Brakes – Vehicle
Patent
1987-06-22
1988-03-29
Pekar, John A.
Brakes
Vehicle
188 31, B60T 106
Patent
active
047337559
ABSTRACT:
The invention relates to a mechanism which can be selectively operated by a wheelchair occupant to insure that the wheelchair will not roll backwards when on an upsloping ramp when the occupant releases both hands from the driving wheels and which mechanism can either be incorporated in a new wheelchair or easily added to an existing wheelchair.
REFERENCES:
patent: 2425574 (1947-08-01), Stewack
patent: 3200907 (1965-08-01), Hansen
patent: 3259396 (1966-07-01), Zamotin
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