Power drill housing extension coupling

Details Power drill housing extension coupling Power drill housing extension coupling

1995-12-27

1997-09-02

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5737, B25B 2306

Patent

active

056620110

ABSTRACT:
A universal housing extension adapted to be coupled to the front end of a wide variety of known drills having different sizes and configurations for securing the housing extension fixed to the housing. A mandrel is received in a chuck of a power drill with the mandrel carrying a thrust bushing which is secured on the mandrel against movement forwardly on the mandrel. A sleeve member is provided to be sandwiched between a rearwardly directed surface on the bearing and a forwardly directed surface on the housing of the drill so as to cause the sleeve member to frictionally engage to the housing against movement relative the housing.

REFERENCES:
patent: 1024151 (1912-04-01), Smith
patent: 1793053 (1931-02-01), Cahill
patent: 2621685 (1952-12-01), Butz
patent: 2631619 (1953-03-01), Folli
patent: 2696940 (1954-12-01), Andresen
patent: 2901912 (1959-09-01), Digby
patent: 3305156 (1967-02-01), Khan
patent: 4478112 (1984-10-01), Moulton
patent: 4949463 (1990-08-01), Chen
patent: 4972589 (1990-11-01), Povleski
patent: 5144870 (1992-09-01), Nick

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