Land vehicles – Wheeled – Extensible
Patent
1976-03-29
1977-08-30
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Extensible
280 42, 280647, B62M 114
Patent
active
040450511
ABSTRACT:
A foldable wheel chair wherein diagonal braces which are transversely foldable are coupled by universal joints to front and rear portions between two longitudinally foldable opposite side frames to prevent slidable motion. Caster wheels and drive wheels are mounted on the side frames thereby folding the wheel chair in longitudinal and transversal directions to render it compact.
REFERENCES:
patent: 766537 (1904-08-01), Simpson
patent: 2896693 (1959-07-01), Schladebach
patent: 3136272 (1964-06-01), Sprigman
patent: 3968991 (1976-07-01), Maclaren
Igarashi Jun
Koga Tadao
Ueda Satoshi
Peters Jr. Joseph F.
Siemens Terrance L.
Yaesu Rehabili Co., Ltd.
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