Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Patent
1998-02-12
1999-07-27
Scherbel, David A.
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
8117785, B25B 2316
Patent
active
059271612
ABSTRACT:
An adjustable tool with multiple telescoping units. The upper member has a closed upper end, an open lower end, and a cylindrical sidewall therebetween. The closed upper end has a recess formed for receiving a drive end of a ratchet. An interior surface of the cylindrical wall has a plurality of diametrically opposed recesses extending a length. An intermediate member is telescopically received within the open lower end of the upper member. The intermediate member has an upper portion and a lower portion. The upper portion has a thickness less than a thickness of an interior of the upper member. The upper portion has a pair of diametrically opposed spring balls extending outwardly for selectively mating with a pair of recesses of the upper member. The lower portion has an open lower end and a hollow interior. An interior surface of the lower portion has a plurality of diametrically opposed recesses extending a length. A lower member is telescopically received within the open lower end of the lower portion of the intermediate member. The lower member has an upper portion with a thickness less than a thickness of an interior of the lower portion of the intermediate member. The upper portion has a pair of diametrically opposed spring balls extending outwardly for selectively mating with a pair of opposed recesses of the lower portion. A lower end of the lower member has a drive end.
REFERENCES:
patent: 4367663 (1983-01-01), Merics
patent: 4905548 (1990-03-01), Colace et al.
Clifford Curwin A.
Friedrich Errol G.
Hoffmann Philip J.
Scherbel David A.
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