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US Patent: 6,079,298
Ergonomic handle and driver incorporating same
Patentees:
Nancy C. Rittmann Gasperi (exact or similar names) - Racine, WI
Steven R. Wente (exact or similar names) - Kenosha, WI

USPTO Classifications:
81/177.1, 81/489, 81/60, 81/63.1, D8/107, D8/25

Tool Categories:
wrenches : ratchet wrenches

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

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Mar. 18, 1998
Granted: Jun. 27, 2000

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Snap-On Tools Company History
Description:
Seyfarth, Shaw, Fairweather & Geraldson - patent attorneys

Abstract

A palm driver has a rotatable drive member and an ergonomic handle body connected to the drive member through a ratchet mechanism and covered by a cushioning grip. The handle body is asymmetrically curved and is substantially continuously convex along portions engageable in use with the user's hand, having a generally flattened top surface opposite the drive member and receivable in the user's palm, and a peripheral side surface which has a plan outline which is continuously convex and has a generally flattened heel portion and an opposed, much smaller radius finger portion, respectively engageable with the heel and fingers of the user's hand in use.

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