IP Library › Granted Patent US 11,097,166
Granted Patent B1
US 11,097,166 · App. 17/003,679 · Granted Aug 24, 2021

Putter with bi-material shaft

Inventor: Augustin W. Rollinson (Solana Beach, CA)
Assignee: Callaway Golf Company
A63B53/007A63B53/10A63B53/12A63B60/08
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Quick Facts
Patent No.
US 11,097,166
App. No.
17/003,679
Granted
Aug 24, 2021
Kind
B1
Abstract

A process for manufacturing a putter with a bi-material shaft is disclosed herein. The putter comprises a putter head, the bi-material shaft, a mass member and a grip. The bi-material shaft comprises a body with a tip end and a butt end. The body comprises a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point. The mass member is positioned within an opening at the butt end of the shaft. Mass from the shaft is transferred to the club head and the mass member in the butt end of the shaft.

Claims (15)

1. A shaft comprising:

a body with a tip end and a butt end, the body comprising a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point; and

a mass member positioned within an opening at the butt end of the shaft;

wherein the composite section is from 60 to 80 percent of the length of the shaft and the composite section is less than 50 percent of the mass of the shaft.

2. The shaft according to claim 1 wherein the mass member has a mass ranging from 20 grams to 40 grams.

3. The shaft according to claim 1 wherein the mass member has a mass of 30 grams.

4. A golf club comprising:

a club head; and

a shaft comprising:

a body with a tip end and a butt end, the body comprising a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point, and

a mass member positioned within an opening at the butt end of the shaft;

wherein mass of the golf club is focused in the club head and the mass member in the butt end of the shaft;

wherein the composite section is from 60 to 80 percent of the length of the shaft and the composite section is less than 25 percent of the mass of the shaft.

5. The golf club according to claim 4 wherein the mass member has a mass ranging from 20 grams to 40 grams.

6. The golf club according to claim 4 wherein the mass member has a mass of 30 grams.

Assignments (3)
SECURITY INTEREST Recorded May 17, 2023
From: TOPGOLF CALLAWAY BRANDS CORP.; OGIO INTERNATIONAL, INC.; TOPGOLF INTERNATIONAL, INC.; TRAVISMATHEW, LLC; WORLD GOLF TOUR, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 063692/0009 →
SECURITY AGREEMENT Recorded May 16, 2023
From: TOPGOLF CALLAWAY BRANDS CORP. (FORMERLY CALLAWAY GOLF COMPANY); OGIO INTERNATIONAL, INC.; TOPGOLF INTERNATIONAL, INC.; TRAVISMATHEW, LLC; WORLD GOLF TOUR, LLC
To: BANK OF AMERICA, N.A, AS COLLATERAL AGENT
Reel/Frame 063665/0176 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2020
From: ROLLINSON, AUGUSTIN W.
To: CALLAWAY GOLF COMPANY
Reel/Frame 053606/0937 →
Continuity (3)
Continuation 16692880 · Nov 22, 2019
Continuation 16368346 · Mar 28, 2019
Provisional Application 62654052 · Apr 6, 2018
Cited By (1)
US 12,303,747