Tool handle/extension coupler

Details Tool handle/extension coupler Tool handle/extension coupler

1991-05-02

1992-05-12

Kundrat, Andrew V.

Joints and connections

Including spaced, diverse connections

403299, 403361, B25G 300

Patent

active

051121565

ABSTRACT:
Couplers for hand tools and extension handles are made up of two one piece fittings. Each fitting has an attachment element for connection to one of the tool and extension handle and a connecting element for joining the two fittings. Normally, one of the attachment elements will be a threaded male element and the other a threaded female element. The connector elements also are composed of a male and female element. The male connector element is a tube or rod with a dually tapered flange. The flange fits into a channel (depression) in the female connector element. The connecting elements are complementary in shape and size.

REFERENCES:
patent: 3004362 (1961-10-01), Day
patent: 3682516 (1972-08-01), Savage
patent: 4132489 (1979-01-01), Berg, Jr. et al.
patent: 4642837 (1987-02-01), Nichols et al.
patent: 4663796 (1987-05-01), Helling et al.
patent: 4926522 (1990-05-01), Wang

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