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US Patent: 4,777,852
Ratcheting Screwdriver
Patentees:
Timm R. Herman (exact or similar names) - Kenosha, WI
Donald J. Caldwell (exact or similar names) - Milwaukee, WI
Allan J. Bliemeister (exact or similar names) - Kenosha, WI
Eric T. Gustafson (exact or similar names) - Racine, WI
Mark S. Bakula (exact or similar names) - Muskego, WI

USPTO Classifications:
81/63.1

Tool Categories:

Assignees:
Snap-On Tools Corp. - Kenosha, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Oct. 02, 1986
Granted: Oct. 18, 1988

Patent Pictures:
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Snap-On Tools Company History
Description:
Emrich & Dithmar - patent attorneys

Abstract

The ratcheting screwdriver comprises a handle having a bore and a keyway substantially tangent thereto. In the bore is a gear and in the keyway are a pair of pawls which are movable individually into and out of engagement with the gear. An actuator is provided at the forward end of the handle to move these pawls. A cap operates the actuator.

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