US2009017937A1PendingUtilityA1

Wood-type golf club head

Assignee: SRI SPORTS LTDPriority: Jul 13, 2007Filed: Jul 9, 2008Published: Jan 15, 2009

Est. expiryJul 13, 2027(~1 yrs left)· nominal 20-yr term from priority

Inventors:Hitoshi Oyama

A63B 53/0466A63B 53/0408

PatentIndex Score

Cited by

References

Claims

Abstract

A wood-type golf club head comprises a hollow structure having a geometrical arrangement for improving the directionality and carry distance of the struck ball, wherein the ratio (W/L) of a size (W) of the head in the back-and-forth direction to a size (L) of the head in the toe-heel direction is 0.85 to 1.0; and the ratio (FP/GL) of a face progression (FP) of the head to a depth (GL) of the center of gravity of the head is 0.50 to 0.75.

Claims

exact text as granted — not AI-modified

1 . A wood-type golf club head comprising a hollow structure wherein
 the ratio (W/L) of a size (W) of the head in the back-and-forth direction to a size (L) of the head in the toe-heel direction is 0.85 to 1.0, and   the ratio (FP/GL) of a face progression (FP) of the head to a depth (GL) of the center of gravity of the head is 0.50 to 0.75.   
   
   
       2 . The golf club head according to  claim 1 , which has a head volume of from 400 to 470 cc. 
   
   
       3 . The golf club head according to  claim 1 , which has a lateral moment of inertia of from 4000 to 5900 g sq.cm. 
   
   
       4 . The golf club head according to  claim 2 , which has a lateral moment of inertia of from 4000 to 5900 g sq.cm. 
   
   
       5 . The golf club head according to  claim 1 , wherein the ratio (FP/GL) is 0.65 to 0.75. 
   
   
       6 . The golf club head according to  claim 1 , wherein 0=&lt;(FP/GL)−0.6X(W/L)=&lt;0.19.

Join the waitlist — get patent alerts

Track US2009017937A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.