US20040261317A1 - Method and device for adjusting an internal obstruction force setting for a motorized garage door operator - Google Patents

Method and device for adjusting an internal obstruction force setting for a motorized garage door operator Download PDF

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Publication number
US20040261317A1
US20040261317A1 US10888685 US88868504A US2004261317A1 US 20040261317 A1 US20040261317 A1 US 20040261317A1 US 10888685 US10888685 US 10888685 US 88868504 A US88868504 A US 88868504A US 2004261317 A1 US2004261317 A1 US 2004261317A1
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Patent type
Prior art keywords
door
operator
force
entrapment
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10888685
Inventor
James Murray
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Wayne-Dalton Corp
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Wayne-Dalton Corp
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/40Safety devices, e.g. detection of obstructions or end positions
    • E05F15/41Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/665Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/668Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/40Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42Detection using safety edges
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2400/00Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/52Safety arrangements
    • E05Y2400/53Wing impact prevention or reduction
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2400/00Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/52Safety arrangements
    • E05Y2400/53Wing impact prevention or reduction
    • E05Y2400/54Obstruction or resistance detection
    • E05Y2400/55Obstruction or resistance detection by using load sensors
    • E05Y2400/554Obstruction or resistance detection by using load sensors sensing motor load
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2400/00Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/52Safety arrangements
    • E05Y2400/53Wing impact prevention or reduction
    • E05Y2400/54Obstruction or resistance detection
    • E05Y2400/58Sensitivity setting or adjustment
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2400/00Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/80User interfaces
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20Combinations of elements
    • E05Y2800/246Combinations of elements with at least one element being redundant
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Abstract

An operator and related method for adjusting an internal force setting for a motorized garage door operator is disclosed. The operator checks for the presence of a secondary entrapment safety feature and automatically increases a force threshold setting from a first value to a second value if the secondary entrapment safety feature is detected. If the safety feature is not detected or it is later disconnected, then the operator automatically sets the force threshold to a more sensitive value.

Description

    TECHNICAL FIELD
  • [0001]
    Generally, the present invention relates to a garage door operator system for use on a closure member moveable relative to a fixed member. More particularly, the present invention relates to an operator-controlled motor for controlling the operation of a closure member, such as a gate or door, between a closed position and an open position. More specifically, the present invention relates to a door or gate operator, wherein the operator automatically adjusts a force threshold depending upon whether an external secondary entrapment device is connected to the operator.
  • BACKGROUND ART
  • [0002]
    For convenience purposes, it is well known to provide garage doors which utilize a motor to provide opening and closing movements of the door. Motors may also be coupled with other types of movable barriers such as gates, windows, retractable overhangs and the like. An operator is employed to control the motor and related functions with respect to the door. The operator receives command signals for the purpose of opening and closing the door from a wireless remote, from a wired wall station or other similar device. It is also known to provide safety devices that are connected to the operator for the purpose of detecting an obstruction so that the operator may then take corrective action with the motor to avoid entrapment of the obstruction.
  • [0003]
    Safety devices come in many forms for use with a garage door operator. One of the more widely used devices is a photoelectric eye which projects a light beam across the door's travel path. If the light beam is interrupted during closure of the door, the operator stops and/or stops and reverses the travel of the door. This is sometimes referred to as a non-contacting or an external secondary entrapment device. Contact type safety devices such as an edge-sensitive pressure switch, which is attached to the bottom edge of the door and runs the complete width of the door, may also be used. Other contact safety devices directly monitor the operating characteristics of the driving motor to determine whether an obstruction is present. Typically, shaft speed of the motor is monitored by projecting an infrared light through an interrupter wheel. Alternatively, Hall effect switches or tachometers can be used to monitor shaft speed. Or, the motor current could be monitored such that when an excessive amount of current is drawn by the motor—which indicates that the motor is working harder than normal—it is presumed that an obstruction has been encountered. It is also known to monitor door speed with a sliding potentiometer, wherein a rate of change is equated to the speed of the door and wherein unexpected slowing of the door triggers corrective action by the operator. Regardless of how the safety devices work, their purpose is to ensure that individuals, especially children, are not entrapped by a closing door. Opening forces of the door are also monitored to preclude damage to the operating system for instances where an object or individual is caught upon a door panel as the door moves upwardly.
  • [0004]
    How safety devices are used with a door operator system have evolved from the days of no uniform standard to the currently applied government regulations as embodied in Underwriters Laboratories Standard 325. The standard requires that when an operator is mounted to a pinch-resistant door and an external secondary entrapment device is not connected to the operator, that a fifteen pound obstruction force threshold setting must be used. In other words, if no external secondary entrapment device is attached to the operator then the maximum force that the motor is allowed to apply to the door—in a closing direction—is fifteen pounds. But, if an external secondary entrapment device is attached, then the UL standard does not require a maximum obstruction force setting.
  • [0005]
    If the end-user selects an operator model without the external secondary entrapment feature, then an input jumper switch is set to disable and the fifteen pound force threshold is used during barrier movement. If the end-user selects an operator model with the external secondary entrapment feature, then the input jumper is permanently enabled and the force threshold value is set at a higher value, typically twenty-five pounds. If the end-user desires to later add the external secondary entrapment feature, then the jumper must be physically moved from a disabled position to an enabled position. If the jumper is not moved to an enabled position then the external secondary entrapment feature will work, but the force threshold remains at fifteen pounds. It has been found that the fifteen pound threshold is quite sensitive and as a result phantom obstructions are encountered. In other words, the operator falsely detects and reacts to a non-existent obstruction in the barrier's path. Such false detections may be the result of the wind, temperature, debris in the door track and the like. These false detections cause the barrier to reverse direction and require the user to wait unnecessarily for the barrier to complete its opening or closing cycle. In any event, there is a need in the art to simplify the later installation of a secondary entrapment feature to an existing operator.
  • DISCLOSURE OF INVENTION
  • [0006]
    It is thus an object of the present invention to provide a method and device for adjusting an internal obstruction force setting for a motorized garage door operator.
  • [0007]
    In general, the present invention contemplates a method for adjusting an internal force setting for a motorized garage door operator comprising checking for the presence of an external secondary entrapment safety feature and increasing a force threshold setting from a first value to a second value if the external secondary entrapment safety feature is detected.
  • [0008]
    The invention contemplates a method for adjusting an internal force setting for a motorized garage door operator, comprising checking for the presence of an external secondary entrapment safety feature, and decreasing a force threshold setting from a first value to a second value if the external secondary entrapment safety feature is not detected.
  • [0009]
    The invention further contemplates an operator system for controlling the operation of a movable barrier comprising a motor for moving the barrier between open and closed positions, an operator for controlling the operation of said motor so that said motor applies a force within a threshold of force value, and a controller carried by said operator for detecting the presence of an external safety device and adjusting said threshold of force value accordingly.
  • [0010]
    These and other objects of the present invention, as well as the advantages thereof over existing prior art forms, which will become apparent from the description to follow, are accomplished by the improvements hereinafter described and claimed.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0011]
    For a complete understanding of the objects, techniques and structure of the invention, reference should be made to the following detailed description and accompanying drawings, wherein:
  • [0012]
    [0012]FIG. 1 is a fragmentary perspective view depicting a sectional garage door and showing an operating mechanism embodying the concepts of the present invention;
  • [0013]
    [0013]FIG. 2 is a schematic diagram of an operator mechanism; and
  • [0014]
    [0014]FIG. 3 is an operational flow chart employed by operator of the present invention for adjusting the force setting.
  • BEST MODE FOR CARRYING OUT THE INVENTION
  • [0015]
    A system and related method for adjusting an internal obstruction force setting for a motorized garage door operator is generally indicated by the numeral 10 in FIG. 1 of the drawings. The system 110 is employed in conjunction with a conventional sectional garage door generally indicated by the numeral 12. The door 12 is most likely an anti-pinch type door. The opening in which the door is positioned for opening and closing movements relative thereto is surrounded by a frame, generally indicated by the numeral 14, which consists of a pair of a vertically spaced jamb members 16 that, as seen in FIG. 1, are generally parallel and extend vertically upwardly from the ground (not shown). The jambs 16 are spaced and joined at their vertically upper extremity by a header 18 to thereby form a generally u-shaped frame 14 around the opening for the door 12. The frame 14 is normally constructed of lumber or other structural building materials for the purpose of reinforcement and to facilitate the attachment of elements supporting and controlling the door 12.
  • [0016]
    Secured to the jambs 16 are L-shaped vertical members 20 which have a leg 22 attached to the jambs 16 and a projecting leg 24 which perpendicularly extends from respective legs 22. The L-shaped vertical members 20 may also be provided in other shapes depending upon the particular frame and garage door with which it is associated. Secured to each projecting leg 24 is a track 26 which extends perpendicularly from each projecting leg 24. Each track 26 receives a roller 28 which extends from the top edge of the garage door 12. Additional rollers 28 may also be provided on each top vertical edge of each section of the garage door to facilitate transfer between opening and closing positions.
  • [0017]
    A counterbalancing system generally indicated by the numeral 30 may be employed to move the garage door 12 back and forth between opening and closing positions. One example of a counterbalancing system is disclosed in U.S. Pat. No. 5,419,010, which is incorporated herein by reference. Generally, the counter-balancing system 30 includes a housing 32, which is affixed to the header 18 which contains an operator mechanism 30 generally indicated by the numeral 34 as seen in FIG. 2. Extending from each end of the operator mechanism 34 is a drive shaft 36, the opposite ends of which are received by tensioning assemblies 38 that are affixed to respective projecting legs 24. Carried within the drive shaft 36 are counterbalance springs as described in the '010 patent. Although a header-mounted operator is specifically discussed herein, the control features to be discussed later are equally applicable to other types of operators used with movable barriers. The teachings of the present invention are equally applicable to other types of movable barriers such as single panel doors, gates, windows, retractable overhangs, and any device that at least partially encloses an area.
  • [0018]
    In order to move the door from an open position to a closed position or vice versa, a remote transmitter 40 or a wall station transmitter 42 may be actuated. The remote transmitter 40 may use infrared, acoustic or radio frequency signals that are received by the operator mechanism to initiate movement of the door. Likewise, the wall station 42 may perform the same functions as the remote transmitter 40 and also provide additional functions such as the illumination of lights and provide other programming functions to control the manner in which the garage door works. The wall station 42 may either be connected directly to the operator mechanism 34 by a wire or it may employ radio frequency or infrared signals.
  • [0019]
    An external secondary entrapment system, which is designated generally by the numeral 50, may be included with the system 10. In the preferred embodiment, the entrapment system 50 is a photoelectric sensor which has a sending device 52 and a receiving device 54. The sending device 52 is mounted to either the jamb 16 or the track 26 near the floor of the door area. The devices 52 and 54 are mounted at about 5 inches above the floor and on the inside of the door opening to minimize any interference by the sun. It will be appreciated that the position of the devices 52 and 54 may be switched if needed. In any event, the sending device 52 emits a light beam, either laser or infrared, that is detected by the receiver 54 which is connected to the operator mechanism 34. If an object interrupts the light beam during door travel, the receiver relays this information to the controller which initiates the appropriate corrective action. In this way, if an object interrupts a light beam during a downward motion of the garage door the motion of the door is at least stopped and/or returned to the opening position. It will be appreciated that other external secondary entrapment features or systems such as a contact-type safety edge on the bottom panel of the door, motor speed detectors, shaft speed detectors, motor current detectors, door speed monitors or the like may be used with the present invention.
  • [0020]
    Referring now to FIG. 2, it can be seen that the operator mechanism employs a controller 58 which receives power from batteries or some other appropriate power supply. The controller 58 includes the necessary hardware, software, and a memory device 60 to implement operation of the operator 34. When either a remote transmitter 40 or wall station 42 is actuated, a receiver 64 receives the signal and converts it into a form useable by the controller 58. If a valid signal is received by the controller 58, it initiates movement of the motor 62 which, in turn, generates rotatable movement of the drive shaft 36 and the door is driven in the appropriate direction. The external secondary entrapment system 50, particularly the sending and receiving units 52, 54, are also connected to the controller 58 to provide appropriate input.
  • [0021]
    Referring now to FIG. 3, a flow chart, designated generally by the numeral 100 is representative of the software embodied and contained within the controller for controlling operation of the operator. At step 102, the operator is installed and if desired, the external secondary entrapment system is also installed. As noted previously, the external secondary entrapment system 50 is not required for operation of the operator 34. And, if the operator is installed without the external secondary entrapment system, the controller 58 limits the power applied to the motor 62 to a threshold of about fifteen pounds. In other words, the controller with the use of various force sensors and the like, is able to determine the amount of force applied by the motor at any instant during travel of the door from an open position to a closed position or vice versa. From this base line application of force, the controller knows to allow application of fifteen pounds more or fifteen pounds less to the base line force profile. Accordingly, if an obstruction is detected which is greater than fifteen pounds or less than fifteen pounds from the force profile, the controller 58 takes the appropriate corrective action.
  • [0022]
    At step 106, the controller 58 determines whether an external secondary entrapment system such as the photoelectric sensor 50 has been attached to the operator mechanism 34. If not, then at step 108, the lower threshold value, which in the preferred embodiment is fifteen pounds, is set and implemented. Accordingly, at step 112, the system is operational and the appropriate functions are performed. It will be appreciated that at step 112 the controller 58 monitors to determine whether the external secondary system is still connected to the operator by returning to the decision step 106. If at step 106 the controller determines that the external secondary entrapment system is connected, then at step 116 a higher threshold level is set which, in the preferred embodiment is twenty-five pounds. In other words, the motor is allowed to deviate twenty-five pounds plus or minus from the operational force profile set by the controller 58. Once this higher threshold is set, then at step 112 the controller proceeds with its normal operation. The methodology then returns to step 106 to check to ensure that the external secondary entrapment system is still attached. If, for some reason, the sensor is rendered inoperative and not detected, then the lower force threshold profile is used.
  • [0023]
    From the description above, it will be appreciated that an operator system may be used which allows the force threshold setting to be automatically changed, depending upon the type of external secondary entrapment systems associated with the operator. If an external secondary entrapment feature is not attached to the operator, then a minimal force threshold is set and provides the most sensitivity for detecting obstructions that impede with travel of the door. And the system also provides that if an external secondary entrapment system is attached to the operator then the threshold can be set at a higher level to reduce the occurrence of phantom detections. By automatically detecting the presence or absence of the external secondary entrapment system, the user is not physically required to move a jumper or attach a jumper when installing the safety feature. This avoids aggravation on the part of the installer when installing the entrapment system and on the part of the user for eliminating false detections of obstructions.
  • [0024]
    Thus, it should be evident that the method and device for increasing the allowed motor power of a motorized garage door operator disclosed herein carries out the various objects of the present invention set forth above and otherwise constitutes an advantageous contribution to the art. As will be apparent to persons skilled in the art, modifications can be made to the preferred embodiments disclosed herein without departing from the spirit of the invention. Therefore, the scope of the invention herein described shall be limited solely by the scope of the attached claims.

Claims (8)

  1. 1-23. (canceled)
  2. 24. A method for adjusting an internal force thresholdsetting for a motorized garage door operator, the method comprising:
    establishing a base line force application value applied by a motor to move a door between limit positions;
    storing in a controller maintained by the garage door operator said base line force application value;
    setting a threshold to a default value in said controller;
    checking for connection of an entrapment safety feature to said controller;
    increasing said threshold value in said controller a predetermined amount if said entrapment safety device is connected to said controller;
    determining the amount of force applied by the motor by force sensors other than the motor during movement of the door; and
    implementing corrective action by said controller if the amount of force actually applied by the motor is greater or less than said base line force application value and said threshold value.
  3. 25. The method according to claim 24, further comprising:
    periodically checking for the presence of said entrapment safety feature; and
    setting said threshold to said default value in said controller if said entrapment safety feature is not connected to said controller.
  4. 26. The method according to claim 25, further comprising:
    setting said default value to about fifteen pounds.
  5. 27. The method according to claim 25, further comprising;
    setting said predetermined amount to about ten pounds so that said threshold value is about twenty-five pounds.
  6. 28. The method according to claim 24, further comprising:
    taking corrective action by said controller depending upon force applied by said motor at any instant of door travel.
  7. 29. An operator system for controlling the operation of a movable barrier, comprising:
    a motor that applies force to move the barrier between open and closed positions;
    at least one sensor associated with said motor for determining a base line application of force applied by said motor to the barrier; and
    a controller connected to said motor to control operation of said motor and to said at least one force sensor, said controller monitoring the force applied by said motor as detected by said at least one force sensor and allowing only said base line application of force and a threshold value to be applied by said motor to the barrier, said controller initiating corrective action through said motor if said base line application of force and said threshold value is exceeded as detected by said at least one force sensor;
    said controller periodically checking for the presence of a safety device and adjusting said threshold value if said safety device is detected.
  8. 30. The system according to claim 29, wherein said controller returns to said initial threshold value if said safety device is disconnected from said controller.
US10888685 2002-05-10 2004-07-08 Method and device for adjusting an internal obstruction force setting for a motorized garage door operator Abandoned US20040261317A1 (en)

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US10142642 US6873127B2 (en) 2002-05-10 2002-05-10 Method and device for adjusting an internal obstruction force setting for a motorized garage door operator
US10888685 US20040261317A1 (en) 2002-05-10 2004-07-08 Method and device for adjusting an internal obstruction force setting for a motorized garage door operator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10888685 US20040261317A1 (en) 2002-05-10 2004-07-08 Method and device for adjusting an internal obstruction force setting for a motorized garage door operator

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US10142642 Continuation US6873127B2 (en) 2002-05-10 2002-05-10 Method and device for adjusting an internal obstruction force setting for a motorized garage door operator

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US20040261317A1 true true US20040261317A1 (en) 2004-12-30

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US10888685 Abandoned US20040261317A1 (en) 2002-05-10 2004-07-08 Method and device for adjusting an internal obstruction force setting for a motorized garage door operator
US11063671 Expired - Fee Related US7075256B2 (en) 2002-05-10 2005-02-22 Method and device for adjusting an internal obstruction force setting for a motorized garage door operator

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EP (1) EP1504167B1 (en)
JP (1) JP2005525489A (en)
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US20050285553A1 (en) * 2004-06-24 2005-12-29 The Chamberlain Group, Inc. System and method for adapting to barrier nuisances and obstructions
US7034486B1 (en) 2004-12-06 2006-04-25 Overhead Door Corporation Barrier operator controller with user adjustable force setpoint
US7034487B1 (en) 2005-06-30 2006-04-25 Overhead Door Corporation Barrier operator controller with user settable control limits when entrapment device present
GB2426788A (en) * 2005-06-01 2006-12-06 Chamberlain Group Inc System and method for automatically requiring secondary safety sensors
US20070262739A1 (en) * 2006-03-15 2007-11-15 Anderson Troy A Vertically-mounted garage door operator
US20120174483A1 (en) * 2011-01-07 2012-07-12 Linear Llc Obstruction Detector Power Control
US8493081B2 (en) 2009-12-08 2013-07-23 Magna Closures Inc. Wide activation angle pinch sensor section and sensor hook-on attachment principle
US20140173984A1 (en) * 2011-08-30 2014-06-26 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Method and device for monitoring a drive unit, especially of a window lifter, comprising a rotating drive motor
US9051768B2 (en) 2011-05-24 2015-06-09 Overhead Door Corporation Force profiling barrier operator systems
US9234979B2 (en) 2009-12-08 2016-01-12 Magna Closures Inc. Wide activation angle pinch sensor section

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US6873127B2 (en) * 2002-05-10 2005-03-29 Wayne-Dalton Corp. Method and device for adjusting an internal obstruction force setting for a motorized garage door operator
US6870334B2 (en) * 2002-12-31 2005-03-22 The Chamberlain Group, Inc. Movable barrier operator auto-force setting method and apparatus
US7138912B2 (en) * 2003-03-20 2006-11-21 The Chamberlain Group, Inc. Movable barrier operations method and apparatus
US6989767B2 (en) 2003-05-29 2006-01-24 The Chamberlain Group, Inc. Obstacle detector-responsive movable barrier operator apparatus and method
US6940240B2 (en) * 2003-05-29 2005-09-06 The Chamberlain Group, Inc. Movable barrier operator multi-technique excess force avoidance apparatus and method
US7109677B1 (en) * 2004-05-07 2006-09-19 Wayne-Dalton Corp. Motorized barrier operator system for controlling a barrier after an obstruction detection and related methods
US8040217B2 (en) 2005-02-15 2011-10-18 The Chamberlain Group, Inc. Barrier movement operator communications
US7525265B2 (en) * 2005-04-20 2009-04-28 The Chamberlain Group, Inc. Drive motor reversal for a barrier operator or the like
US7576502B2 (en) * 2005-07-28 2009-08-18 Arvinmeritor Light Vehicle Systems - France Method and apparatus for closing a powered closure of a vehicle
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US20030210005A1 (en) 2003-11-13 application
WO2003095779A1 (en) 2003-11-20 application
CA2483539A1 (en) 2003-11-20 application
CA2483539C (en) 2009-09-22 grant
EP1504167B1 (en) 2006-10-25 grant
CN1650086A (en) 2005-08-03 application
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US6873127B2 (en) 2005-03-29 grant
US7075256B2 (en) 2006-07-11 grant
US20050146298A1 (en) 2005-07-07 application

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