Perimeter weighted golf clubs

• US 5,669,830 A
• Filed: 04/25/1996
• Issued: 09/23/1997
• Est. Priority Date: 03/15/1994
• Status: Expired due to Fees

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Pelican Golf Incorporated
• Inventors: Bamber, Jeffrey Vincent
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US08/637,860
• Time in Patent Office: 516 Days
• Field of Search: 473/350
• US Class Current: 473/350
• CPC Class Codes: A63B 2225/01 Special aerodynamic features, e.g. airfoil shapes, wings or air passages
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/006 Surfaces specially adapted for reducing air resistance

Abstract

Improved perimeter weighted golf clubs are disclosed. The perimeter weighted golf clubs of the present invention are provided with improved structures for distributing the weight at the perimeter of the club head. In one embodiment, the club head has a club face with a hitting surface and a spacer outboard of the hitting surface which connects the hitting surface and the weighted perimeter of the club head. The spacer can be any suitable structure, such as a thinned portion or a lighter weight portion of the club head. In another embodiment, the club head has a tubular frame which surrounds and supports at least a portion of the hitting surface. In these or other embodiments, the club head can have a structure that facilitates the desired rotation of the club face when the club is swung.

Claims

1. A golf club head comprising a club face which includes a hitting surface, a back surface having a cavity therein, said cavity having an upper portion, said club head having a heel portion, a toe portion, and a sole portion extending generally between said heel portion and said toe portion, an upper edge portion, a weighted perimeter portion which forms at least a portion of the perimeter of said club head, and at least two raised members on the back surface of said club head that extend from said upper portion of said cavity toward said upper edge portion of the perimeter of the club head.

2. The golf club head of claim 1 wherein said raised members comprise ribs formed on the back surface of said club head.

3. A perimeter weighted golf club head comprising a club face which includes a hitting surface, a back surface having a cavity therein, a heel portion, a toe portion, and a sole portion extending generally between said heel portion and said toe portion, a center of percussion, a region of reduced thickness laterally outboard of said center of percussion, a weighted perimeter portion which forms at least a portion of the perimeter of said club head, and raised members on the back surface of said club head that are disposed radially around said back surface and extend from at least a portion of said cavity toward the weighted perimeter portion of the club head.

4. The golf club head of claim 3 wherein said raised members comprise ribs formed on the back surface of said club head.

5. The golf club head of claim 4 wherein said raised members are linear.

6. The golf club head of claim 5 wherein at least some of said raised members extend generally outward from the center of percussion of said club head.

7. The golf club head of claim 6 wherein said raised members reinforce at least a portion of said club head.

8. The golf club head of claim 7 wherein said raised members extend to said weighted perimeter portion.

9. A perimeter weighted golf club head comprising a club face which includes a hitting surface, a back surface having a cavity therein, a center of percussion, a heel portion, a toe portion, and a sole portion extending generally between said heel portion and said toe portion, a weighted perimeter portion which forms at least a portion of the perimeter of said club head, said club head having a region of reduced thickness between the center of percussion of said club head and said weighted perimeter portion, and raised members comprising linear ribs that are formed on the back surface of said club head that are disposed radially around said back surface and at least some of said raised members extend from at least a portion of said cavity toward the weighted perimeter portion of the club head.