Land vehicles – Step or abutment ascending type vehicle – Fulcrum attachment
Patent
1988-08-29
1989-03-07
Marmor, Charles A.
Land vehicles
Step or abutment ascending type vehicle
Fulcrum attachment
280641, 280651, B62B 502
Patent
active
048099961
ABSTRACT:
An improved collapsable shopping cart capable of climbing stairs that employs a direct pivotal connection between two tubular frames, each frame having two spaced apart legs carrying wheels. The novel construction includes a bracket supporting the basket of the cart in an erected position and a handle for manual releasing the bracket and thus putting the cart in a collapsed position convenient for storage.
REFERENCES:
patent: 3514123 (1970-05-01), Ihjeski
patent: 3797847 (1974-03-01), Lindsey et al.
patent: 4199171 (1980-04-01), Betts
patent: 4339141 (1982-07-01), Thiboutot
patent: 4722538 (1988-02-01), Freyman
Mar Michael
Marmor Charles A.
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