Extensible support structure

Details Extensible support structure Extensible support structure

1975-03-20

1976-08-31

Wood, Jr., M. H.

Land vehicles

Wheeled

Coasters

74493, 74567, 248298, 248354R, A45C 1302, B62D 118

Patent

active

039776921

ABSTRACT:
An extensible support structure comprising a housing formed of a pair of U-shaped members arranged to form an elongated passageway which telescopically receives a third member characterized by a cam member extending through aligned apertures in the first and second member and slots in the third member, overcenter means received in the housing and coacting with the cam member to urge it into a first position clamping the first and second members onto the third member to frictionally lock the third member in a selected axial position within the housing and a second position releasing the clamping engagement and the frictional lock of the third member.

REFERENCES:
patent: 3170711 (1965-02-01), Dunifon
patent: 3491614 (1970-01-01), Saunders
patent: 3533302 (1970-10-01), Hansen
patent: 3678778 (1972-07-01), Groves
patent: 3724290 (1973-04-01), Burton
patent: 3803939 (1974-04-01), Schenten
patent: 3877670 (1975-04-01), Findley

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