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1. WO2000038797 - BI-MATERIAL GOLF CLUB HEAD HAVING AN ISOLATION LAYER

Publication Number WO/2000/038797
Publication Date 06.07.2000
International Application No. PCT/US1999/030715
International Filing Date 22.12.1999
Chapter 2 Demand Filed 12.07.2000
IPC
A63B 53/04 2006.01
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
53Golf clubs
04Heads
A63B 59/00 2006.01
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
59Bats, rackets or the like, not covered by groups A63B49/-A63B57/101
CPC
A63B 2053/0416
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
53Golf clubs
04Heads
0416Heads with an impact surface provided by a face insert
A63B 2053/042
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
53Golf clubs
04Heads
0416Heads with an impact surface provided by a face insert
042the face insert consisting of a material different from that of the head
A63B 2053/0491
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
53Golf clubs
04Heads
0491with added weights, e.g. changeable, replaceable
A63B 2209/00
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
2209Characteristics of used materials
A63B 53/0487
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
53Golf clubs
04Heads
0487for putters
A63B 60/02
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
60Details or accessories of golf clubs, bats, rackets or the like
02Ballast means for adjusting the centre of mass
Applicants
  • CALLAWAY GOLF COMPANY [US/US]; 2285 Rutherford Road Carlsbad, CA 92008-8815, US
Inventors
  • HETTINGER, Ronald, K.; US
  • HALL, J., Neil; US
  • ROLLINSON, Augustin, A.; US
  • SARKAR, Kamal; US
Agents
  • CATANIA, Michael, A.; Callaway Golf Company 2285 Rutherford Road Carlsbad, CA 92008-8815, US
Priority Data
09/222,23728.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BI-MATERIAL GOLF CLUB HEAD HAVING AN ISOLATION LAYER
(FR) TETE DE CLUB DE GOLF A DEUX MATERIAUX, DOTEE D'UNE COUCHE ISOLANTE
Abstract
(EN)
A bi-metallic golf club head (10) having a weight body (16) for lowering the center of gravity of the golf club head (10) in order to increase vertical gear effect upon impact with a golf ball, while also providing for an isolation layer (14) between the golf club head's weight body (16) and a main body portion (12) comprising a ball striking front section (30). One purpose of the isolation layer (14) is to isolate, or reduce the combination of, the impact vibration frequency pattern of the main body (12) and the vibration frequency pattern of the weight body (16), thereby preserving the desirable feel and playability of a single metal golf club head while enjoying the improved performance of a low center of gravity golf club head (10). Another purpose of the isolation layer (14) is to minimize or reduce the galvanic/intermetallic reaction between two different metallic materials that are placed in direct contact.
(FR)
L'invention concerne une tête de club de golf bi-métallique (10) comportant un corps formant poids (16) pour faire descendre le centre de gravité de la tête de club de golf (10) et augmenter l'effet dynamique vertical lors de l'impact avec une balle de golf, une couche isolante (14) étant également prévue entre le corps formant poids (16) de la tête du club de golf et une partie corps principale (12) présentant une partie frontale (30) de frappe de la balle. La couche isolante (14) est destinée entre autres, à isoler ou à réduire la combinaison du motif de fréquence de vibration à l'impact du corps principal (12) et du motif de vibration du corps formant poids (16), ce qui permet de conserver la même sensation de jeu et la jouabilité qu'avec une tête de club de golf monométallique et de bénéficier de la performance accrue d'une tête de club de golf (10) à centre de gravité bas. La couche isolante (14) permet de minimiser ou de réduire la réaction galvanique/intermétallique entre les deux matériaux métalliques qui sont placés en contact direct.
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