US20100319263A1 - High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators - Google Patents
High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators Download PDFInfo
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- US20100319263A1 US20100319263A1 US12/873,928 US87392810A US2010319263A1 US 20100319263 A1 US20100319263 A1 US 20100319263A1 US 87392810 A US87392810 A US 87392810A US 2010319263 A1 US2010319263 A1 US 2010319263A1
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- Prior art keywords
- movable barrier
- sensor
- motor
- gate
- lorentz force
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/70—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/63—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/60—Suspension or transmission members; Accessories therefore
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/644—Flexible elongated pulling elements; Members cooperating with flexible elongated pulling elements
- E05Y2201/656—Chains
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
- E05Y2400/60—Power supply; Power or signal transmission
- E05Y2400/61—Power supply
- E05Y2400/612—Batteries
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/40—Mounting location; Visibility of the elements
- E05Y2600/41—Concealed
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/40—Mounting location; Visibility of the elements
- E05Y2600/452—Mounting location; Visibility of the elements in or on the floor or wall
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/40—Application of doors, windows, wings or fittings thereof for gates
Definitions
- the present invention relates in general to a system for gearless operation of a movable barrier utilizing Lorentz forces, and in particular, a movable barrier operator retrofitted with a gearless motor capable of high torque at very low speeds. Eliminating a gear system in accordance with the present invention lowers maintenance requirements, increases efficiency, and streamlines operation of movable barriers.
- movable barriers such as garage doors or gates
- a gear system which allows for easy movement of a barrier.
- Many developments in the gate operator industry have transformed movable barriers, including the implementation of various kinds of motors and gear systems to operate one or more gates.
- movable barrier systems have included AC induction motors, DC brush motors, and DC brushless motors.
- DC brush motors present the advantage that speed may be controlled in a linear fashion in relation to the voltage applied, however, these motors lose the desired torque at very low speeds. And although DC brushless motors also provide the same speed control, the DC brushless motor also fails to provide the desired high torque at very low speeds.
- gear systems do not provide 100% efficiency.
- gearing systems provide efficiency levels raging from 40% to 90% depending on the quality of the system used; notably, the more efficient gear systems are costly.
- the present invention describes a system for gearless operation of a movable barrier utilizing Lorentz forces.
- the present invention focuses on a system for gearless operation of movable barriers utilizing Lorentz forces, and in particular, movable barrier operators retrofitted with a gearless motor capable of high torque at very low speeds.
- a gear system in accordance with the present invention, lower maintenance requirements may be achieved, efficiency may be increased significantly, and a more compact design streamlines operation of movable barriers.
- a method for gearless operation of a movable barrier comprises attaching a Lorentz force motor directly to a movable barrier such that said movable barrier moves at a speed substantially similar to a rotation speed of said Lorentz force motor, adapting a controller to control said Lorentz force motor, connecting a sensor to said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event, attaching a chain to a sprocket coupled to said Lorentz force motor, and attaching an idle wheel for maintaining said chain mechanically connected to said sprocket, wherein said chain is adapted to transfer a mechanical force generated by said Lorentz motor to move said movable barrier.
- a movable barrier operation system in accordance with the present invention, comprises a movable barrier, a Lorentz force motor adapted to move said movable barrier at a speed substantially similar to a rotation speed of said Lorentz force motor, a controller adapted to control said Lorentz force motor, a sensor connected said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event, a sprocket rotably coupled to said Lorentz force motor, a chain directly coupled to said sprocket and said movable barrier.
- a movable barrier operator in accordance with the present invention, comprises a Lorentz force motor adapted to move a movable barrier at a speed substantially similar to a rotation speed of said Lorentz force motor, a controller adapted to control said Lorentz force motor, and a sensor connected said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event.
- FIG. 1 is a block diagram of the various components comprising a movable barrier operator typical of the ones found in the prior art.
- FIG. 2( a ) is a block diagram illustrating how implementation of a Lorentz force motor eliminates the need for various components traditionally found in the prior art.
- FIG. 2( b ) is a block diagram illustrating how implementation of a Lorentz force motor may still be implemented with a gear system in some applications.
- FIG. 3( a ) illustrates one embodiment of the present invention wherein minimal equipment is used in the operation of a simple sliding gate by eliminating a gear system and implementing a Lorentz force motor with a movable barrier operator.
- FIG. 3( b ) illustrates a more detailed view of the various components that comprise the embodiment shown in FIG. 3( a ).
- FIG. 4 illustrates a side view of the movable barrier operator shown above in FIG. 3( a ) and FIG. 3( b ), revealing the installation arrangement of a Lorentz force motor used to operate a movable barrier in accordance with one embodiment of the present invention.
- FIG. 5 illustrates one embodiment of the present invention which is easily adaptable to various shapes and sizes of barriers, for example different types of gates, due to its small size and lack of gear system.
- FIGS. 6( a )-( b ) illustrates another embodiment in which a small control box contains all necessary components for a movable barrier operator in accordance with the present invention.
- FIG. 7 illustrates yet another embodiment in accordance with the present invention, in which a movable barrier operator may be installed partly underground to avoid installing additional fixtures on a user's property and preserve aesthetic appeal.
- FIG. 8 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is installed directly to a barrier, for example a gate, without the need for gears or belt systems to optimize actuation and preserve space.
- FIG. 9 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is installed directly to another type of barrier, by way of example a roll-up gate, without the need for gears or belt systems to optimize actuation and preserve space.
- a movable barrier operator can be any system that controls a barrier to an entry, an exit, or a view.
- the barrier could be a door for a small entity (i.e. a vehicle), or a gate for a large entity (i.e. a building) which can swing out, slide open, fold or even roll upwards.
- the operator which moves the barrier from an open position to a closed position and vice-versa is retrofitted with a gearless motor that utilizes Lorentz forces to actuate or operate the barrier.
- a Lorentz force motor as described in the present disclosure may be any type of motor that uses Lorentz forces.
- a Lorentz motor in accordance with the present invention is a gearless motor that uses electromagnetic properties to create mechanical work with minimal energy loss.
- FIG. 1 is a block diagram of the various components comprising a movable barrier operator typical of the ones found in the prior art.
- the prior art (as shown) comprises of power source 100 , charger 101 , battery 102 , controller 103 , sensors 104 , switch array 105 , input/output interface (I/O) 106 , motor drive 107 , motor 108 , gear box 109 , and output shaft 110 , which connects to and operates movable barrier 111 .
- I/O input/output interface
- FIG. 2( a ) is a block diagram illustrating how implementation of a Lorentz force motor eliminates the need for various components traditionally found in the prior art.
- the illustrated embodiment comprises a basic system to operate movable barrier 203 without the need for additional components, for example, motor drive 107 , and gear box 109 .
- Motor 200 may be coupled directly to movable barrier 203 and wired to control box 201 where typical components to monitor and control motor 200 may be installed, including any additional features necessary to operate movable barrier 203 , for example sensors 202 .
- movable barrier operator 205 may be a swing gate operator, a window operator, a garage door operator, a slide gate operator, a roll-up door operator, a sliding-door operator, a regular door operator, a revolving door operator, a car door operator, or a car top operator for a convertible vehicle.
- motor 200 may be virtually directly coupled to any movable barrier with few modifications.
- motor 200 be manufactured in a small compact size for most embodiments, however, having a larger size Lorentz motor for other applications would not deviate from the scope of the present invention, for example, motor 200 may be a large motor installed directly to a movable water barrier, wherein control box 291 and sensors 202 are part of a dam.
- FIG. 2( b ) is a block diagram illustrating how implementation of a Lorentz force motor may still be put into practice with a gear system.
- Motor 200 may be coupled to a gearing system or drive mechanism 206 to actuate, for example, multiple movable barriers 207 .
- FIG. 3( a ) illustrates one embodiment of the present invention wherein minimal equipment is used in the operation of a sliding gate by eliminating a gear system, eliminating the need for a chassis, and retrofitting a movable barrier operator with a Lorentz motor.
- the illustrated embodiment comprises gate 300 , gate frame 301 , a simple chain bolt 302 , track 303 , chain 304 , and frame member 306 on which motor 400 may be installed.
- gate 300 may be configured to operate automatically without the need for heavy equipment, complex installation, or additional components such as a gear box.
- This set up, and controller 310 coupled to motor 400 make up gate operator 315 ; a simple but desirable design for applications ranging from access systems for gated communities to large scale industrial size gates.
- FIG. 3( b ) illustrates a more detailed view of the various components that comprise the embodiment shown in FIG. 3( a ).
- gate 300 travels on track 303 utilizing chain 304 to transfer the mechanical force generated by motor 400 .
- Chain 304 may be coupled or attached to gate 300 by any appropriate means without deviating from the scope of the present invention, for example, by using chain bolt 302 to attach said chain 304 to a lower portion of gate 300 .
- motor 400 may be retrofitted with sprocket 308 so that sprocket 308 may be coupled with chain 304 .
- Guiding wheels or idle sprockets 307 may be attached or installed onto frame member 306 in order to keep chain 304 properly mounted and coupled with sprocket 308 .
- Frame member 306 is typically mounted onto gate frame 301 which may be a desirable installing configuration for movable barrier operator 315 .
- fixture 312 may be installed to support frame member 306 and chain 304 into proper place for operation of gate 300 .
- controller 310 is connected to motor 400 using wire conduit 309 which runs from frame member 306 to some remote location on the premise where movable barrier operator has been installed. Controller 310 serves as the means to monitor and control movable barrier operator 315 so it is typically accessible to personnel which may access controller 310 . However, and without limiting the scope of the present invention, controller 310 may be mounted directly onto frame member 306 .
- wire conduit 309 provides a direct line of communication between motor 400 and controller 310 in addition to providing movable barrier operator 315 with a power source. This configuration may be desirable to keep movable barrier operator simple to install without the need for other components.
- movable barrier operator 315 may be battery powered.
- a battery (not shown), connected to a small controller (not shown) may be installed or coupled to frame member 306 .
- Such controller may then be able to send and receive information wirelessly thus circumventing the need for wire conduit 309 and controller 310 .
- this embodiment would require more sophisticated technology (presently available) which may increase the cost of movable barrier 315 .
- attaching a controller and battery directly to frame member 306 may require stronger materials for frame member 306 and additional maintenance to movable barrier operator 315 to for example, assure that said battery is properly charged.
- FIG. 4 illustrates a side view of the movable barrier operator shown above in FIG. 3( a ) and FIG. 3( b ), revealing the installation arrangement of a Lorentz force motor used to operate a movable barrier in accordance with one embodiment of the present invention.
- Frame member 306 may be made of any material strong enough to hold a small motor such as motor 400 and the additional weight of chain 304 .
- a metal material is used to manufacture frame member 306 which may be drilled or retrofitted with mounting fixtures in order to allow installation of frame member 306 onto a structure, for example gate frame 301 .
- frame mount 306 may be configured for universal installation on a variety of sizes of for example, gates.
- motor 400 is mounted on frame member 306 using support member 402 . Similar devices including typical bolts (not shown) may also be used to place motor 400 securely onto frame member 306 . Once mounted, frame member 306 may be placed on a base 312 to securely hold motor 400 and chain 304 so that mechanical contact is kept.
- Motor 400 may be retrofitted with sprocket 308 directly on output shaft 401 .
- sprocket 308 and idle sprockets 307 keep chain 304 in continuous contact so that the energy produced by motor 400 is properly used as mechanical energy to move chain 304 and operate gate 300 .
- motor 400 By rotating its output shaft 401 clock-wise and counter-clockwise, motor 400 is able to move chain 304 in a horizontal plane, thus sliding gate 300 back and forth, to and from, opened and closed positions; such movement being dictated by predetermined parameters a user may program via controller 310 .
- a cosmetic cover may be desirable to add to frame member 306 for aesthetic purposes. Furthermore, a cover may provide protection from exposure and keep sprocket 308 , sprockets 307 and motor 400 from being damaged by for example, the weather.
- FIG. 5 illustrates one embodiment of the present invention that is easily adaptable to various shapes and sizes of barriers, for example different types of gates, do to its small size and lack of gear system.
- Movable barrier operator 500 is similar to movable barrier 315 , however, movable barrier operator 500 has been configured to be universally adaptable. As shown, movable barrier operator 500 may be installed on post 501 so as to be able to slide up and down post 501 depending on the size of gate 502 or positioning desired for a particular application.
- gate 502 may be a gate located in a geographical are wherein harsh weather such as snow often fall. To prevent rust and damage, an installer or user may decide to mount movable barrier operator 500 at high position on post 501 . Naturally, chain 504 and chain bolt 503 would need to be similarly position so as to allow proper operation of gate 501 .
- gate 502 is located in a luxurious gated community wherein aesthetically pleasing designs are preferred.
- movable barrier operator may be placed very low to the ground in an inconspicuous place so as to position chain 504 running along a covered foot of gate 502 .
- FIG. 6( a ) illustrates another embodiment in which a small control box contains all necessary components for a movable barrier operator
- FIG. 6( b ) illustrates a similar embodiment of the present invention wherein a motor hangs from a post; this simpler design incorporates the use of a remote location for the controller and power source.
- Both embodiments consist of gate 600 , articulated arm 601 , clutch 602 , Lorentz motor 603 , and wire conduit 604 .
- the embodiment illustrated in FIG. 6( a ) further comprises a control box 607 which houses controller 605 and Lorentz motor 603 .
- This embodiment may be desirable to protect a movable barrier operator from tough conditions, for example in agricultural settings or geographical locations that experience extreme weather.
- control box 607 is constructed of a durable light weight material and may be easily removed for maintenance or updating controller 605 's firmware.
- a desirable advantage of the later embodiment is the elimination of parts and components to operate gate 600 .
- Lorentz motor 603 hangs from a support beam 606 , for example a post or similarly simple fixture—this provides easy access to the motor in case a replacement is required or adjustments need to be performed.
- support beam 606 is adjustable to allow users flexibility when installing.
- controller 605 (not shown in FIG. 6( b )) is positioned in a remote location accessible to an installer or user.
- controller 605 is located inside a building which provides a power source (not shown) and communicates with Lorentz motor 603 for remotely monitoring or operation purposes via conduit 604 .
- FIG. 7 illustrates yet another embodiment in accordance with the present invention, in which a movable barrier operator may be installed very low to the ground to avoid installing large fixtures on a user's property and preserve aesthetic appeal of for example, an expensive swing gate at the entry point of a large estate.
- This embodiment of the present invention comprises swing gate 700 , articulated arm 701 , Lorentz motor 702 , base 703 , conduit 704 , and controller 705 .
- Lorentz motor 702 is exposed so as to provide easy access in case of repair or replacement.
- a power source may be located inside a home, for example, and provided to Lorentz motor 702 via conduit 704 .
- controller 705 may too be located inside said home (not shown) for access by users.
- Base 703 supports Lorentz motor 702 while allowing a clearance from the ground. By placing clutch 706 low to the ground, articulated arm 701 is able to operate swing gate 700 without interfering with the aesthetic appeal of swing gate 700 .
- This configuration is very desirable in the gate industry with particular preference of clients that spend many thousands of dollars on such expensive gates, and who desire to have components such as articulated arm 701 hidden away or away from view of, for example, swing gate 700 .
- a gearless movable gate operator eliminates the need for complex belt systems, additional gearing or voltage control systems, a user is provided with the flexibility to position, mount, or install a movable barrier operator, in accordance with the present invention, in a wide range of configurations depending on a user's needs.
- FIG. 8 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is coupled directly to a movable barrier, for example a gate, without the need for gears or belt systems to optimize actuation and preserve space.
- Movable barrier operator 800 comprises motor 805 which has been mounted underneath gate 811 .
- Movable barrier operator 800 further comprises casing 801 installed at least partly underground, articulated arm 802 which connects with motor 805 's output shaft 803 , and is supplied power from a remote source (not shown) via conduit 807 .
- Motor 805 is held in place against casing 801 by bolts 804 ; hinge 809 allows casing 801 to swing open and allow a user, for example an installer, to access motor 805 . Furthermore, to add stability, casing 801 may be reinforced against post 808 via bolts 810 .
- FIG. 9 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is installed directly to a barrier's drive mechanism, for example a roll-up gate, without the need for gears or belt systems to optimize actuation and preserve space.
- a barrier's drive mechanism for example a roll-up gate
- One of the advantages of gearless operation of a movable barrier, in accordance with the present invention, is the versatility of its applications. Normally a roll-up door such as roll-up door 900 must use beltway systems or a gearbox in order for a conventional motor to properly and smoothly actuate door 900 . And even with the use of conventional gear systems to move such barriers, actuation and operation is often rough due to the low torque at slow speeds. Such conventional means of moving a barrier need additional components in order to control the frequency of a voltage fed to a conventional motor.
- Lorentz motor 901 may be mounted and installed directly into door 900 's main drive mechanism with few modifications.
- the remaining equipment would only comprise conduit 903 to provide communication and power from controller 902 , where users may monitor and control door 900 's operation.
- door 900 may be rolled up or rolled down, being held in place and guided by tracks 905 , from a close position to an open position and vice-versa.
- Lorentz force motors in accordance with the present invention are a gearless motor that uses electromagnetic properties to create mechanical work with minimal energy loss. These motors offer very high torque at very low speeds thus making these motors ideal tools to implement with a movable barrier operation system.
- a gearless movable barrier operator in accordance with the present invention can be any system that controls a barrier to an entry, an exit, or a view, utilizing Lorentz force motors.
- the barrier could be a door for a small entity (i.e. a vehicle), or a gate for a large entity (i.e. a building), which can swing out, slide open, fold or even roll upwards.
- a gearless movable barrier operator in accordance with the present invention may be implemented in a variety of embodiments for a wide range of applications.
- a gearless movable barrier operator in accordance with the present invention may be a swing gate operator, a window operator, a garage door operator, a slide gate operator, a roll-up door operator, a sliding-door operator, a regular door operator, a revolving door operator, a vehicular door operator, or a vehicular top operator (e.g. a top for a convertible vehicle).
- this disclosure does not necessarily exclude the implementation of any type of gearing system in conjunction with a gearless movable barrier operator as defined herein, however, the reduction of parts, reduced maintenance, and all other advantages served by a completely gearless system is desirable.
- an embodiment in which some type of gearing system is implemented with a gearless Lorentz force motor does not deviate from the scope of the present invention.
Abstract
The invention is a system for gearless operation of a movable barrier utilizing Lorentz forces, and in particular, a movable barrier operator retrofitted with a gearless motor capable of high torque at very low speeds. Eliminating a gear system in accordance with the present invention lowers maintenance requirements, increases efficiency, and streamlines operation of any movable barrier. By utilizing a motor which produces high-torque at low a speeds a system in accordance with the present invention does away with the need for complicated gears and pulley systems in order to achieve control of movable barriers. The present invention allows manufacturers, distributors and consumers to implement movable barrier systems with much more versatility and efficiency.
Description
- The present application is a continuation application that claims priority under 35 U.S.C. §120 to U.S. patent application Ser. No. 12/019,305 filed on Jan. 24, 2008, the disclosure of which is incorporated herein by reference in its entirety.
- The present invention relates in general to a system for gearless operation of a movable barrier utilizing Lorentz forces, and in particular, a movable barrier operator retrofitted with a gearless motor capable of high torque at very low speeds. Eliminating a gear system in accordance with the present invention lowers maintenance requirements, increases efficiency, and streamlines operation of movable barriers.
- Typically, automatic and manual operation of movable barriers, such as garage doors or gates, has included a gear system which allows for easy movement of a barrier. Many developments in the gate operator industry have transformed movable barriers, including the implementation of various kinds of motors and gear systems to operate one or more gates. For example, in the past, movable barrier systems have included AC induction motors, DC brush motors, and DC brushless motors.
- One of the problems encountered in the gate operator industry is controlling actuation to achieve smooth, efficient, and effective operation of movable barriers. The current practice, which utilizes motors such as AC induction motors, must implement various complex systems of gears and electronics in order to provide the adequate amount of power at the correct speed.
- For example, systems with conventional motors usually include phase control mechanisms to monitor and alter the frequency of voltage applied to the motor—furthermore these motors fail to provide high torque at low speeds. DC brush motors present the advantage that speed may be controlled in a linear fashion in relation to the voltage applied, however, these motors lose the desired torque at very low speeds. And although DC brushless motors also provide the same speed control, the DC brushless motor also fails to provide the desired high torque at very low speeds.
- The gate operation industry has therefore implemented the use of a gear box or a belt system to accomplish the torque required to move a particular barrier. These complex systems seek to regulate smooth actuation but remain inadequate to retain linear control of speed while optimizing the correct amount of torque necessary to perform a particular task.
- Adding belts, chains or gear boxes increases the volume of the system, adding more moving parts and essentially additional variables for possible system malfunctions. Manufacturers in the gate operation industry have attempted to alleviate this problem but those methods remain inadequate for the following reasons.
- Some manufacturers have tried to implement c-phase mounting techniques between a motor and the gear box, however, this method raises the possibility of oil or grease leakage that may damage a gate operating system.
- Other manufacturers have tried to minimize the number of components in a gate operating system by implementing a motor-gear head device to minimize potential problems during assembly. However, gear boxes, with oil or grease that may eventually leak, are still required and thus present the problem of potential damage and higher maintenance requirements.
- Alternatively, other manufacturers have implemented a planetary gear system in their designs. This gear system presents the advantage of very small gearing capable of providing high torque, however, their need for oil or grease still requires higher maintenance to prevent damage from its lubricants.
- Yet perhaps the most significant problem presented by the use of gear systems is the fact that gear systems do not provide 100% efficiency. In fact, it is commonly known in the industry that such gearing systems provide efficiency levels raging from 40% to 90% depending on the quality of the system used; notably, the more efficient gear systems are costly.
- Due to the inadequate methods and systems used to operate movable barriers (particularly in industrial applications), the gate operation industry is flooded with gate operators that are large, heavy, and complex—which require relatively large motors and big gear boxes. For these reasons and others, the prior art has been inadequate to suit the needs of gate operator users, installers and manufacturers.
- Therefore, there is a need in the art for a system that utilizes fewer components to achieve higher precision actuation of movable barriers without complex gear systems and electronics. It is desirable to develop a movable barrier operator that contains fewer parts to minimize maintenance and potential malfunctions, while retaining the desired control of the operator at low speeds and generating the desired high torque during actuation. It is to these ends that the present invention has been developed.
- To minimize the limitations in the prior art, and to minimize other limitations that will be apparent upon reading and understanding the present specification, the present invention describes a system for gearless operation of a movable barrier utilizing Lorentz forces.
- The present invention focuses on a system for gearless operation of movable barriers utilizing Lorentz forces, and in particular, movable barrier operators retrofitted with a gearless motor capable of high torque at very low speeds. By eliminating a gear system, in accordance with the present invention, lower maintenance requirements may be achieved, efficiency may be increased significantly, and a more compact design streamlines operation of movable barriers.
- A method for gearless operation of a movable barrier, in accordance with the present invention, comprises attaching a Lorentz force motor directly to a movable barrier such that said movable barrier moves at a speed substantially similar to a rotation speed of said Lorentz force motor, adapting a controller to control said Lorentz force motor, connecting a sensor to said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event, attaching a chain to a sprocket coupled to said Lorentz force motor, and attaching an idle wheel for maintaining said chain mechanically connected to said sprocket, wherein said chain is adapted to transfer a mechanical force generated by said Lorentz motor to move said movable barrier.
- A movable barrier operation system, in accordance with the present invention, comprises a movable barrier, a Lorentz force motor adapted to move said movable barrier at a speed substantially similar to a rotation speed of said Lorentz force motor, a controller adapted to control said Lorentz force motor, a sensor connected said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event, a sprocket rotably coupled to said Lorentz force motor, a chain directly coupled to said sprocket and said movable barrier.
- A movable barrier operator, in accordance with the present invention, comprises a Lorentz force motor adapted to move a movable barrier at a speed substantially similar to a rotation speed of said Lorentz force motor, a controller adapted to control said Lorentz force motor, and a sensor connected said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event.
- It is an objective of the present invention to implement Lorentz force motors into movable barrier operators to preserve energy efficiency.
- It is another objective of the present invention to eliminate the need for gearing systems for high torque operations at low speeds.
- Finally, it is yet another objective of the present invention to provide a movable barrier operation system with minimal components and high versatility—applicable to a wide variety of applications.
- These and other advantages and features of the present invention are described herein with specificity so as to make the present invention understandable to one of ordinary skill in the art.
- Elements in the figures have not necessarily been drawn to scale in order to enhance their clarity and improve understanding of these various elements and embodiments of the invention. Furthermore, elements that are known to be common and well understood to those in the industry are not depicted in order to provide a clear view of the various embodiments of the invention.
-
FIG. 1 is a block diagram of the various components comprising a movable barrier operator typical of the ones found in the prior art. -
FIG. 2( a) is a block diagram illustrating how implementation of a Lorentz force motor eliminates the need for various components traditionally found in the prior art.FIG. 2( b) is a block diagram illustrating how implementation of a Lorentz force motor may still be implemented with a gear system in some applications. -
FIG. 3( a) illustrates one embodiment of the present invention wherein minimal equipment is used in the operation of a simple sliding gate by eliminating a gear system and implementing a Lorentz force motor with a movable barrier operator. -
FIG. 3( b) illustrates a more detailed view of the various components that comprise the embodiment shown inFIG. 3( a). -
FIG. 4 illustrates a side view of the movable barrier operator shown above inFIG. 3( a) andFIG. 3( b), revealing the installation arrangement of a Lorentz force motor used to operate a movable barrier in accordance with one embodiment of the present invention. -
FIG. 5 illustrates one embodiment of the present invention which is easily adaptable to various shapes and sizes of barriers, for example different types of gates, due to its small size and lack of gear system. -
FIGS. 6( a)-(b) illustrates another embodiment in which a small control box contains all necessary components for a movable barrier operator in accordance with the present invention. -
FIG. 7 illustrates yet another embodiment in accordance with the present invention, in which a movable barrier operator may be installed partly underground to avoid installing additional fixtures on a user's property and preserve aesthetic appeal. -
FIG. 8 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is installed directly to a barrier, for example a gate, without the need for gears or belt systems to optimize actuation and preserve space. -
FIG. 9 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is installed directly to another type of barrier, by way of example a roll-up gate, without the need for gears or belt systems to optimize actuation and preserve space. - In the following discussion that addresses a number of embodiments and applications of the present invention, reference is made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and changes may be made without departing from the scope of the invention.
- In the following detailed description, a movable barrier operator, or gate operator, can be any system that controls a barrier to an entry, an exit, or a view. The barrier could be a door for a small entity (i.e. a vehicle), or a gate for a large entity (i.e. a building) which can swing out, slide open, fold or even roll upwards. The operator which moves the barrier from an open position to a closed position and vice-versa is retrofitted with a gearless motor that utilizes Lorentz forces to actuate or operate the barrier.
- Briefly, a Lorentz force motor as described in the present disclosure may be any type of motor that uses Lorentz forces. Typically, a Lorentz motor in accordance with the present invention is a gearless motor that uses electromagnetic properties to create mechanical work with minimal energy loss.
-
FIG. 1 is a block diagram of the various components comprising a movable barrier operator typical of the ones found in the prior art. Typically, the prior art (as shown) comprises ofpower source 100,charger 101,battery 102,controller 103,sensors 104,switch array 105, input/output interface (I/O) 106,motor drive 107,motor 108,gear box 109, andoutput shaft 110, which connects to and operatesmovable barrier 111. - By implementing a gearless motor and removing
gear box 109 andoutput shaft 110, work efficiency may be maximized, maintenance may be significantly minimized, and with less components, the improved movable barrier operator is more versatile; a single device capable of adapting to numerous embodiments. For example,FIG. 2( a) is a block diagram illustrating how implementation of a Lorentz force motor eliminates the need for various components traditionally found in the prior art. - The illustrated embodiment comprises a basic system to operate
movable barrier 203 without the need for additional components, for example,motor drive 107, andgear box 109.Motor 200 may be coupled directly tomovable barrier 203 and wired to controlbox 201 where typical components to monitor and controlmotor 200 may be installed, including any additional features necessary to operatemovable barrier 203, forexample sensors 202. - The elimination of a gear box means the illustrated movable barrier operator may be implemented for a wide variety of applications. For example, and without deviating from the scope of the present invention,
movable barrier operator 205, may be a swing gate operator, a window operator, a garage door operator, a slide gate operator, a roll-up door operator, a sliding-door operator, a regular door operator, a revolving door operator, a car door operator, or a car top operator for a convertible vehicle. - By eliminating the need for a gear box and even the need for a chassis to hold
motor 200,motor 200 may be virtually directly coupled to any movable barrier with few modifications. Thus it is preferable thatmotor 200 be manufactured in a small compact size for most embodiments, however, having a larger size Lorentz motor for other applications would not deviate from the scope of the present invention, for example,motor 200 may be a large motor installed directly to a movable water barrier, wherein control box 291 andsensors 202 are part of a dam. - Implementing a gear box or gear system does not deviate from practice of the present invention however, and there may be some applications in which some gearing may be helpful.
FIG. 2( b) is a block diagram illustrating how implementation of a Lorentz force motor may still be put into practice with a gear system.Motor 200 may be coupled to a gearing system or drivemechanism 206 to actuate, for example, multiplemovable barriers 207. - In turn, with reference to the remaining figures, a number of examples of other various embodiments, including some examples already disclosed, will be discussed in greater detail.
-
FIG. 3( a) illustrates one embodiment of the present invention wherein minimal equipment is used in the operation of a sliding gate by eliminating a gear system, eliminating the need for a chassis, and retrofitting a movable barrier operator with a Lorentz motor. - The illustrated embodiment comprises
gate 300,gate frame 301, asimple chain bolt 302,track 303,chain 304, andframe member 306 on whichmotor 400 may be installed. By simply attachingframe member 306 onto an appropriate structure, forexample gate frame 301, and properly installingchain 304 ontogate 300 andframe member 306,gate 300 may be configured to operate automatically without the need for heavy equipment, complex installation, or additional components such as a gear box. This set up, andcontroller 310 coupled tomotor 400, make upgate operator 315; a simple but desirable design for applications ranging from access systems for gated communities to large scale industrial size gates. -
FIG. 3( b) illustrates a more detailed view of the various components that comprise the embodiment shown inFIG. 3( a). - Typically,
gate 300 travels ontrack 303 utilizingchain 304 to transfer the mechanical force generated bymotor 400.Chain 304 may be coupled or attached togate 300 by any appropriate means without deviating from the scope of the present invention, for example, by usingchain bolt 302 to attach saidchain 304 to a lower portion ofgate 300. - Upon installing or mounting
motor 400 ontoframe member 306,motor 400 may be retrofitted withsprocket 308 so thatsprocket 308 may be coupled withchain 304. Guiding wheels oridle sprockets 307 may be attached or installed ontoframe member 306 in order to keepchain 304 properly mounted and coupled withsprocket 308. -
Frame member 306 is typically mounted ontogate frame 301 which may be a desirable installing configuration formovable barrier operator 315. However, in an alternative embodiment,fixture 312 may be installed to supportframe member 306 andchain 304 into proper place for operation ofgate 300. - Typically,
controller 310 is connected tomotor 400 usingwire conduit 309 which runs fromframe member 306 to some remote location on the premise where movable barrier operator has been installed.Controller 310 serves as the means to monitor and controlmovable barrier operator 315 so it is typically accessible to personnel which may accesscontroller 310. However, and without limiting the scope of the present invention,controller 310 may be mounted directly ontoframe member 306. - In an exemplary embodiment,
wire conduit 309 provides a direct line of communication betweenmotor 400 andcontroller 310 in addition to providingmovable barrier operator 315 with a power source. This configuration may be desirable to keep movable barrier operator simple to install without the need for other components. - However, and without deviating from the scope of the present invention, in another embodiment
movable barrier operator 315 may be battery powered. A battery (not shown), connected to a small controller (not shown) may be installed or coupled toframe member 306. Such controller may then be able to send and receive information wirelessly thus circumventing the need forwire conduit 309 andcontroller 310. Notably, this embodiment would require more sophisticated technology (presently available) which may increase the cost ofmovable barrier 315. Furthermore, attaching a controller and battery directly toframe member 306 may require stronger materials forframe member 306 and additional maintenance tomovable barrier operator 315 to for example, assure that said battery is properly charged. -
FIG. 4 illustrates a side view of the movable barrier operator shown above inFIG. 3( a) andFIG. 3( b), revealing the installation arrangement of a Lorentz force motor used to operate a movable barrier in accordance with one embodiment of the present invention. -
Frame member 306 may be made of any material strong enough to hold a small motor such asmotor 400 and the additional weight ofchain 304. In one embodiment a metal material is used to manufactureframe member 306 which may be drilled or retrofitted with mounting fixtures in order to allow installation offrame member 306 onto a structure, forexample gate frame 301. In another embodiment, discussed below in reference toFIG. 5 ,frame mount 306 may be configured for universal installation on a variety of sizes of for example, gates. - In an exemplary embodiment,
motor 400 is mounted onframe member 306 usingsupport member 402. Similar devices including typical bolts (not shown) may also be used to placemotor 400 securely ontoframe member 306. Once mounted,frame member 306 may be placed on a base 312 to securely holdmotor 400 andchain 304 so that mechanical contact is kept. -
Motor 400 may be retrofitted withsprocket 308 directly onoutput shaft 401. Asoutput shaft 401 is turned bymotor 400,sprocket 308 andidle sprockets 307keep chain 304 in continuous contact so that the energy produced bymotor 400 is properly used as mechanical energy to movechain 304 and operategate 300. By rotating itsoutput shaft 401 clock-wise and counter-clockwise,motor 400 is able to movechain 304 in a horizontal plane, thus slidinggate 300 back and forth, to and from, opened and closed positions; such movement being dictated by predetermined parameters a user may program viacontroller 310. - It may be desirable to add a cosmetic cover to frame
member 306 for aesthetic purposes. Furthermore, a cover may provide protection from exposure and keepsprocket 308,sprockets 307 andmotor 400 from being damaged by for example, the weather. - Turning to the next figure,
FIG. 5 illustrates one embodiment of the present invention that is easily adaptable to various shapes and sizes of barriers, for example different types of gates, do to its small size and lack of gear system. -
Movable barrier operator 500 is similar tomovable barrier 315, however,movable barrier operator 500 has been configured to be universally adaptable. As shown,movable barrier operator 500 may be installed onpost 501 so as to be able to slide up and downpost 501 depending on the size ofgate 502 or positioning desired for a particular application. - For example, and without deviating from the scope of the present invention,
gate 502 may be a gate located in a geographical are wherein harsh weather such as snow often fall. To prevent rust and damage, an installer or user may decide to mountmovable barrier operator 500 at high position onpost 501. Naturally,chain 504 andchain bolt 503 would need to be similarly position so as to allow proper operation ofgate 501. - In another example,
gate 502 is located in a luxurious gated community wherein aesthetically pleasing designs are preferred. In such embodiment movable barrier operator may be placed very low to the ground in an inconspicuous place so as to positionchain 504 running along a covered foot ofgate 502. -
FIG. 6( a) illustrates another embodiment in which a small control box contains all necessary components for a movable barrier operator, andFIG. 6( b) illustrates a similar embodiment of the present invention wherein a motor hangs from a post; this simpler design incorporates the use of a remote location for the controller and power source. - Both embodiments consist of
gate 600, articulatedarm 601, clutch 602,Lorentz motor 603, andwire conduit 604. The embodiment illustrated inFIG. 6( a) further comprises acontrol box 607 which housescontroller 605 andLorentz motor 603. This embodiment may be desirable to protect a movable barrier operator from tough conditions, for example in agricultural settings or geographical locations that experience extreme weather. - Typically
control box 607 is constructed of a durable light weight material and may be easily removed for maintenance or updatingcontroller 605's firmware. - As Lorentz motor 603 rotates, its output shaft generates mechanical energy, thus clutch 602, being attached to said
Lorentz motor 603, turns articulatedarm 601 to swingopen gate 600. Naturally, the embodiment illustrated inFIG. 6( b) operatesgate 600 in a similar fashion. - A desirable advantage of the later embodiment is the elimination of parts and components to operate
gate 600. Instead ofcontroller case 607,Lorentz motor 603 hangs from asupport beam 606, for example a post or similarly simple fixture—this provides easy access to the motor in case a replacement is required or adjustments need to be performed. In an exemplary embodiment,support beam 606 is adjustable to allow users flexibility when installing. - Furthermore, instead of installing the controller by
gate 600, controller 605 (not shown inFIG. 6( b)) is positioned in a remote location accessible to an installer or user. For example, and without deviating from the scope of the present invention,controller 605 is located inside a building which provides a power source (not shown) and communicates withLorentz motor 603 for remotely monitoring or operation purposes viaconduit 604. -
FIG. 7 illustrates yet another embodiment in accordance with the present invention, in which a movable barrier operator may be installed very low to the ground to avoid installing large fixtures on a user's property and preserve aesthetic appeal of for example, an expensive swing gate at the entry point of a large estate. This embodiment of the present invention comprisesswing gate 700, articulatedarm 701,Lorentz motor 702,base 703,conduit 704, andcontroller 705. -
Lorentz motor 702 is exposed so as to provide easy access in case of repair or replacement. A power source may be located inside a home, for example, and provided toLorentz motor 702 viaconduit 704. Similarly,controller 705 may too be located inside said home (not shown) for access by users. -
Base 703 supportsLorentz motor 702 while allowing a clearance from the ground. By placing clutch 706 low to the ground, articulatedarm 701 is able to operateswing gate 700 without interfering with the aesthetic appeal ofswing gate 700. This configuration is very desirable in the gate industry with particular preference of clients that spend many thousands of dollars on such expensive gates, and who desire to have components such as articulatedarm 701 hidden away or away from view of, for example,swing gate 700. - Since the present invention for a gearless movable gate operator eliminates the need for complex belt systems, additional gearing or voltage control systems, a user is provided with the flexibility to position, mount, or install a movable barrier operator, in accordance with the present invention, in a wide range of configurations depending on a user's needs.
-
FIG. 8 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is coupled directly to a movable barrier, for example a gate, without the need for gears or belt systems to optimize actuation and preserve space. -
Movable barrier operator 800 comprisesmotor 805 which has been mounted underneathgate 811.Movable barrier operator 800 further comprises casing 801 installed at least partly underground, articulatedarm 802 which connects withmotor 805'soutput shaft 803, and is supplied power from a remote source (not shown) viaconduit 807. -
Motor 805 is held in place againstcasing 801 bybolts 804; hinge 809 allows casing 801 to swing open and allow a user, for example an installer, to accessmotor 805. Furthermore, to add stability, casing 801 may be reinforced againstpost 808 viabolts 810. -
FIG. 9 illustrates yet another embodiment in accordance with the present invention wherein a movable barrier operator is installed directly to a barrier's drive mechanism, for example a roll-up gate, without the need for gears or belt systems to optimize actuation and preserve space. - One of the advantages of gearless operation of a movable barrier, in accordance with the present invention, is the versatility of its applications. Normally a roll-up door such as roll-up
door 900 must use beltway systems or a gearbox in order for a conventional motor to properly and smoothly actuatedoor 900. And even with the use of conventional gear systems to move such barriers, actuation and operation is often rough due to the low torque at slow speeds. Such conventional means of moving a barrier need additional components in order to control the frequency of a voltage fed to a conventional motor. - Without the use of any gear box,
Lorentz motor 901 may be mounted and installed directly intodoor 900's main drive mechanism with few modifications. The remaining equipment would only compriseconduit 903 to provide communication and power fromcontroller 902, where users may monitor and controldoor 900's operation. Upon actuation,door 900 may be rolled up or rolled down, being held in place and guided bytracks 905, from a close position to an open position and vice-versa. - Lorentz force motors in accordance with the present invention are a gearless motor that uses electromagnetic properties to create mechanical work with minimal energy loss. These motors offer very high torque at very low speeds thus making these motors ideal tools to implement with a movable barrier operation system.
- A gearless movable barrier operator in accordance with the present invention can be any system that controls a barrier to an entry, an exit, or a view, utilizing Lorentz force motors. The barrier could be a door for a small entity (i.e. a vehicle), or a gate for a large entity (i.e. a building), which can swing out, slide open, fold or even roll upwards.
- A gearless movable barrier operator in accordance with the present invention may be implemented in a variety of embodiments for a wide range of applications. For example, and without limiting the scope of the present invention, a gearless movable barrier operator in accordance with the present invention may be a swing gate operator, a window operator, a garage door operator, a slide gate operator, a roll-up door operator, a sliding-door operator, a regular door operator, a revolving door operator, a vehicular door operator, or a vehicular top operator (e.g. a top for a convertible vehicle).
- Furthermore, this disclosure does not necessarily exclude the implementation of any type of gearing system in conjunction with a gearless movable barrier operator as defined herein, however, the reduction of parts, reduced maintenance, and all other advantages served by a completely gearless system is desirable. Thus, an embodiment in which some type of gearing system is implemented with a gearless Lorentz force motor does not deviate from the scope of the present invention.
- A system for high-torque/low speed gearless operation of a movable barrier has been described. The foregoing description of the various exemplary embodiments of the invention has been presented for the purposes of illustration and disclosure. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the invention not be limited by this detailed description, but by the claims and the equivalents to the claims.
Claims (20)
1. A method for gearless operation of a movable barrier, comprising:
attaching a Lorentz force motor directly to a movable barrier such that said movable barrier moves at a speed substantially similar to a rotation speed of said Lorentz force motor;
adapting a controller to control said Lorentz force motor;
connecting a sensor to said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event;
attaching a chain to a sprocket coupled to said Lorentz force motor; and
attaching an idle wheel for maintaining said chain mechanically connected to said sprocket, wherein said chain is adapted to transfer a mechanical force generated by said Lorentz motor to move said movable barrier.
2. The method of claim 1 , wherein said sensor transmits said signal to said controller after detection of said predefined event.
3. The method of claim 2 , wherein said controller is adapted to activate said Lorentz force motor upon reception of said signal from said sensor.
4. The method of claim 1 , further comprising adapting said movable barrier to move on a track.
5. A movable barrier operation system, comprising:
a movable barrier;
a Lorentz force motor adapted to move said movable barrier at a speed substantially similar to a rotation speed of said Lorentz force motor;
a controller adapted to control said Lorentz force motor;
a sensor connected said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event;
a sprocket rotably coupled to said Lorentz force motor; and
a chain directly coupled to said sprocket and said movable barrier.
6. The movable barrier operation system of claim 5 , wherein said controller is adapted to activate said Lorentz force motor upon reception of said signal from said sensor.
7. The movable barrier operation system of claim 5 , wherein said sensor comprises an infra red sensor.
8. The movable barrier operation system of claim 5 , wherein said sensor comprises a motion detection sensor.
9. The movable barrier operation system of claim 5 , wherein said sensor comprises an inductive loop sensor.
10. The movable barrier operation system of claim 5 , wherein said movable barrier comprises a swing gate.
11. The movable barrier operation system of claim 5 , wherein said movable barrier comprises a roll-up gate.
12. The movable barrier operation system of claim 5 , wherein said movable barrier comprises an articulated door.
13. The movable barrier operation system of claim 5 , wherein said movable barrier comprises a sliding gate.
14. A movable barrier operator, comprising:
a Lorentz force motor adapted to move a movable barrier at a speed substantially similar to a rotation speed of said Lorentz force motor;
a controller adapted to control said Lorentz force motor; and
a sensor connected said controller, wherein said sensor is adapted to generate a signal after detecting a predefined event.
15. The movable barrier operator of claim 14 , wherein said controller is adapted to activate said Lorentz force motor upon reception of said signal from said sensor.
16. The movable barrier operator of claim 14 , further comprising an actuating arm coupled to said Lorentz force motor and said movable barrier.
17. The movable barrier operator of claim 16 , wherein the actuating arm is adapted to move said movable barrier via transferred mechanical force generated by said Lorentz motor.
18. The movable barrier operator of claim 14 , wherein said sensor comprises an infra red sensor.
19. The movable barrier operator of claim 14 , wherein said sensor comprises a motion detection sensor.
20. The movable barrier operator of claim 14 , wherein said sensor comprises an inductive loop sensor.
Priority Applications (1)
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US12/873,928 US20100319263A1 (en) | 2008-01-24 | 2010-09-01 | High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators |
Applications Claiming Priority (2)
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US12/019,305 US7816875B2 (en) | 2008-01-24 | 2008-01-24 | High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators |
US12/873,928 US20100319263A1 (en) | 2008-01-24 | 2010-09-01 | High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators |
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US12/019,305 Continuation US7816875B2 (en) | 2008-01-24 | 2008-01-24 | High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators |
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US20100319263A1 true US20100319263A1 (en) | 2010-12-23 |
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US12/019,305 Active 2029-02-01 US7816875B2 (en) | 2008-01-24 | 2008-01-24 | High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators |
US12/873,928 Abandoned US20100319263A1 (en) | 2008-01-24 | 2010-09-01 | High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators |
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US12/019,305 Active 2029-02-01 US7816875B2 (en) | 2008-01-24 | 2008-01-24 | High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220162898A1 (en) * | 2019-04-02 | 2022-05-26 | Wheel.Me As | Drive unit for moving a door |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9143009B2 (en) * | 2007-02-01 | 2015-09-22 | The Chamberlain Group, Inc. | Method and apparatus to facilitate providing power to remote peripheral devices for use with a movable barrier operator system |
US20080256869A1 (en) | 2007-04-20 | 2008-10-23 | Opcon Manufacturing Systems, Inc. | Sealing arrangement for door operating apparatus retrofit kit |
US8091283B2 (en) | 2007-04-20 | 2012-01-10 | Opcon International Holdings, L.P. | Adjustable spindle arrangement for door operating apparatus retrofit kit |
US7816879B2 (en) * | 2008-02-19 | 2010-10-19 | Viking Access Systems, Llc | High torque movable barrier actuation at low speeds utilizing a hub motor |
US20090211160A1 (en) * | 2008-02-26 | 2009-08-27 | Ali Tehranchi | Access device with a photovoltaic housing utilized to generate power |
US20100289616A1 (en) * | 2009-05-18 | 2010-11-18 | Ali Tehranchi | Movable barrier system adapted to utilize biometric technology to identify and authorize access to premises |
DE102010024108A1 (en) * | 2010-06-17 | 2011-12-22 | Dorma Gmbh + Co. Kg | Karuselltür |
US8707627B2 (en) | 2010-09-20 | 2014-04-29 | The Chamberlain Group, Inc. | Method of removing slack from a flexible driven member |
WO2012088248A1 (en) * | 2010-12-23 | 2012-06-28 | Veritas Medical Solutions Llc | Rotating radiation shielded entrance assembly |
FR2973431B1 (en) * | 2011-04-01 | 2017-06-23 | Sofineco - Soc Pour L'etude Et Le Financement D'entreprises Ind Et Commerciales | ROTATIONAL DRIVE SYSTEM FOR A ROLLING DRUM OF A FLEXIBLE HANDLE DOOR CURTAIN |
CA3080761C (en) | 2012-05-08 | 2022-06-14 | Schlage Lock Company Llc | Door closer system |
DE102013000416B4 (en) * | 2013-01-14 | 2016-10-06 | Dorma Deutschland Gmbh | Method for arranging a drive unit in a revolving door |
DE102013000423B3 (en) * | 2013-01-14 | 2014-03-13 | Dorma Gmbh & Co. Kg | Revolving door with a drive unit arranged on a glass ceiling element |
DE102013000419A1 (en) * | 2013-01-14 | 2014-07-17 | Dorma Gmbh & Co. Kg | Method for arranging a drive unit on a ceiling element of a revolving door |
US9890575B2 (en) | 2013-12-09 | 2018-02-13 | Viking Access Systems, Llc | Movable barrier operator with removable power supply module |
CN110469255A (en) * | 2019-09-10 | 2019-11-19 | 襄阳市思想机电科技有限公司 | A kind of secondary door reel of unilateral gate |
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US20220120045A1 (en) * | 2020-10-20 | 2022-04-21 | Vmag, Llc | System for Moving a Barrier with Warning Devices Thereon |
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Citations (77)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652124A (en) * | 1968-10-03 | 1972-03-28 | Fiat Ag | Actuating mechanism for a door of a vehicle, in particular a taxi |
US3658373A (en) * | 1970-12-08 | 1972-04-25 | Sola Basic Ind Inc | Heat treating basket |
US3799115A (en) * | 1973-01-08 | 1974-03-26 | H Baugh | Animal crowding gate |
US3878646A (en) * | 1974-01-25 | 1975-04-22 | Stanley Works | Drive linkage for swinging doors |
US4340799A (en) * | 1979-12-21 | 1982-07-20 | Matsushita Electric Industrial Co., Ltd. | Heating apparatus with voice actuated door opening mechanism |
US4420703A (en) * | 1977-12-19 | 1983-12-13 | Siemens Aktiengesellschaft | Permanent magnet motor driven window lifter |
US4450545A (en) * | 1981-03-11 | 1984-05-22 | Nissan Motor Co., Ltd. | Voice responsive door lock system for a motor vehicle |
US4501012A (en) * | 1980-11-17 | 1985-02-19 | Nissan Motor Company, Limited | Speech recognition system for an automotive vehicle |
US4556994A (en) * | 1983-01-20 | 1985-12-10 | Honda Giken Kogyo Kabushiki Kaisha | Fullface-type helmet |
US4673848A (en) * | 1984-12-29 | 1987-06-16 | Yoshida Kogyo K. K. | Control system for an automatic door |
US4684853A (en) * | 1985-08-13 | 1987-08-04 | Emhart Industries, Inc. | Garage door opener using transmitter with SAW oscillator modulator |
US4937855A (en) * | 1988-02-09 | 1990-06-26 | Viscount Industries Limited | Building security system |
US4986331A (en) * | 1988-04-08 | 1991-01-22 | Firma Johann Henkenjohann | Closure openable and closable by a drive for an aperture, such as a door or gate, comprising interhinged slats |
US5134350A (en) * | 1991-04-19 | 1992-07-28 | Mahoney John C | Door controller for mass transit vehicles |
US5384495A (en) * | 1991-02-01 | 1995-01-24 | Gmi Holdings, Inc. | Wiring error detector for door operator |
US5744896A (en) * | 1996-05-21 | 1998-04-28 | Visual Computing Systems Corp. | Interlocking segmented coil array |
US6025685A (en) * | 1997-06-11 | 2000-02-15 | Elite Access Systems, Inc. | Gate operator method and apparatus with self-adjustment at operating limits |
US6107765A (en) * | 1995-06-06 | 2000-08-22 | The Chamberlain Group, Inc. | Movable barrier operator having force and position learning capability |
US6137203A (en) * | 1997-12-12 | 2000-10-24 | New Generation Motors Corporation | Electric motor with active hysteresis-based control of winding currents and/or having an efficient stator winding arrangement and/or adjustable air gap |
US6161005A (en) * | 1998-08-10 | 2000-12-12 | Pinzon; Brian W. | Door locking/unlocking system utilizing direct and network communications |
US6239569B1 (en) * | 1998-09-28 | 2001-05-29 | The Chamberlain Group, Inc. | Movable barrier operator |
US6283531B1 (en) * | 2000-08-07 | 2001-09-04 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle including electric folding roof |
US20020067245A1 (en) * | 2000-06-20 | 2002-06-06 | Campbell Douglas C. | Voice Activated remote keyless entry fob |
US20030015889A1 (en) * | 2001-07-23 | 2003-01-23 | Klaus Stolle | Method for actuation of a convertible top |
US20030034750A1 (en) * | 2001-08-16 | 2003-02-20 | Hom Wayne C. | Method and apparatus for controlling security gate operation |
US6525659B2 (en) * | 1999-09-29 | 2003-02-25 | Refrigerator Manufactures, Inc. | Automatic sliding door system for refrigerator unit |
US6532038B1 (en) * | 1999-08-16 | 2003-03-11 | Joseph Edward Haring | Rail crossing video recorder and automated gate inspection |
US20030102751A1 (en) * | 2000-01-28 | 2003-06-05 | Bryant John Graham | Electric motor |
US6614200B2 (en) * | 2001-04-11 | 2003-09-02 | Meritor Light Vehicle Technology, Llc | AC motors for driving vehicle closures |
US6618993B2 (en) * | 2001-03-19 | 2003-09-16 | Thomas J. Burke | Railroad grade crossing assembly |
US6624400B2 (en) * | 1999-01-20 | 2003-09-23 | Samsung Electronics Co., Ltd. | Microwave oven with an apparatus for detecting life time of components thereof |
US20030197914A1 (en) * | 2001-12-21 | 2003-10-23 | Cox Hendrikus Herman Marie | Lithographic apparatus and device manufacturing method |
US6737823B2 (en) * | 2000-05-09 | 2004-05-18 | Overhead Door Corporation | Door operator control system and method |
US6750624B2 (en) * | 2001-10-17 | 2004-06-15 | Delphi Technologies, Inc. | Non-contact obstacle detection system utilizing ultra sensitive capacitive sensing |
US20040222913A1 (en) * | 2002-05-21 | 2004-11-11 | The Chamberlain Group, Inc. | Mounted remote control unit with plug-in module interface |
US20040239496A1 (en) * | 2003-05-29 | 2004-12-02 | The Chamberlain Group, Inc. | Movable barrier operators status condition transception apparatus and method |
US6832076B2 (en) * | 2002-02-11 | 2004-12-14 | The Chamberlain Group, Inc. | Audible diagnostic information apparatus and method |
US20050034374A1 (en) * | 2001-11-14 | 2005-02-17 | Ebbe Ulrik Vagn | Operator system and an aperture member comprising such a system |
US20050052080A1 (en) * | 2002-07-31 | 2005-03-10 | Maslov Boris A. | Adaptive electric car |
US6882715B2 (en) * | 2001-12-13 | 2005-04-19 | The Chamberlain Group, Inc. | Method and apparatus for communication with a gate entry controller and providing secure communication |
US6933843B1 (en) * | 2002-12-17 | 2005-08-23 | The Chamberlain Group, Inc. | Data storage module for a security system |
US20050213362A1 (en) * | 2004-03-17 | 2005-09-29 | Cambridge Silicon Radio Limited | Method for reading ROM cell |
US20050253731A1 (en) * | 2004-05-11 | 2005-11-17 | The Chamberlain Group, Inc. | Movable barrier operator system display method and apparatus |
US6966147B2 (en) * | 2004-03-09 | 2005-11-22 | Solowiej Henry E | Automatic pet door |
US20050258934A1 (en) * | 2004-05-21 | 2005-11-24 | Buck M S | Combined garage door and keyless entry fob |
US20050263099A1 (en) * | 2004-05-06 | 2005-12-01 | Gerig Duane A | Rising stimulation modification |
US20050288840A1 (en) * | 2004-06-29 | 2005-12-29 | Aisin Seiki Kabushiki Kaisha | Control apparatus for opening/closing body |
US6998977B2 (en) * | 2003-04-28 | 2006-02-14 | The Chamberlain Group, Inc. | Method and apparatus for monitoring a movable barrier over a network |
US7042183B2 (en) * | 2003-07-18 | 2006-05-09 | The Chamberlain Group, Inc. | Barrier movement operator speed control |
US7064505B2 (en) * | 2003-08-21 | 2006-06-20 | Fuji Electric System Co., Ltd. | Method and system for controlling vehicle door position having reduced power supply current requirements |
US7062879B2 (en) * | 2001-08-08 | 2006-06-20 | Federal Apd, Inc. | Security gate |
US7116072B1 (en) * | 2004-06-24 | 2006-10-03 | Wayne-Dalton Corp. | Motorized barrier operator system for setting a down force adjustment to a minimum value and method for programming the same |
US20060237150A1 (en) * | 2005-04-21 | 2006-10-26 | The Chamberlain Group, Inc. | Shaft coupling for barrier movement operators |
US7138912B2 (en) * | 2003-03-20 | 2006-11-21 | The Chamberlain Group, Inc. | Movable barrier operations method and apparatus |
US7170998B2 (en) * | 2000-10-26 | 2007-01-30 | Lochisle Inc. | Door access control and key management system and the method thereof |
US7170248B2 (en) * | 2004-01-21 | 2007-01-30 | Gallen Ka Leung Tsui | Systems and methods for operating a barrier |
US20070035074A1 (en) * | 2003-09-05 | 2007-02-15 | Vervoordeldonk Michael J | Actuator arrangement for active vibration isolation comprising an inertial reference mass |
US20070052946A1 (en) * | 2005-07-16 | 2007-03-08 | Integrated Dynamics Engineering Gmbh | Supporting device for supporting vibration sensitive components |
US7194412B2 (en) * | 2001-07-19 | 2007-03-20 | Overhead Door Corporation | Speech activated door operator system |
US7197278B2 (en) * | 2004-01-30 | 2007-03-27 | Lear Corporation | Method and system for communicating information between a vehicular hands-free telephone system and an external device using a garage door opener as a communications gateway |
US7208897B2 (en) * | 2005-03-04 | 2007-04-24 | Linear Corporation | Motion control system for barrier drive |
US20070093943A1 (en) * | 2005-06-01 | 2007-04-26 | Scott Nelson | System and method for remote convenience vehicle telematics |
US20070146675A1 (en) * | 2005-12-22 | 2007-06-28 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
US20070188724A1 (en) * | 2006-02-14 | 2007-08-16 | Asml Netherlands B.V. | Lithographic apparatus and stage apparatus |
US7264417B1 (en) * | 2006-03-23 | 2007-09-04 | Nasatka Barrier, Inc. | Vehicle barrier system, and related method |
US20070222401A1 (en) * | 2003-10-31 | 2007-09-27 | Massachusetts Institute Of Technology | Variable reluctance fast positioning system and methods |
US20080047200A1 (en) * | 2006-08-28 | 2008-02-28 | Siemens Aktiengesellschaft | Door drive for an automatic door |
US20080061948A1 (en) * | 2006-08-18 | 2008-03-13 | Daniel Perez | System and method for communicating with gate operators via a power line |
US20080094186A1 (en) * | 2006-10-04 | 2008-04-24 | Viking Access Systems, Llc | Apparatus and method for monitoring and controlling gate operators via power line communication |
US20080106370A1 (en) * | 2006-11-02 | 2008-05-08 | Viking Access Systems, Llc | System and method for speech-recognition facilitated communication to monitor and control access to premises |
US20080131099A1 (en) * | 2006-12-05 | 2008-06-05 | Lincoln Global, Inc. | Electric motor controller with brush position detector |
US7436141B2 (en) * | 2006-10-26 | 2008-10-14 | Viking Access Systems, Llc. | Movable barrier operator with travel limit adjustment capabilities |
US20090085719A1 (en) * | 2007-09-28 | 2009-04-02 | Daniel Perez | System and method for monitoring and controlling a movable barrier operator utilizing satellite communication capabilities |
US20090188166A1 (en) * | 2008-01-24 | 2009-07-30 | Hassan Taheri | System for gearless operation of a movable barrier utilizing lorentz forces |
US20090309450A1 (en) * | 2006-07-07 | 2009-12-17 | Kuhlmann-Wilsdorf Motors Llc | Mp-d machines |
US7677636B2 (en) * | 2007-01-30 | 2010-03-16 | Volkswagen Aktiengesellschaft | Method for controlling a power-operated vehicle accessory, in particular a power-operated folding hardtop roof |
US7795773B1 (en) * | 2004-07-02 | 2010-09-14 | Michael Wittig | Electric actuator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4630395A (en) | 1985-07-29 | 1986-12-23 | Nasatka Ralph G | Portable vehicle barricade or portable maximum security barrier |
JP2007502095A (en) * | 2003-08-04 | 2007-02-01 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Lorentz motor control system for payload |
-
2008
- 2008-01-24 US US12/019,305 patent/US7816875B2/en active Active
-
2010
- 2010-09-01 US US12/873,928 patent/US20100319263A1/en not_active Abandoned
Patent Citations (84)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652124A (en) * | 1968-10-03 | 1972-03-28 | Fiat Ag | Actuating mechanism for a door of a vehicle, in particular a taxi |
US3658373A (en) * | 1970-12-08 | 1972-04-25 | Sola Basic Ind Inc | Heat treating basket |
US3799115A (en) * | 1973-01-08 | 1974-03-26 | H Baugh | Animal crowding gate |
US3878646A (en) * | 1974-01-25 | 1975-04-22 | Stanley Works | Drive linkage for swinging doors |
US4420703A (en) * | 1977-12-19 | 1983-12-13 | Siemens Aktiengesellschaft | Permanent magnet motor driven window lifter |
US4340799A (en) * | 1979-12-21 | 1982-07-20 | Matsushita Electric Industrial Co., Ltd. | Heating apparatus with voice actuated door opening mechanism |
US4501012A (en) * | 1980-11-17 | 1985-02-19 | Nissan Motor Company, Limited | Speech recognition system for an automotive vehicle |
US4450545A (en) * | 1981-03-11 | 1984-05-22 | Nissan Motor Co., Ltd. | Voice responsive door lock system for a motor vehicle |
US4556994A (en) * | 1983-01-20 | 1985-12-10 | Honda Giken Kogyo Kabushiki Kaisha | Fullface-type helmet |
US4673848A (en) * | 1984-12-29 | 1987-06-16 | Yoshida Kogyo K. K. | Control system for an automatic door |
US4684853A (en) * | 1985-08-13 | 1987-08-04 | Emhart Industries, Inc. | Garage door opener using transmitter with SAW oscillator modulator |
US4937855A (en) * | 1988-02-09 | 1990-06-26 | Viscount Industries Limited | Building security system |
US4986331A (en) * | 1988-04-08 | 1991-01-22 | Firma Johann Henkenjohann | Closure openable and closable by a drive for an aperture, such as a door or gate, comprising interhinged slats |
US5384495A (en) * | 1991-02-01 | 1995-01-24 | Gmi Holdings, Inc. | Wiring error detector for door operator |
US5134350A (en) * | 1991-04-19 | 1992-07-28 | Mahoney John C | Door controller for mass transit vehicles |
US6340872B1 (en) * | 1995-06-06 | 2002-01-22 | The Chamberlain Group, Inc. | Movable barrier operator having force and position learning capability |
US6107765A (en) * | 1995-06-06 | 2000-08-22 | The Chamberlain Group, Inc. | Movable barrier operator having force and position learning capability |
US6111374A (en) * | 1995-06-06 | 2000-08-29 | The Chamberlain Group, Inc. | Movable barrier operator having force and position learning capability |
US20030025470A1 (en) * | 1995-06-06 | 2003-02-06 | The Chamberlain Group, Inc. | Movable barrier operator having force and position learning capability |
US6310451B1 (en) * | 1995-06-06 | 2001-10-30 | The Chamberlain Group, Inc. | Movable barrier operator having force and position learning capability |
US5744896A (en) * | 1996-05-21 | 1998-04-28 | Visual Computing Systems Corp. | Interlocking segmented coil array |
US6025685A (en) * | 1997-06-11 | 2000-02-15 | Elite Access Systems, Inc. | Gate operator method and apparatus with self-adjustment at operating limits |
US6137203A (en) * | 1997-12-12 | 2000-10-24 | New Generation Motors Corporation | Electric motor with active hysteresis-based control of winding currents and/or having an efficient stator winding arrangement and/or adjustable air gap |
US6161005A (en) * | 1998-08-10 | 2000-12-12 | Pinzon; Brian W. | Door locking/unlocking system utilizing direct and network communications |
US6239569B1 (en) * | 1998-09-28 | 2001-05-29 | The Chamberlain Group, Inc. | Movable barrier operator |
US6624400B2 (en) * | 1999-01-20 | 2003-09-23 | Samsung Electronics Co., Ltd. | Microwave oven with an apparatus for detecting life time of components thereof |
US6532038B1 (en) * | 1999-08-16 | 2003-03-11 | Joseph Edward Haring | Rail crossing video recorder and automated gate inspection |
US6525659B2 (en) * | 1999-09-29 | 2003-02-25 | Refrigerator Manufactures, Inc. | Automatic sliding door system for refrigerator unit |
US6909215B2 (en) * | 2000-01-28 | 2005-06-21 | John Graham Bryant | Electric motor |
US20030102751A1 (en) * | 2000-01-28 | 2003-06-05 | Bryant John Graham | Electric motor |
US6737823B2 (en) * | 2000-05-09 | 2004-05-18 | Overhead Door Corporation | Door operator control system and method |
US20020067245A1 (en) * | 2000-06-20 | 2002-06-06 | Campbell Douglas C. | Voice Activated remote keyless entry fob |
US6283531B1 (en) * | 2000-08-07 | 2001-09-04 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle including electric folding roof |
US7170998B2 (en) * | 2000-10-26 | 2007-01-30 | Lochisle Inc. | Door access control and key management system and the method thereof |
US6618993B2 (en) * | 2001-03-19 | 2003-09-16 | Thomas J. Burke | Railroad grade crossing assembly |
US6614200B2 (en) * | 2001-04-11 | 2003-09-02 | Meritor Light Vehicle Technology, Llc | AC motors for driving vehicle closures |
US7194412B2 (en) * | 2001-07-19 | 2007-03-20 | Overhead Door Corporation | Speech activated door operator system |
US20030015889A1 (en) * | 2001-07-23 | 2003-01-23 | Klaus Stolle | Method for actuation of a convertible top |
US7062879B2 (en) * | 2001-08-08 | 2006-06-20 | Federal Apd, Inc. | Security gate |
US20030034750A1 (en) * | 2001-08-16 | 2003-02-20 | Hom Wayne C. | Method and apparatus for controlling security gate operation |
US6750624B2 (en) * | 2001-10-17 | 2004-06-15 | Delphi Technologies, Inc. | Non-contact obstacle detection system utilizing ultra sensitive capacitive sensing |
US20050034374A1 (en) * | 2001-11-14 | 2005-02-17 | Ebbe Ulrik Vagn | Operator system and an aperture member comprising such a system |
US6882715B2 (en) * | 2001-12-13 | 2005-04-19 | The Chamberlain Group, Inc. | Method and apparatus for communication with a gate entry controller and providing secure communication |
US20030197914A1 (en) * | 2001-12-21 | 2003-10-23 | Cox Hendrikus Herman Marie | Lithographic apparatus and device manufacturing method |
US6788386B2 (en) * | 2001-12-21 | 2004-09-07 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
US6832076B2 (en) * | 2002-02-11 | 2004-12-14 | The Chamberlain Group, Inc. | Audible diagnostic information apparatus and method |
US20040222913A1 (en) * | 2002-05-21 | 2004-11-11 | The Chamberlain Group, Inc. | Mounted remote control unit with plug-in module interface |
US7057547B2 (en) * | 2002-05-21 | 2006-06-06 | The Chamberlain Group, Inc. | Mounted remote control unit with plug-in module interface |
US20050052080A1 (en) * | 2002-07-31 | 2005-03-10 | Maslov Boris A. | Adaptive electric car |
US6933843B1 (en) * | 2002-12-17 | 2005-08-23 | The Chamberlain Group, Inc. | Data storage module for a security system |
US7138912B2 (en) * | 2003-03-20 | 2006-11-21 | The Chamberlain Group, Inc. | Movable barrier operations method and apparatus |
US6998977B2 (en) * | 2003-04-28 | 2006-02-14 | The Chamberlain Group, Inc. | Method and apparatus for monitoring a movable barrier over a network |
US20040239496A1 (en) * | 2003-05-29 | 2004-12-02 | The Chamberlain Group, Inc. | Movable barrier operators status condition transception apparatus and method |
US7042183B2 (en) * | 2003-07-18 | 2006-05-09 | The Chamberlain Group, Inc. | Barrier movement operator speed control |
US7064505B2 (en) * | 2003-08-21 | 2006-06-20 | Fuji Electric System Co., Ltd. | Method and system for controlling vehicle door position having reduced power supply current requirements |
US20070035074A1 (en) * | 2003-09-05 | 2007-02-15 | Vervoordeldonk Michael J | Actuator arrangement for active vibration isolation comprising an inertial reference mass |
US20070222401A1 (en) * | 2003-10-31 | 2007-09-27 | Massachusetts Institute Of Technology | Variable reluctance fast positioning system and methods |
US7170248B2 (en) * | 2004-01-21 | 2007-01-30 | Gallen Ka Leung Tsui | Systems and methods for operating a barrier |
US7197278B2 (en) * | 2004-01-30 | 2007-03-27 | Lear Corporation | Method and system for communicating information between a vehicular hands-free telephone system and an external device using a garage door opener as a communications gateway |
US6966147B2 (en) * | 2004-03-09 | 2005-11-22 | Solowiej Henry E | Automatic pet door |
US20050213362A1 (en) * | 2004-03-17 | 2005-09-29 | Cambridge Silicon Radio Limited | Method for reading ROM cell |
US20050263099A1 (en) * | 2004-05-06 | 2005-12-01 | Gerig Duane A | Rising stimulation modification |
US20050253731A1 (en) * | 2004-05-11 | 2005-11-17 | The Chamberlain Group, Inc. | Movable barrier operator system display method and apparatus |
US20050258934A1 (en) * | 2004-05-21 | 2005-11-24 | Buck M S | Combined garage door and keyless entry fob |
US7116072B1 (en) * | 2004-06-24 | 2006-10-03 | Wayne-Dalton Corp. | Motorized barrier operator system for setting a down force adjustment to a minimum value and method for programming the same |
US20050288840A1 (en) * | 2004-06-29 | 2005-12-29 | Aisin Seiki Kabushiki Kaisha | Control apparatus for opening/closing body |
US7795773B1 (en) * | 2004-07-02 | 2010-09-14 | Michael Wittig | Electric actuator |
US7208897B2 (en) * | 2005-03-04 | 2007-04-24 | Linear Corporation | Motion control system for barrier drive |
US20060237150A1 (en) * | 2005-04-21 | 2006-10-26 | The Chamberlain Group, Inc. | Shaft coupling for barrier movement operators |
US20070093943A1 (en) * | 2005-06-01 | 2007-04-26 | Scott Nelson | System and method for remote convenience vehicle telematics |
US20070052946A1 (en) * | 2005-07-16 | 2007-03-08 | Integrated Dynamics Engineering Gmbh | Supporting device for supporting vibration sensitive components |
US20070146675A1 (en) * | 2005-12-22 | 2007-06-28 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
US20070188724A1 (en) * | 2006-02-14 | 2007-08-16 | Asml Netherlands B.V. | Lithographic apparatus and stage apparatus |
US7264417B1 (en) * | 2006-03-23 | 2007-09-04 | Nasatka Barrier, Inc. | Vehicle barrier system, and related method |
US20090309450A1 (en) * | 2006-07-07 | 2009-12-17 | Kuhlmann-Wilsdorf Motors Llc | Mp-d machines |
US20080061948A1 (en) * | 2006-08-18 | 2008-03-13 | Daniel Perez | System and method for communicating with gate operators via a power line |
US20080047200A1 (en) * | 2006-08-28 | 2008-02-28 | Siemens Aktiengesellschaft | Door drive for an automatic door |
US20080094186A1 (en) * | 2006-10-04 | 2008-04-24 | Viking Access Systems, Llc | Apparatus and method for monitoring and controlling gate operators via power line communication |
US7436141B2 (en) * | 2006-10-26 | 2008-10-14 | Viking Access Systems, Llc. | Movable barrier operator with travel limit adjustment capabilities |
US20080106370A1 (en) * | 2006-11-02 | 2008-05-08 | Viking Access Systems, Llc | System and method for speech-recognition facilitated communication to monitor and control access to premises |
US20080131099A1 (en) * | 2006-12-05 | 2008-06-05 | Lincoln Global, Inc. | Electric motor controller with brush position detector |
US7677636B2 (en) * | 2007-01-30 | 2010-03-16 | Volkswagen Aktiengesellschaft | Method for controlling a power-operated vehicle accessory, in particular a power-operated folding hardtop roof |
US20090085719A1 (en) * | 2007-09-28 | 2009-04-02 | Daniel Perez | System and method for monitoring and controlling a movable barrier operator utilizing satellite communication capabilities |
US20090188166A1 (en) * | 2008-01-24 | 2009-07-30 | Hassan Taheri | System for gearless operation of a movable barrier utilizing lorentz forces |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220162898A1 (en) * | 2019-04-02 | 2022-05-26 | Wheel.Me As | Drive unit for moving a door |
US11795752B2 (en) * | 2019-04-02 | 2023-10-24 | Wheel.Me As | Drive unit for moving a door |
Also Published As
Publication number | Publication date |
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US20090189560A1 (en) | 2009-07-30 |
US7816875B2 (en) | 2010-10-19 |
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Legal Events
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AS | Assignment |
Owner name: VIKING ACCESS SYSTEMS, LLC, CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAHERI, HASSAN;BECERRA, JONATHAN;REEL/FRAME:025222/0116 Effective date: 20101026 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |