Telescopic tubes locking device

Details Telescopic tubes locking device Telescopic tubes locking device

1994-10-14

1996-02-20

Johnson, Blair M.

Joints and connections

Articulated members

Lockable at fixed position

403377, 403325, 2481885, F16B 710

Patent

active

054924308

ABSTRACT:
A locking device for a pair of telescopic tubes which assumes a locked position when the tubes are at rest. The locking device comprises a housing mounted around the telescopic tubes. Located interiorly of the housing is an end fitting and a collet with the collet being tightly pressed into engagement with the inner tube when the housing is in a retracted position. Longitudinal movement of the housing to an extended position will free the collet from the end fitting thereby permitting telescopic sliding movement of the tubes.

REFERENCES:
patent: 2184358 (1939-12-01), Moore
patent: 2430649 (1947-11-01), Schulz
patent: 2455525 (1948-12-01), Schulz
patent: 3480247 (1909-11-01), Waner
patent: 3491614 (1970-01-01), Saunders et al.
patent: 4169687 (1979-10-01), Schull
patent: 4180346 (1979-12-01), Blake
patent: 4234151 (1980-11-01), John et al.
patent: 4757778 (1988-07-01), Scaglia
patent: 4900182 (1990-02-01), Stillwagon
patent: 5011104 (1991-04-01), Fang
patent: 5141355 (1992-08-01), Stillwagon

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