Patent
Metal wood golf club head
| العنوان: | Metal wood golf club head |
|---|---|
| Patent Number: | 5,769,735 |
| تاريخ النشر: | June 23, 1998 |
| Appl. No: | 08/762,048 |
| Application Filed: | December 09, 1996 |
| مستخلص: | A metal wood club head for golf and a method for producing the metal wood golf club head relating to the present invention can transmit, to his hands through the shaft, the feeling of where on the club face the user hit the ball similar to persimmon heads so that the user can make progress in playing golf, cause little trouble to his elbows because of the decreased vibration at the impact of a shot, have sperior durability and impact resiliency, and are readily suitable for mass-production on the assembly line. The club head comprises a metal outer shell having a hollow inside portion and foamed metal arranged into the hollow inside portion which are united integrally. A main member of the club head may be a foamed metal. Then it is favorable that at least the face plate of the main member is covered with metal. The surface of the main member may be covered with a divided shell member. |
| Inventors: | Hosokawa, Toshihiro (Izumi, JPX) |
| Assignees: | Kabushiki Kaisha Hosokawaseisakusho (Izumi, JPX) |
| Claim: | I claim |
| Claim: | 1. A metal wood golf club head comprising |
| Claim: | a metal outer shell; and |
| Claim: | a foamed aluminum inside portion having a sequence of cells distributed throughout the entirety of said foamed aluinum inside portion and having an apparent specific gravity of about 0.2-0.3 and porosity of about 65-78%, and fixedly attached within the metal outer shell and formed integrally with said metal outer shell. |
| Claim: | 2. The metal golf club head recited in claim 1 wherein the majority of the golf club head by volume is foamed aluminum. |
| Claim: | 3. The metal golf club head of claim 2 and further comprising a face plate in contact with said metal shell, wherein said at least a surface of the face plate is covered with metal. |
| Claim: | 4. A metal golf club head comprising |
| Claim: | a divided metal outer shell having a first portion including a hollowed area and matable with a second portion having a hollowed area to completely surround and enclose said hollowed areas; and |
| Claim: | a foamed aluminum inside portion having a sequence of cells distributed throughout the entirety of said foamed aluminum inside portion and having an apparent specific gravity of about 0.2-0.3 and a porosity of about 65-78% and fixedly carried within said hollowed area. |
| Claim: | 5. The metal golf club head as recited in claim 4 wherein said first and second portion of said divided metal outer shell is a cast metal. |
| Claim: | 6. The metal golf club head as recited in claim 5 wherein said upper main member and said sole portion of said divided metal outer shell are press metal. |
| Current U.S. Class: | 473/332; 473/346; 473/349 |
| Current International Class: | A63B 5304 |
| Patent References Cited: | 1529009 March 1925 Carpenter 4145052 March 1979 Janssen 4214754 July 1980 Zebelean 4438931 March 1984 Motomiya 4824116 April 1989 Nagamoto 5007643 April 1991 Okumoto 5135227 August 1992 Okumoto 5288070 February 1994 Chen 5306450 April 1994 Okumoto 5647808 July 1997 Hosokawa |
| Primary Examiner: | Passaniti, Sebastiano |
| Attorney, Agent or Firm: | Harrington, Curtis L. |
| رقم الانضمام: | edspgr.05769735 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |