Land vehicles – Wheeled – Occupant propelled type
Patent
1976-03-23
1977-08-02
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Occupant propelled type
74546, 301 49, B62M 304
Patent
active
040391990
ABSTRACT:
This invention relates to push rod apparatus for propelling wheel chairs. Several different embodiments of the invention are disclosed. All the embodiments include a plurality of push rod mechanisms that provide the occupant with a means to propel a wheel chair in a forward and reverse direction. In addition, the push rod mechanisms of the various embodiments all include means to move the push rods away from and toward the center of the rear wheels of the wheel chair to which the push rods have been added. The push rods are extended away from the rear wheels of the wheel chair when in their uppermost position to place the push rods in a better position to be engaged by the occupant of the wheel chair and retract toward the center of the rear wheels in their lowermost position so that the push rods will not contact the surface on which the wheel chair is moving.
REFERENCES:
patent: 221255 (1879-11-01), Steel
patent: 391417 (1888-10-01), Lucas
patent: 899954 (1908-09-01), Cloyd
patent: 1201315 (1916-10-01), Leinberger
patent: 2250713 (1941-07-01), Johnson
patent: 2339013 (1944-01-01), Higgins
patent: 3226128 (1965-12-01), Grier
patent: 3227465 (1966-01-01), Massie
patent: 3301574 (1967-01-01), Good
patent: 3869146 (1975-03-01), Bulmer
Peters Jr. Joseph F.
Rubenstein Jack D.
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