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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10420995 B1

PDFFull Text
Date of Patent:
Sep. 24, 2019

Filed:

Jul. 05, 2018

Golf club shaft

Applicant:

Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;

Inventors:

Kenji Takasu, Kobe, JP;

Takashi Nakano, Kobe, JP;

Assignee:

SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael D Dennis

Int. Cl.
CPC ...
A63B 53/10 (2015.01); A63B 1/00 (2006.01); A63B 53/04 (2015.01); A63B 102/32 (2015.01); B29L 31/52 (2006.01); B29C 70/54 (2006.01); B29K 105/08 (2006.01); B29K 307/04 (2006.01); B29K 63/00 (2006.01); B29C 70/32 (2006.01);
U.S. Cl.
CPC ...
A63B 53/10 (2013.01); A63B 1/00 (2013.01); A63B 53/047 (2013.01); A63B 53/0466 (2013.01); A63B 2102/32 (2015.10); A63B 2209/023 (2013.01); B29C 70/32 (2013.01); B29C 70/543 (2013.01); B29C 70/545 (2013.01); B29K 2063/00 (2013.01); B29K 2105/0881 (2013.01); B29K 2307/04 (2013.01); B29L 2031/5227 (2013.01);
Abstract

A shafthas a forward flex of equal to or longer than 130 mm and equal to or shorter than 178 mm. When the forward flex is represented by f, and a backward flex is represented by f, f/(f+f) is equal to or greater than 0.46 and equal to or less than 0.50. When a distance between a butt end Bt and a center of gravity Gs of the shaft is represented by L (centimeter), and a weight of the shaft is represented by Ws (kilogram), a butt end GLL is calculated by the following formula:butt endwherein the butt end GLL (kg·cm) is equal to or less than 110 kg·cm.

Find Patent Forward Citations

Takasu, Kenji. (2019). Golf club shaft (U.S. Patent No. 10420995). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10420995

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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