Trailer jack

Details Trailer jack Trailer jack

1989-08-31

1991-03-05

Kashnikow, Andres

Land vehicles

Wheeled

Attachment

254419, 403293, 403327, B60S 902

Patent

active

049972030

ABSTRACT:
An improved attachment between a supporting jack on a trailer and the frame of the trailer. The device is based on a matching boss and socket. The device is spring loaded so as to be normally engaged but is releasable against a spring loading. It is entirely enclosed to avoid interference with its action, by any dirt, dust, grease or the like, and includes a special friction producing surface engageable between the boss and the interior of the socket to prevent vibration-caused disengagement.

REFERENCES:
patent: 3614064 (1971-10-01), Bennett
patent: 4589632 (1986-05-01), Smith

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