Rotational molded golf club head

Patent metadata

Field	Value
Publication number	US-2018072007-A1
Application number	US-201715815828-A
Country	US
Kind code	A1
Filing date	Nov 17, 2017
Priority date	Apr 5, 2007
Publication date	Mar 15, 2018
Grant date	—

Abstract

Wood-type golf clubs and/or golf club heads include: (a) a golf club head base member including a face member having a ball striking face; and (b) a polymeric body member engaged with the golf club head base member, wherein the polymeric body member is formed via a rotational molding process (or other centrifugal force inducing molding process) and/or engaged with the golf club head base member via a rotational molding process (or other centrifugal force inducing molding process). The polymeric body member forms at least a portion of a crown member of the club head in some structures.

First claim

We claim:

1 . A golf club head, comprising:
a golf club head base member comprising a face portion, a crown portion, a sole portion, a body member portion, and a hosel area, wherein the face portion, the crown portion, the sole portion, the body member portion, and the hosel area are integrally formed or engaged with each other to form a unitary structure, a polymeric body comprising a crown portion and a body portion, wherein
the polymeric body forms the top and rearmost portions of the overall club head structure,
at least some portion of the polymeric body is engaged with at least some portion of the base member, and
at least some portion of an exterior surface of the polymeric body is coated with a metal containing material.

2 . A golf club head according to claim 1 , wherein the polymeric body is epoxied to the base member.

3 . A golf club head according to claim 1 , wherein the polymeric body is engaged with the base member via mechanical connectors.

4 . A golf club head according to claim 1 , wherein a portion of the base member is coated with a metal containing material.

5 . A golf club head according to claim 1 , wherein the polymeric body forms a portion of the sole of the club head.

6 . A golf club head according to claim 1 , wherein at least a portion of the base member is formed from a metal material including but not limited to: metals or metal alloys containing steel, titanium, magnesium, aluminum, and other metallic elements.

7 . A golf club head, comprising:
a golf club head base member comprising a face portion, a crown portion, a sole portion, a body member portion, and a hosel area, wherein the face portion, the crown portion, the sole portion, the body member portion, and the hosel area are integrally formed or engaged with each other to form a unitary structure, a polymeric body comprising a crown portion and a body portion, wherein
the polymeric body forms the top and rearmost portions of the overall club head structure, and
at least some portion of the polymeric body is engaged with at least some portion of the base member.

8 . A golf club head according to claim 7 , wherein the polymeric body is epoxied to the base member.

9 . A golf club head according to claim 7 , wherein the polymeric body is engaged with the base member via mechanical connectors.

11 . A golf club head according to claim 7 , wherein the polymeric body forms a portion of the sole of the club head.

12 . A golf club head according to claim 7 , wherein at least a portion of the base member is formed from a metal material including but not limited to: metals or metal alloys containing steel, titanium, magnesium, aluminum, and other metallic elements.

13 . A golf club head according to claim 7 , wherein at least a portion of the base member is formed from a polymeric material including but not limited to: polyethylene materials, polyvinylchlorides and polyvinylchloride plastisols, nylons or other polyamides, and polypropylenes.

14 . A golf club head according to claim 7 , wherein at least a portion of the base member is formed from a composite material including but not limited to: carbon fiber composites and basalt fiber composites.

15 . A golf club head according to claim 7 , wherein at least a portion of the polymer body forms a shell-like structure on the interior wall of at least a portion of the base member. (not worded this way in spec but can be supported from provided spec information)

16 . A golf club head according to claim 7 , wherein at least some portions of the base member provide a frame member that extends rearward and underlies and/or is embedded in at least some parts of the polymeric body.

17 . A golf club head according to claim 16 , wherein the frame member comprises a plurality of openings defined through it, including at least a first opening and a second opening, wherein
the first opening and the second opening are separated from one another by a part of the frame member.

18 . A golf club head according to claim 16 , wherein the frame member comprises a polymeric or composite material.

19 . A golf club head according to claim 16 , wherein at least some portion of an exterior surface of the polymeric body is coated with a metal containing material.

Assignees

• Karsten Mfg Corp

Inventors

• Stites John T
• Tavares Gary G
• Waatti Todd A

Classifications

• A63B2053/0491

  with added weights, e.g. changeable, replaceable · CPC title

• A63B53/04

  Heads · CPC title

• B29C70/681

  Component parts, details or accessories; Auxiliary operations · CPC title

• B29C41/04

  Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould · CPC title

• A63B53/0487

  for putters (A63B53/065 takes precedence) · CPC title