Internal locking device for telescopic elements and method of ma

Details Internal locking device for telescopic elements and method of ma Internal locking device for telescopic elements and method of ma

1980-08-28

1983-12-06

Shedd, Wayne L.

Joints and connections

Articulated members

Lockable at fixed position

403109, 403343, 403DIG7, 403351, F16B 710, F16D 112

Patent

active

044190263

ABSTRACT:
An internal locking device for telescoping tubular members and method of forming the same. The device includes an inner telescoping member, having an end formed with an annular cam groove of a selected configuration, and a cam element cooperating with said cam groove and outwardly extendable to form a releaseable lock of an outer telescoping tubular member with the inner member when the members are twisted one with the other.

REFERENCES:
patent: 2461625 (1949-02-01), Benson
patent: 2884270 (1959-04-01), Carlberg
patent: 3295872 (1967-01-01), Kragle
patent: 3515418 (1970-06-01), Nielson
patent: 3795453 (1974-03-01), Condevaux

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