Multiple radius grip
Patent 4964192 Issued on October 23, 1990. Estimated Expiration Date: 
April 24, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 24, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 144446 D191751 D248616 D273935 D300506 2425245 2466719 2716559 2877018 Arthritic golf club grip InventorAssigneeApplicationNo. 342489 filed on 04/24/1989US Classes:16/421, Handle having mounted grip means (e.g., bicycle handlebar grips, etc.)16/430, Handle with ergonomic structure (e.g., finger engagement structure such as indents, grooves, etc.) and handle user-interaction (human engineering) enhancements such as improved handle dimensions and handle positioning74/551.9, Handholds and grips81/489, HANDLE FOR TOOL473/203, Integral handle having finger conforming configurations473/551Having hand or finger conforming contour, through-hole for finger, portion overlying back of hand, projecting hand stop or positioner spaced from butt, wrist strap, or nonstandard transverse cross-sectionExaminersPrimary: Seidel, Richard K.Assistant: Brown, David H. Attorney, Agent or FirmForeign Patent References
International ClassB62K 023/00AbstractA cushioned grip having a unitary tubular-shaped body portion with an asymmetrical off-center cross-sectional shape. The asymmetrical off-center shape provides increased cushioning on portions thereof while retaining a moderate sized circumference. The asymmetrical cross-sectional shape provides a first portion having a first thickness of cushioning material, a second portion having a second lower thickness of cushioning material and a third portion of further reduced thickness of cushioning material. The third portion of cushioning is provided with a flat surface to provide a positive and solid feel to the fingers while grabbing the grip. The center's curvature defined by the outside of the cross-sectional shape of the grip is displaced from the center of the inside portion which is generally circular and adapted to receive a hard round member such as a bicycle handlebar to be cushioned. The cushioning thickness may vary from a relatively small value at one end of the grip to a maximum in a central region and reducing again to a smaller thickness at the other end to provide a varying circumference for different size hands.Other References
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