Vehicle having wheels and castors

Details Vehicle having wheels and castors Vehicle having wheels and castors

1996-12-31

1999-05-04

Mai, Lanna

Land vehicles

Wheeled

Occupant propelled type

74569, 16 35D, B60B 3300

Patent

active

058994750

ABSTRACT:
A vehicle such as a wheelchair having wheels by which the vehicle is propelled and steered and castors which support a proportion of the vehicle's weight, has its castors provided with biasing means which resists swivelling movement of the castors from the straight-ahead position thereby resisting an oversteer condition of the vehicle.

REFERENCES:
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patent: 2688149 (1954-09-01), Popp
patent: 3924292 (1975-12-01), Christensen
patent: 4212093 (1980-07-01), Lombard
patent: 4246677 (1981-01-01), Downing et al.
patent: 4280246 (1981-07-01), Christensen
patent: 4392668 (1983-07-01), Mulholland
patent: 4432116 (1984-02-01), Schultz
patent: 4559669 (1985-12-01), Bonzer et al.
patent: 4570288 (1986-02-01), Kassai
patent: 4614246 (1986-09-01), Masse et al.
patent: 4763910 (1988-08-01), Brandli et al.
patent: 5140720 (1992-08-01), Sisler
patent: 5214823 (1993-06-01), Screen
patent: 5275248 (1994-01-01), Finch et al.
patent: 5762155 (1998-06-01), Scheulderman

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