Shock absorbing fifth wheel

Details Shock absorbing fifth wheel Shock absorbing fifth wheel

1999-03-16

1999-10-12

Mai, Lanna

Land vehicles

Wheeled

Articulated vehicle

2804381, B62D 5306

Patent

active

059644761

ABSTRACT:
A shock absorbing fifth wheel which absorbs transmitted shocks between two vehicles. A plurality of springs absorbs directional shocks, and a plurality of roller bearings carries vertical (gravity) and side (lateral) loads so that the shock absorbing quality is not compromised by dirt, dust or grit between bearing surfaces. The apparatus may be adjusted readily by the user or manufacturer for varying loads and shock absorbing qualities.

REFERENCES:
patent: 1334113 (1920-03-01), Norton
patent: 1424496 (1922-08-01), Liedabrand
patent: 1623179 (1927-04-01), Greer
patent: 1908711 (1933-05-01), Kuchar
patent: 2053812 (1936-09-01), Bradshaw
patent: 2093761 (1937-09-01), Kramer
patent: 3868098 (1975-02-01), Coombs
patent: 4721323 (1988-01-01), Czuk et al.
patent: 4991864 (1991-02-01), Potsch
patent: 5411281 (1995-05-01), Poirier
patent: 5421599 (1995-06-01), Maines
patent: 5980728 (1999-04-01), Zim

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