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.:
Date of Patent:
Jan. 06, 2015
Filed:
Mar. 12, 2013
Bridgestone Sports Co., Ltd., Minato-ku, Tokyo, JP;
Fumiaki Sato, Saitama, JP;
Bridgestone Sports Co., Ltd., Tokyo, JP;
Abstract
According to an aspect of this invention, a golf club head includes: a head main body; and a weight material detachably mounted in a weight material mounting portion in the head main body, an external screw thread on the weight material meshing with an internal screw thread in the weight material mounting portion, wherein: the weight material comprises a head portion having the external screw thread and a rod portion which projects from the head portion; and the internal screw thread is provided on an entrance side and a cylindrical portion is provided on a deeper side for engagement with the rod portion in the weight material mounting portion.