US Patent: 4,777,852 - Ratcheting Screwdriver


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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.