Land vehicles – Wheeled – Occupant propelled type
Reexamination Certificate
2007-11-20
2007-11-20
Morris, Lesley D. (Department: 3611)
Land vehicles
Wheeled
Occupant propelled type
C280S247000, C280S242100, C280S244000
Reexamination Certificate
active
10865079
ABSTRACT:
This invention provides wheelchair propulsion devices that do not contact the axles of the wheels to which they are attached, that decrease the amount of force required to propel the wheelchair, and that can be easily installed. The devices toggle between sliding with and engaging with the push ring depending on the force applied by the user. This invention provides kits comprising a device of this invention and instructions for assembling the device, instructions for using the device, and/or a device for the opposite side of the wheelchair. This invention provides methods for propelling a wheelchair. This invention provides non-axle-contacting, manual wheelchair propulsion devices for use by a wheelchair rider. The devices contact the push ring of a wheelchair in three or more locations.
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patent: 2005/0269797 (2005-12-01), Mitchell
patent: 2006/0261571 (2006-11-01), Mitchell
Evre Ruth
Morris Lesley D.
Yeagley Daniel
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