Shock absorbing trailer hitch

Details Shock absorbing trailer hitch Shock absorbing trailer hitch

2005-02-15

2005-02-15

DePumpo, Daniel G. (Department: 3611)

Land vehicles

Wheeled

Articulated vehicle

C280S441200, C280S484000

Reexamination Certificate

active

06854757

ABSTRACT:
A shock absorbing trailer hitch generally includes a socket adapted to lock onto a ball connected to the towing vehicle. The socket is connected to a lower support member which supports the bottom of a shock absorbing assembly. An inner tube extends up from the socket and lower tube through the shock absorbing assembly. The upper portion of the shock absorbing assembly is connected to an upper support member that is connected to the towed vehicle. A bearing is secured to the upper tube that slidably but non-rotatably receives the upper portion of the inner tube. The shock absorbing assembly includes rubber springs that absorb the forces experienced by the trailer hitch.

REFERENCES:
patent: 3892398 (1975-07-01), Marsh
patent: 3904226 (1975-09-01), Smalley
patent: 4460194 (1984-07-01), McGhie et al.
patent: 4632371 (1986-12-01), Wirges et al.
patent: 5324061 (1994-06-01), Lay
patent: 5421599 (1995-06-01), Maines
patent: 5683094 (1997-11-01), Gullickson
patent: 5868415 (1999-02-01), Van Vleet
patent: 5975553 (1999-11-01), Van Vleet

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