Compound tools – With screwdriver
Patent
1991-12-11
1993-01-19
Parker, Roscoe V.
Compound tools
With screwdriver
7167, 81439, 81490, 70456R, B25F 102
Patent
active
051797488
ABSTRACT:
A key ring and screwdriver device is disclosed as including a hollow tubular handle having opposite open ends. A reversible screwdriver having different blade ends at an intermediate polygonal cross sectional area is capable of being stored in one open end of the hollow tubular handle. At the opposite open end of the hollow tubular handle, a ferrule is provided. The ferrule includes an outer internally threaded section and inner polygonally shaped section. The outer internally threaded section has a cross sectional dimension greater than the reversible screwdriver blade in order to freely accommodate same. The inner polygonally shaped section has a complementary shape and size for receiving the intermediate polygonal cross sectional area of the reversible screwdriver blade in driving engagement therewith. At least one key ring is provided which has a threaded end for complementary threaded engagement with the outer threaded section of the ferrule element when the screwdriver blade is stored in the opposite open end of the hollow tubular handle. A second key ring may also be provided with a threaded end for complementary threaded engagement with an internally threaded area on the opposite open end of the hollow tubular handle, in order to capture the screwdriver blade in the hollow tubular handle.
REFERENCES:
patent: 504757 (1893-09-01), Schuermann
patent: 2022775 (1935-12-01), Holland-Letz
patent: 4248071 (1981-02-01), Kussoy
patent: 4300607 (1981-11-01), Mellinger
patent: 4631770 (1986-12-01), Goldberg
patent: 4827812 (1989-05-01), Markovetz
Alexander Manufacturing Company
Parker Roscoe V.
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