Method and apparatus for improving dynamic response of golf club

• US 20040224787A1
• Filed: 01/06/2004
• Published: 11/11/2004
• Est. Priority Date: 02/04/2002
• Status: Active Grant

• Current Assignee: Balance-Certified Golf Incorporated
• Original Assignee: Balance-Certified Golf Incorporated
• Inventors: Lindner, Jeffrey L.
• Granted Patent: US 7,261,641 B2
• Time in Patent Office: Days
• US Class Current: 473/316
• CPC Class Codes: A63B 53/14 Handles
• CPC Class Codes: A63B 60/22 Adjustable handles
• CPC Class Codes: A63B 60/24 Weighted handles
• CPC Class Codes: Y10T 403/7056 Threaded actuator

Abstract

An apparatus for improving the dynamic response of a golf club by selectively weighting the grip end of the club. One embodiment comprises a cylindrical member having a lower base portion and an upper housing portion. The base is sized to be inserted into the grip end of a golf club shaft with the upper housing extending wholly or partially from the end of the shaft. The housing has a hollow, open chamber in which a weighted insert is inserted and removably secured. Another embodiment comprises upper and lower complimentary cylindrical wedges, each with a bore along its longitudinal axis, sized to be inserted into the grip end of a golf club shaft and secured by a screw extending through the longitudinal bores and threaded into a threaded insert located in a cavity in the lower wedge.

Claims

1. A shaft extension for improving the dynamic response of a golf club having an elongated shaft with a lower head end and an upper grip end, the head end having a club head attached thereto and the grip end being hollow and having an inner and outer diameter, said shaft extension comprising:

a cylindrical member comprising a lower base sized for snug insertion in said grip end of said shaft and an upper housing of an external diameter slightly larger than the inner diameter of said grip end, whereby said housing extends from said shaft when said sleeve is inserted therein, said housing having a chamber therein open at the upper end thereof;

an insert of predetermined weight for insertion into said housing;

means for removably securing said insert to said housing.