Motor vehicles – Additional traction wheel
Patent
1991-04-26
1993-06-29
Skaggs, H. Grant
Motor vehicles
Additional traction wheel
180 651, 180907, B60K 100
Patent
active
052225674
ABSTRACT:
A power assist device for a wheelchair comprising a body, a drive wheel connected to the body and being movable between a raised position and a lowered surface engaging position, attachments for securing the body to the frame, a first motor for driving said drive wheel at least when the drive wheel is in the lowered surface engaging position, a second motor connected to the drive wheel for raising and lowering said drive wheel, a biaser, for biasing the drive wheel into surface engaging driving contact, a manually initiated electronic controller for controlling the power assist device, and a source of electrical power.
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Broadhead Douglas G.
Hobson Blaine M.
Genus Inc.
Skaggs H. Grant
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