Combination chuck key tool

Details Combination chuck key tool Combination chuck key tool

1983-03-28

1984-08-28

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

7165, 7170, 81 90A, 279 1K, B25B 1500

Patent

active

044676778

ABSTRACT:
A combination tool includes at least two chuck keys, each chuck key being individually borne on the end of a tool shaft or arm. The combination tool can also include other tool instrumentalities such as screwdrivers. Preferably, the tool comprises a pair of perpendicular tool shafts, having four chuck keys of different sizes disposed one each on the four free ends of the two shafts.

REFERENCES:
patent: D180643 (1957-07-01), Fitch
patent: 190119 (1877-05-01), Budd
patent: 234540 (1880-11-01), Collins
patent: 1516504 (1924-11-01), Schlager
patent: 2519559 (1950-08-01), Foster et al.
patent: 2760799 (1956-08-01), Smith
patent: 3276299 (1966-10-01), Halburian
patent: 4032160 (1977-06-01), Karasa et al.
patent: 4100637 (1978-07-01), Grieser et al.
patent: 4125913 (1978-11-01), Lewis

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