Lever-activated lock for telescoping pole

Joints and connections – Articulated members – Lockable at fixed position

Reexamination Certificate

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Details

C403S374500, C403S377000, C403S322400

Reexamination Certificate

active

06908249

ABSTRACT:
A lock for securing first and second telescoped pole sections includes a base defining a through-bore for receipt of an end of a first pole section. A neck projects from the base and a collar is connected to the neck. The collar defines an opening aligned with the bore of the base. The collar receives a second pole section that is telescoped into the first pole section. A fastener is connected to the collar and a threaded end thereof projects from the collar. A lever control member is mated with the threaded end of the fastener and is movable to selectively radially constrict the collar. The fastener is rotatable relative to the collar but is frictionally engaged with the collar to prevent its unintended rotation. As necessary, the fastener is rotated relative to the collar to adjust the amount that the lever is advanced thereon.

REFERENCES:
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patent: 4596484 (1986-06-01), Nakatani
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patent: 5918997 (1999-07-01), Hsieh
patent: 6155743 (2000-12-01), Chen
patent: 1 039 149 (2000-09-01), None
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patent: 7601311 (1977-08-01), None
Inetrnational Search Report dated Apr. 29, 2002 from International Application No. PCT/US 01/49658 filed Dec. 26, 2001, (corresponding to this application).

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