Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Patent
1994-06-16
1995-05-30
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
811778, 81 581, B25B 1346
Patent
active
054192218
ABSTRACT:
A ratchet wrench comprises a ratchet head having a conventional ratchet system for rotating a shank about an axis. A generally cylindrically shaped connecting pin aligned along an axis parallel to the shank axis is attached to the ratchet head. The connecting pin extends through a splined orifice in a handle, thereby connecting the handle to the ratchet head. The handle is slidable between a locked position and a unlocked position on the connecting pin. When the handle is in the locked position, the ratchet wrench can be used to rotate a nut or bolt in a conventional manner. When the handle is in the unlocked position, and the ratchet wrench can be used to rapidly rotate a nut or bolt by moving the handle in a reciprocating manner. When a nut or bolt to be rotated is near an obstruction, the handle can be unlocked, rotated about the connecting pin axis, then locked, thereby adjusting the angle between the longitudinal axis of the handle and the longitudinal axis of the ratchet head. In many instances, such angular adjustment allows the ratchet wrench to be used to rotate the nut or bolt in the conventional manner while avoiding contact between the handle and the obstruction.
REFERENCES:
patent: 928375 (1909-07-01), Frick
patent: 1109032 (1914-09-01), Bersted
patent: 1568442 (1926-01-01), Carver
patent: 1840685 (1932-01-01), Witherup
patent: 4406186 (1983-09-01), Gummow
patent: 4747328 (1988-05-01), Howard
patent: 4794829 (1989-01-01), Mosenhoeller
Clayborn William L.
Cone John M.
Meislin D. S.
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