US20010035308A1 - Electric-powered Scooter - Google Patents
Electric-powered Scooter Download PDFInfo
- Publication number
- US20010035308A1 US20010035308A1 US09/780,719 US78071901A US2001035308A1 US 20010035308 A1 US20010035308 A1 US 20010035308A1 US 78071901 A US78071901 A US 78071901A US 2001035308 A1 US2001035308 A1 US 2001035308A1
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- United States
- Prior art keywords
- pedal
- motor
- wheel
- platform
- scooter
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K3/00—Bicycles
- B62K3/002—Bicycles without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
- B62D61/02—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with two road wheels in tandem on the longitudinal centre line of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/02—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of unchangeable ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2204/00—Adaptations for driving cycles by electric motor
Definitions
- the invention herein resides in the field of electrically powered scooters and more particularly relates to a scooter having a mounted motor and drive wheel, the interconnection of which to the rear wheel is foot-activated when desired.
- Scooters are normally built with a steerable front wheel and a fixed back wheel rotatably mounted on a chassis having a central platform.
- the rider stands with one foot on the platform of the scooter and pushes off the ground with the other foot to propel the scooter forward.
- driving means of different mechanical types have been provided for transmitting force from the rider to the front or rear wheel, such as disclosed in U.S. Pat. Nos. 4,960,286 and 4,911,457.
- U.S. Pat. No. 4,915,403 is a foot pedal mechanically geared to the rear wheel of the scooter for providing additional momentum by the rider's depression of the foot pedal to propel the scooter forward.
- Skateboards with battery-powered electric motors are also known.
- an electric motor is connected to one of the wheel's axles to rotate it by means of a belt attached to the electric motor, such as disclosed in U.S. Pat. No. 5,020,621.
- a clutch to provide some free wheeling when the motor is turned off, there is still considerable friction and drag caused by such clutches. Because of this drag, the rider has to continuously apply power to maintain speed, thereby discharging the battery quickly.
- the electrically powered scooter of this invention includes a chassis having a front section, a central section and a rear section. In the central section of the chassis is mounted a platform upon which the rider can stand and under which platform is disposed a battery.
- the scooter has a front wheel mounted at the front section of the chassis to provide steering control and at least one back wheel rotatably mounted at the rear section of the chassis.
- the scooter is equipped with a foot-operated drive means incorporating a motor mounted on a pedal that can be shifted from an inactive position to an activated position, at the same time activating the motor which, via force transmission means, causes the back wheel to rotate.
- the electric motor can be placed on a side of the rider's foot-operated pedal.
- the pedal can have one end pivotably attached at the rear section of the chassis and in the inactivated position the force transmission means for transmitting force from the motor to the rear wheel of the scooter is mounted on the shaft of the motor where it does not contact the rear wheel.
- the force transmission means being a drive wheel
- the scooter is equipped with a resilient return member adapted to urge the pedal from its depressed, activated position to an inactivated position after the rider has released foot pressure so that the drive wheel no longer contacts the rear wheel.
- the resilient return member can be a spring.
- the electric motor drive is, respectively, turned on and off via control means which can be a switch interconnected between the motor and the battery.
- control means which can be a switch interconnected between the motor and the battery.
- the switch turns on the motor and the drive wheel on the shaft of the motor engages the rear wheel, propelling the scooter forward.
- the action of the return spring causes the pedal to return to its inactive position and stop contact of the drive wheel with the rear wheel, thereby turning off the motor.
- the force transmission means to transmit force from the motor to the rear wheel of the scooter can be a friction-type drive wheel disposed on the shaft of the motor.
- the drive wheel of the force transmission can be made of rubber, neoprene, metal or other equivalent suitable material.
- the control means can be in the form of a switch interconnecting the motor with the battery for turning the motor on and off, and such switch can be a leaf switch, pressure switch, touch switch or other equivalent type of switch.
- the scooter steering mechanism can include a steering handle, a post ending in a yoke with the front wheel rotatably fixed therein.
- the scooter can also include means for adjusting the height of the post and means for folding the scooter for storage.
- FIG. 1 illustrates a perspective view of the electrically powered scooter of this invention.
- FIG. 2 illustrates a perspective view of the rear wheel and drive mechanism of the electrically powered scooter of this invention.
- FIG. 1 illustrates a perspective view of scooter 10 of this invention having front wheel 26 mounted in a yoke on post 28 surmounted by a typical steering handle 32 , all of which are attached to chassis 36 which extends back and is attached to rear wheel 24 .
- Some scooters incorporating the present invention can be of the collapsible type with folding front posts.
- platform 34 On top of the central section of chassis 36 is platform 34 on which the rider stands. Beneath platform 34 is battery 22 .
- pedal 16 Disposed at the rear end of platform 34 is pedal 16 which is pivotably attached at its base to platform 34 by pivot shaft 30 such that the rider of the scooter, when desired, can apply foot pressure against pedal 16 and depress the pedal rearwardly, pivoting it downward, as described below.
- FIG. 1 illustrates a perspective view of scooter 10 of this invention having front wheel 26 mounted in a yoke on post 28 surmounted by a typical steering handle 32 , all of which are attached to chassis 36 which extends back and is attached to rear wheel 24 .
- pivot shaft 30 is held at each end by first and second projections 35 and 37 from platform 34 which projections have apertures defined therein, such as first aperture 39 to receive pivot shaft 30 therein.
- Pedal 16 is held in an inactive position, as seen in FIG. 1, by the stiffness of spring 18 which holds the pedal upright in a first inactive position so that drive wheel 14 is not in contact with rear wheel 24 with which it is aligned.
- pedal 16 When pedal 16 is depressed rearward by the pressure of the rider's foot thereagainst, it pivots on pivot shaft 30 , causing spring 18 to bend rearward until drive wheel 14 comes in contact with rear wheel 24 with which it is aligned.
- Spring 18 can have its first end attached to platform 34 , then coil around pivot shaft 30 next to first projection 35 , then extend upwards against the rear of pedal 16 , then extend horizontally across the rear of pedal 16 to a point where it extends downward to where it coils around pivot shaft 30 next to second projection 37 from where it extends to attach again to platform 34 .
- switch 40 as seen in FIG. 2, is turned on by contact with switch activation projection 45 positioned on bracket 44 caused by the movement of pedal 16 , directing power from battery 22 to motor 12 which action rotates drive wheel 14 as drive wheel 14 is positioned on shaft 38 of motor 12 which shaft is parallel to the axis of rear wheel 24 .
- Motor 12 is held on by bracket 44 attached to the rear of pedal 16 .
- the motor could be displaced from being perpendicular to the shaft by gears.
- the rotating drive wheel 14 comes in contact with rear wheel 24 , it propels the scooter forward.
- spring 18 being resilient in nature, returns to its first inactive position, pushing pedal 16 and its attached drive wheel 14 forward away from contact with rear wheel 24 so that rear wheel 24 is no longer driven by motor 12 .
- switch 40 is turned off by such pedal's forward movement as it is no longer held in a biased “on” position by being depressed by switch activation projection 45 . This action cuts power to motor 12 so that it ceases operation; and drive wheel 14 no longer rotates. This cutting off of power preserves the life of battery 22 .
- the present invention represents a significant advance over prior art scooters. Simple and easy control is achieved by mounting the motor and drive wheel on a spring-loaded pedal pivotably attached to the rear section of the chassis, and the forward movement of the scooter is easily controlled by depressing pedal 16 with one foot. By depressing the pedal with his foot, the rider turns on the motor and brings the drive wheel of the motor into contact with the rear wheel. Removing the foot from the pedal disengages the drive wheel of the motor from the rear wheel, and the switch turns off the motor.
- the electrically powered scooter of this invention allows for free wheeling without motor drag since, when the motor is turned off, the drive wheel is separated from the rear wheel by clearance space 42 and is not in contact with the rear wheel.
- Power to the rear wheel can be turned on and regulated as necessary by the rider to optimize coasting. Coasting is desirable as it is drag-free, allowing the scooter to cover an optimum distance between applications of motor power so as to extend the distance traveled between battery rechargings.
Abstract
An electric-powered scooter is disclosed having a chassis with a platform upon which the rider stands, a front wheel mounted to provide steering control and a rear wheel rotatably mounted at the rear section of the chassis. A pedal is pivotably mounted at the rear section of the chassis and is attached to the motor and drive wheel. The pedal, in an inactive position, holds such drive wheel in a position where it does not contact the rear wheel. When the pedal is depressed by the foot of the rider, the motor is turned on and the drive wheel contacts the rear wheel, propelling the scooter forward. When released, the pedal returns automatically by spring means to its inactive position, breaking the contact of the rear wheel with the drive wheel, and automatically turning the motor off.
Description
- This application is a continuation-in-part of my previous application entitled Electrically Powered Scooter filed Apr. 27, 2000, Ser. No. 09/559,607 now pending.
- 1. Field of the Invention
- The invention herein resides in the field of electrically powered scooters and more particularly relates to a scooter having a mounted motor and drive wheel, the interconnection of which to the rear wheel is foot-activated when desired.
- 2. History of the Prior Art
- Scooters are normally built with a steerable front wheel and a fixed back wheel rotatably mounted on a chassis having a central platform. To gain momentum, the rider stands with one foot on the platform of the scooter and pushes off the ground with the other foot to propel the scooter forward. For additional momentum, driving means of different mechanical types have been provided for transmitting force from the rider to the front or rear wheel, such as disclosed in U.S. Pat. Nos. 4,960,286 and 4,911,457. Also disclosed in U.S. Pat. No. 4,915,403 is a foot pedal mechanically geared to the rear wheel of the scooter for providing additional momentum by the rider's depression of the foot pedal to propel the scooter forward. Skateboards with battery-powered electric motors are also known. In one such embodiment, an electric motor is connected to one of the wheel's axles to rotate it by means of a belt attached to the electric motor, such as disclosed in U.S. Pat. No. 5,020,621. Although most motorized scooters employ a clutch to provide some free wheeling when the motor is turned off, there is still considerable friction and drag caused by such clutches. Because of this drag, the rider has to continuously apply power to maintain speed, thereby discharging the battery quickly.
- It is an object of the present invention to provide an electric battery-powered scooter that has an easy-to-use and highly efficient mode of operation.
- It is a further object of the invention to provide an electric scooter with drag-free coasting, thereby increasing travel distance between battery charges.
- The electrically powered scooter of this invention includes a chassis having a front section, a central section and a rear section. In the central section of the chassis is mounted a platform upon which the rider can stand and under which platform is disposed a battery. The scooter has a front wheel mounted at the front section of the chassis to provide steering control and at least one back wheel rotatably mounted at the rear section of the chassis. The scooter is equipped with a foot-operated drive means incorporating a motor mounted on a pedal that can be shifted from an inactive position to an activated position, at the same time activating the motor which, via force transmission means, causes the back wheel to rotate. The electric motor can be placed on a side of the rider's foot-operated pedal. The pedal can have one end pivotably attached at the rear section of the chassis and in the inactivated position the force transmission means for transmitting force from the motor to the rear wheel of the scooter is mounted on the shaft of the motor where it does not contact the rear wheel. When the rider depresses the pedal, the force transmission means, being a drive wheel, contacts and drives the rear wheel. The scooter is equipped with a resilient return member adapted to urge the pedal from its depressed, activated position to an inactivated position after the rider has released foot pressure so that the drive wheel no longer contacts the rear wheel. The resilient return member can be a spring.
- As the rider depresses the pedal and then removes his foot from the pedal, the electric motor drive is, respectively, turned on and off via control means which can be a switch interconnected between the motor and the battery. When the pedal is depressed, the switch turns on the motor and the drive wheel on the shaft of the motor engages the rear wheel, propelling the scooter forward. When the pedal is released, the action of the return spring causes the pedal to return to its inactive position and stop contact of the drive wheel with the rear wheel, thereby turning off the motor.
- The force transmission means to transmit force from the motor to the rear wheel of the scooter can be a friction-type drive wheel disposed on the shaft of the motor. The drive wheel of the force transmission can be made of rubber, neoprene, metal or other equivalent suitable material. The control means can be in the form of a switch interconnecting the motor with the battery for turning the motor on and off, and such switch can be a leaf switch, pressure switch, touch switch or other equivalent type of switch. The scooter steering mechanism can include a steering handle, a post ending in a yoke with the front wheel rotatably fixed therein. The scooter can also include means for adjusting the height of the post and means for folding the scooter for storage.
- FIG. 1 illustrates a perspective view of the electrically powered scooter of this invention.
- FIG. 2 illustrates a perspective view of the rear wheel and drive mechanism of the electrically powered scooter of this invention.
- FIG. 1 illustrates a perspective view of
scooter 10 of this invention havingfront wheel 26 mounted in a yoke on post 28 surmounted by atypical steering handle 32, all of which are attached to chassis 36 which extends back and is attached torear wheel 24. Some scooters incorporating the present invention can be of the collapsible type with folding front posts. On top of the central section of chassis 36 isplatform 34 on which the rider stands. Beneathplatform 34 is battery 22. Disposed at the rear end ofplatform 34 ispedal 16 which is pivotably attached at its base toplatform 34 bypivot shaft 30 such that the rider of the scooter, when desired, can apply foot pressure againstpedal 16 and depress the pedal rearwardly, pivoting it downward, as described below. As seen in FIG. 2,pivot shaft 30 is held at each end by first and second projections 35 and 37 fromplatform 34 which projections have apertures defined therein, such asfirst aperture 39 to receivepivot shaft 30 therein. Pedal 16 is held in an inactive position, as seen in FIG. 1, by the stiffness ofspring 18 which holds the pedal upright in a first inactive position so thatdrive wheel 14 is not in contact withrear wheel 24 with which it is aligned. Whenpedal 16 is depressed rearward by the pressure of the rider's foot thereagainst, it pivots onpivot shaft 30, causingspring 18 to bend rearward untildrive wheel 14 comes in contact withrear wheel 24 with which it is aligned.Spring 18 can have its first end attached toplatform 34, then coil aroundpivot shaft 30 next to first projection 35, then extend upwards against the rear ofpedal 16, then extend horizontally across the rear ofpedal 16 to a point where it extends downward to where it coils aroundpivot shaft 30 next to second projection 37 from where it extends to attach again toplatform 34. At thispoint switch 40, as seen in FIG. 2, is turned on by contact with switch activation projection 45 positioned onbracket 44 caused by the movement ofpedal 16, directing power from battery 22 tomotor 12 which action rotatesdrive wheel 14 asdrive wheel 14 is positioned on shaft 38 ofmotor 12 which shaft is parallel to the axis ofrear wheel 24. Motor 12 is held on bybracket 44 attached to the rear ofpedal 16. In some embodiments the motor could be displaced from being perpendicular to the shaft by gears. When the rotatingdrive wheel 14 comes in contact withrear wheel 24, it propels the scooter forward. When foot pressure is released frompedal 16,spring 18, being resilient in nature, returns to its first inactive position, pushingpedal 16 and its attacheddrive wheel 14 forward away from contact withrear wheel 24 so thatrear wheel 24 is no longer driven bymotor 12. At thesame time switch 40 is turned off by such pedal's forward movement as it is no longer held in a biased “on” position by being depressed by switch activation projection 45. This action cuts power to motor 12 so that it ceases operation; and drivewheel 14 no longer rotates. This cutting off of power preserves the life of battery 22. - The present invention represents a significant advance over prior art scooters. Simple and easy control is achieved by mounting the motor and drive wheel on a spring-loaded pedal pivotably attached to the rear section of the chassis, and the forward movement of the scooter is easily controlled by depressing
pedal 16 with one foot. By depressing the pedal with his foot, the rider turns on the motor and brings the drive wheel of the motor into contact with the rear wheel. Removing the foot from the pedal disengages the drive wheel of the motor from the rear wheel, and the switch turns off the motor. The electrically powered scooter of this invention allows for free wheeling without motor drag since, when the motor is turned off, the drive wheel is separated from the rear wheel by clearance space 42 and is not in contact with the rear wheel. Power to the rear wheel can be turned on and regulated as necessary by the rider to optimize coasting. Coasting is desirable as it is drag-free, allowing the scooter to cover an optimum distance between applications of motor power so as to extend the distance traveled between battery rechargings. - Although the present invention has been described with reference to particular embodiments, it will be apparent to those skilled in the art that variations and modifications can be substituted therefor without departing from the principles and spirit of the invention.
Claims (1)
1. A scooter of the type having a chassis having a front section, a central section and a rear section for support of a rider thereon; a front wheel disposed at said front section of said chassis, said front wheel attached to a steering mechanism; a rear wheel having an axis disposed at said rear section of said chassis; a platform having a rear, a top and a bottom, said platform disposed on said central portion of said chassis on which platform said rider stands; a battery disposed under said platform wherein the improvement comprises:
a pedal hingeably attached to said rear of said platform;
a bracket attached to said pedal;
a switch activation projection attached to said bracket;
a spring member attached at the rear of said platform, said spring member urging against the rearward movement of said pedal for holding said pedal in a first inactive position;
a motor attached to said pedal by said bracket, said motor powered by said battery;
a drive wheel attached to said motor, said drive wheel being aligned with, but not contacting, said rear wheel of said scooter when said pedal is in a first inactive position;
said pedal being maneuverable by pressure from said rider's foot to a second active position, causing a rearward bending of said spring member and contact of said drive wheel with said rear wheel; said spring member, when foot pressure is removed from said pedal, returning said pedal to its first inactive position, thereby displacing said drive wheel away from contact with said rear wheel; and.
a switch interposed between said motor and said battery, said switch biased off when said pedal is in its first inactive position, cutting power from said battery to said motor; and said switch biased on when said pedal is in its second active position being depressed by the rider's foot, causing said switch activation projection on said bracket to bias said switch on and direct power from said battery to said motor for rotating said drive wheel against said rear wheel to propel said scooter forward.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/780,719 US6343667B2 (en) | 2000-04-27 | 2001-02-12 | Electric-powered scooter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/559,607 US6227324B1 (en) | 2000-04-27 | 2000-04-27 | Electrically powered scooter |
US09/780,719 US6343667B2 (en) | 2000-04-27 | 2001-02-12 | Electric-powered scooter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/559,607 Continuation-In-Part US6227324B1 (en) | 2000-04-27 | 2000-04-27 | Electrically powered scooter |
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US20010035308A1 true US20010035308A1 (en) | 2001-11-01 |
US6343667B2 US6343667B2 (en) | 2002-02-05 |
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Application Number | Title | Priority Date | Filing Date |
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US09/559,607 Expired - Fee Related US6227324B1 (en) | 2000-04-27 | 2000-04-27 | Electrically powered scooter |
US09/780,719 Expired - Fee Related US6343667B2 (en) | 2000-04-27 | 2001-02-12 | Electric-powered scooter |
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Application Number | Title | Priority Date | Filing Date |
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US09/559,607 Expired - Fee Related US6227324B1 (en) | 2000-04-27 | 2000-04-27 | Electrically powered scooter |
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US (2) | US6227324B1 (en) |
WO (1) | WO2001083287A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4418784A (en) * | 1982-01-26 | 1983-12-06 | Duke Fox | Bicycle transmission assembly |
DE3537522A1 (en) * | 1985-10-22 | 1987-04-23 | Stoll Kurt | Scooter |
US4821832A (en) * | 1987-07-09 | 1989-04-18 | Patmont Steven J | Motor scooter having a foldable handle and friction drive |
US5183129A (en) * | 1991-06-17 | 1993-02-02 | Powell Robert M | Collapsible scooter |
DE4240439A1 (en) * | 1992-12-02 | 1994-06-09 | Geze Gmbh & Co | Scooter with clutch pedal coupling rear wheel to auxiliary electric drive motor - has free-wheeling before or after engagement of drive by friction roller from electric motor or small petrol engine. |
US5388659A (en) * | 1993-08-19 | 1995-02-14 | Pepe; Anthony | Motorized scooter |
US5775452A (en) * | 1996-01-31 | 1998-07-07 | Patmont Motor Werks | Electric scooter |
US5927420A (en) * | 1996-03-27 | 1999-07-27 | Karrington; Blake S. | Engine driven skateboard |
US6095274A (en) * | 1998-04-09 | 2000-08-01 | Patmont; Steven J. | Engine drive for scooter |
US6012539A (en) * | 1998-05-01 | 2000-01-11 | Patmont Motor Werks | All terrain scooter |
US6273205B1 (en) * | 2000-09-13 | 2001-08-14 | Shui-Te Tsai | Power clutch mechanism of scooter |
-
2000
- 2000-04-27 US US09/559,607 patent/US6227324B1/en not_active Expired - Fee Related
- 2000-09-07 WO PCT/US2000/024499 patent/WO2001083287A1/en active Application Filing
-
2001
- 2001-02-12 US US09/780,719 patent/US6343667B2/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030168273A1 (en) * | 2002-01-10 | 2003-09-11 | Sbs Enterprises, Llc; | Scooter drive device |
US8061725B1 (en) * | 2009-03-06 | 2011-11-22 | Hawkins James E | Motorized skatedboard |
US8439140B1 (en) * | 2010-09-01 | 2013-05-14 | Carlos Amortegui | Energy converter assembly |
USD778806S1 (en) * | 2015-09-20 | 2017-02-14 | Virginia Jeanette Welford | Electric powered scooter |
RU2658234C2 (en) * | 2016-12-12 | 2018-06-19 | Руслан Иванович Молчанов | Scooter |
USD940052S1 (en) * | 2019-01-10 | 2022-01-04 | Globe 3 T | Scooter |
USD940051S1 (en) * | 2019-01-10 | 2022-01-04 | Globe 3 T | Scooter |
USD940053S1 (en) * | 2019-01-10 | 2022-01-04 | Globe 3 T | Scooter |
Also Published As
Publication number | Publication date |
---|---|
US6343667B2 (en) | 2002-02-05 |
WO2001083287A1 (en) | 2001-11-08 |
US6227324B1 (en) | 2001-05-08 |
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