Wrench

Details Wrench Wrench

1994-10-28

1996-04-30

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

811244, B25B 1306

Patent

active

055114512

ABSTRACT:
A wrench for installing and removing a tip onto and from a tool comprises a rotary part and a locking hub. The tool includes a housing and a rotatable shaft which has a threaded bore. The tip includes a working portion and a threaded shank which is to be secured in the threaded bore of the shaft. The hub includes a projection which has a non-circular opening which engages a complementary surface on the shaft and a non-circular exterior surface which engages a complementary surface on the interior of the housing to prevent rotation of the shaft relative to the housing. The rotary part includes a passage which includes a non-circular portion which engages the tip to screw the tip into the shaft.

REFERENCES:
patent: 1318088 (1919-10-01), Klein
patent: 1507362 (1924-09-01), Bartosik
patent: 1905851 (1930-04-01), Green
patent: 2181678 (1939-11-01), Wright
patent: 2249906 (1941-09-01), Longoria
patent: 2598060 (1950-01-01), Kadesky
patent: 2834241 (1958-05-01), Chowning
patent: 3990453 (1976-11-01), Douvas et al.
patent: 4329892 (1982-05-01), Daigle
patent: 4526067 (1985-07-01), Gaquere
patent: 4834748 (1989-05-01), McDonald
patent: 4837857 (1989-06-01), Scheller et al.
patent: 4908015 (1990-03-01), Anis
patent: 4979355 (1990-12-01), Ulevich
patent: 5133726 (1992-07-01), Ruiz et al.
patent: 5222959 (1993-06-01), Anis
PhacoTmesis.TM., A Chiron Vision White Paper, Update: AAO, 1993, pp. 1-9, .COPYRGT.1993.

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