Locking device for telescopic rods

Details Locking device for telescopic rods Locking device for telescopic rods

1997-03-13

1999-03-02

Kim, Harry C.

Joints and connections

Articulated members

Lockable at fixed position

4033743, 16115, F16B 214

Patent

active

058761470

ABSTRACT:
A reversible expansion locking element for selectively securing two tubes or rods in telescoping relationship with respect to one another wherein the element has oppositely oriented outwardly expandable conical threaded portions separated by a central protrusion. The expansion element is receivable within a first hollow tube and is adapted to receive a threaded end of the other tube or rod.

REFERENCES:
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patent: 1000149 (1911-08-01), Bristol
patent: 2261505 (1941-11-01), Schlesinger
patent: 2298380 (1942-10-01), Hood
patent: 2915327 (1959-12-01), Kreske
patent: 4152086 (1979-05-01), Achenbach et al.
patent: 4154545 (1979-05-01), Pinto et al.
patent: 4238164 (1980-12-01), Mazzolla
patent: 4856929 (1989-08-01), Smamlik et al.
patent: 4858926 (1989-08-01), Cabianca
patent: 5193932 (1993-03-01), Wu
patent: 5458427 (1995-10-01), Simond

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