IP Library › Granted Patent US 7,255,652
Granted Patent B2
US 7,255,652 · App. 11/345,872 · Granted Aug 14, 2007

Lightweight, durable golf club shafts

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Quick Facts
Patent No.
US 7,255,652
App. No.
11/345,872
Granted
Aug 14, 2007
Kind
B2
Abstract

An ultra lightweight golf club shaft which includes a butt section, a tip section, and a tapered section interconnecting the same. The tapered section can be a constant taper, or include a plurality of step portions interconnected by frustoconical transition areas. The shafts are extremely durable and allow a faster club head speed and a better feel than with the previous prior art shafts.

Claims (10)

1. A lightweight golf club shaft, said shaft comprising:

a tip section;

a tapered section connected to said tip section; and

a butt section having a length of about 4 to about 16 inches connected to said tapered section, wherein said shaft is steel having a plating on an outer surface of said shaft, wherein said tapered section has a plurality of constant diameter step portions connected by transition areas having a taper angle of about 0.75 to about 3 degrees with respect to the longitudinal axis of the shaft, wherein said shaft has a weight of 92 to less than 95 grams when measured at 40 inches or 41 inches, and wherein said tip section has a length of about 2 to about 14 inches and a hosel end with an outer diameter greater than 0.310 inch.

2. The shaft according to claim 1 , wherein said butt section has an outer diameter of about 0.550 to about 0.625 inch, and wherein said tip section outer diameter is about 0.320 to about 0.370 inch.

3. The shaft according to claim 2 , wherein said shaft is about 92 grams to about 94.5 grams at 40 or 41 inches in length.

4. The shaft according to claim 1 , wherein about 10 to about 22 step portions are present and about 11 to about 23 transition areas are present.

5. The shaft according to claim 4 , wherein said shaft is about 92 grams to about 94.5 grams at 40 or 41 inches in length.

6. The shaft according to claim 5 , wherein said transition areas have an angle of about 1 to about 2 degrees with respect to a longitudinal axis of the shaft.

7. A set of shafts according to claim 5 .

Assignments (23)
RELEASE OF SECURITY INTEREST Recorded May 16, 2019
From: BMO HARRIS BANK N.A., AS THE ADMINISTRATIVE AGENT
To: TRUE TEMPER SPORTS, INC.
Reel/Frame 049201/0710 →
RELEASE OF SECURITY INTEREST Recorded May 16, 2019
From: LINCOLNSHIRE MANAGEMENT, INC., AS ADMINISTRATIVE AGENT
To: TRUE TEMPER SPORTS, INC.
Reel/Frame 049201/0896 →
SECURITY INTEREST Recorded May 16, 2019
From: TRUE TEMPER SPORTS, INC.
To: SUNTRUST BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 049204/0112 →
PATENT SECURITY AGREEMENT Recorded May 27, 2016
From: TRUE TEMPER SPORTS, INC.
To: BMO HARRIS BANK N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 038831/0987 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded May 27, 2016
From: REGIONS BANK, AS ADMINISTRATIVE AGENT
To: TRUE TEMPER SPORTS, INC.
Reel/Frame 038832/0042 →
RELEASE OF SECURITY INTEREST Recorded Aug 5, 2012
From: BANK OF AMERICA, N.A.
To: TRUE TEMPER SPORTS, INC.
Reel/Frame 028725/0906 →
SECURITY AGREEMENT Recorded Jul 26, 2012
From: TRUE TEMPER SPORTS, INC.
To: REGIONS BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 028652/0326 →
RELEASE OF SECURITY INTEREST ON PATENTS Recorded Jun 6, 2012
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: TRUE TEMPER SPORTS, INC.; NEW TRUE TEMPER CORPORATION, INC.
Reel/Frame 028327/0094 →
RELEASE OF SECURITY INTEREST ON PATENTS Recorded Jun 5, 2012
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: TRUE TEMPER SPORTS, INC.; NEW TRUE TEMPER CORPORATION, INC.
Reel/Frame 028323/0664 →
SECURITY AGREEMENT Recorded Jan 6, 2011
From: TRUE TEMPER SPORTS, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 025592/0384 →
PATENT SECURITY AGREEMENT Recorded Dec 28, 2009
From: TRUE TEMPER SPORTS, INC.; NEW TRUE TEMPER CORPORATION, INC.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 023708/0191 →
RELEASE OF SECOND LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT RECORDED AT REEL 19063/FRAME 0723 Recorded Dec 22, 2009
From: LAW DEBENTURE TRUST COMPANY OF NEW YORK (AS SUCCESSOR IN INTEREST TO CREDIT SUISSE, CAYMAN ISLANDS BRANCH)
To: TRUE TEMPER CORPORATION; TRUE TEMPER SPORTS, INC.
Reel/Frame 023691/0848 →
RELEASE OF AFTER-ACQUIRED INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST SUPPLEMENTAL FILING) Recorded Dec 21, 2009
From: CREDIT SUISSE AG (FORMERLY CREDIT SUISSE, CAYMAN ISLANDS BRANCH)
To: TRUE TEMPER CORPORATION; TRUE TEMPER SPORTS, INC.
Reel/Frame 023679/0789 →
SECURITY AGREEMENT Recorded Dec 14, 2009
From: TRUE TEMPER SPORTS, INC.; NEW TRUE TEMPER CORPORATION, INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
Reel/Frame 023649/0308 →
ASSIGNMENT AND ASSUMPTION AGREEMENT Recorded Jul 8, 2009
From: CREDIT SUISSE, CAYMAN ISLANDS BRANCH AS SECOND LIEN AGENT
To: LAW DEBENTURE TRUST COMPANY OF NEW YORK
Reel/Frame 022928/0090 →
SECOND LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Mar 26, 2007
From: TRUE TEMPER SPORTS, INC.
To: CREDIT SUISSE, CAYMAN ISLANDS BRANCH
Reel/Frame 019063/0723 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST SUPPLEMENTAL FILING) Recorded Feb 23, 2007
From: TRUE TEMPER SPORTS, INC.
To: CREDIT SUISSE, CAYMAN ISLANDS BRANCH
Reel/Frame 018923/0561 →
DISCHARGE OF SECURITY INTEREST IN PATENTS Recorded Jun 13, 2006
From: THE CIT GROUP/BUSINESS CREDIT, INC.
To: FM PRECISION GOLF MANUFACTURING CORP.; ROYAL PRECISION, INC.; FMPGMC SUB INC.
Reel/Frame 017766/0860 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 9, 2006
From: ROYAL PRECISION, INC.; FM PRECISION GOLF MANUFACTURING CORP.; FMPGMC SUB INC.
To: TRUE TEMPER SPORTS, INC.
Reel/Frame 017746/0795 →
SECURITY AGREEMENT Recorded Jun 2, 2006
From: FMPGMC SUB INC.
To: CIT GROUP/BUSINESS CREDIT, INC., THE
Reel/Frame 017957/0111 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2006
From: ROYAL PRECISION, INC.
To: FM PRECISION GOLF MANUFACTURING CORP.
Reel/Frame 017663/0536 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2006
From: FM PRECISION GOLF MANUFACTURING CORP.
To: FMPGMC SUB INC.
Reel/Frame 017675/0270 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2006
From: BRALY, W. KIM; SPRAGUE, WILLIAM G.
To: ROYAL PRECISION, INC.
Reel/Frame 017434/0340 →