Land vehicles – Wheeled – Extensible
Patent
1994-07-05
1995-11-21
Camby, Richard M.
Land vehicles
Wheeled
Extensible
280655, 280 4729, B62B 104
Patent
active
054680050
ABSTRACT:
A foldable cart comprises a handle, a pair of wheels pivotally mounted to the bottom respective ends of the handle, and a loading platform at the bottom of the cart in an opposite direction with respect to the wheels. The loading platform has a pair of conical gears at the rear respective ends adapted to engage with a pair of crown gears located at the bottom ends of the wheel frames to adjust the position of the loading platform with respect to the cart.
REFERENCES:
patent: 4335895 (1982-06-01), Walker
patent: 4917392 (1990-04-01), Ambasz
patent: 5072958 (1991-12-01), Young
patent: 5127662 (1992-07-01), Spak
patent: 5263727 (1993-11-01), Libit et al.
Camby Richard M.
Goonng Chyii Industrial Co., Ltd.
Klein David I.
Rosenberg Morton J.
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