Manually-propelled vehicle and related systems

Land vehicles – Wheeled – Occupant propelled type

Reexamination Certificate

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Details

C280S242100, C280S250000

Reexamination Certificate

active

06916032

ABSTRACT:
The invention provides a propulsion, braking and anti-rollback control assembly for use in manually propelled vehicles such as wheelchairs. In one embodiment, the invention provides a wheelchair with a control lever assembly and related force conveyance connecter that propel, brake and steer the wheelchair in a mechanically advantageous way while minimizing rollback. A seat-activated auxiliary braking system is also provided. Additionally, the invention provides a selective anti-rollback disengagement system that facilitates selective rollback.

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patent: 2003/0025292 (2003-02-01), Hargroder
patent: 2561610 (1989-03-01), None
patent: 2000333998 (2002-12-01), None

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