Locking mast and stop ring assembly

Details Locking mast and stop ring assembly Locking mast and stop ring assembly

1985-12-16

1987-05-12

Friedman, Carl D.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Fluid pressure actuated

52118, 52121, 52632, 212267, B66C 2306

Patent

active

046639004

ABSTRACT:
A locking assembly (35) for telescoping masts (10) having at least first and second tubes (12,13), the second tube (13) fitting within the first tube (12). The assembly includes sleeve means (36) encompassing one end (59) of the second tube (13) and rigidly affixed thereto, cap means (58) affixed to the second tube (13) below the sleeve means (36) forming an air tight seal within the first tube (12), stop ring means (38) carried above the sleeve means (36) and encompassing the second tube (13), recess means (68) formed by the sleeve means (36) and the stop ring means (38) and locking collar means (20) rigidly affixed to a first end (43) of the first tube (12) providing at least one movable member (76) engageable with the recess means (68).

REFERENCES:
patent: 2679911 (1954-06-01), Bhend
patent: 2708493 (1955-05-01), Badertscher et al.
patent: 3135363 (1964-06-01), Bourassa

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