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Golf club and head thereofGolf club and head thereof description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080020862, Golf club and head thereof. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATION [0001]This application claims the priority benefit of U.S. provisional application Ser. No. 60/807,614, filed on Jul. 18, 2006, all disclosure of the U.S. application is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002]1. Field of the Invention [0003]The present invention generally relates to a golf club head. More particularly, the present invention relates to a golf club head with high coefficient of reaction (COR). [0004]2. Description of Related Art [0005]Sports are becoming more and more popular, and golf has already become one of the most widely enjoyed sports. In addition, the number of participants in the sport of golf has risen rapidly. In which, the golf club used for playing golf, because of the varieties in purposes and course geographies, are categorized into different types such as wood club, iron club, and putter. [0006]With respect to the wood club, the head thereof typically comprises a shell and a striking plate on the shell for use to strike the ball. When the golf club head strikes a golf ball, the striking plate receives a large impact and produces a reacting force to the golf ball, and thus the golf ball obtains the kinetic energy transferred from the reacting force for a long distance flight. Therefore, a high coefficient of reaction (COR) is required, so as to enhance the reacting force and effectively transfer most of the kinetic energy to the golf ball. Furthermore, a long contact time between the golf ball and the striking plate is preferred to improve the effect of ball controlling and hitting. SUMMARY OF THE INVENTION [0007]Accordingly, the present invention is directed to a golf club head which has a high coefficient of reaction and provides a long contact time when striking a golf ball. [0008]The present invention is further directed to a golf club having the above golf club head to provide superior effect of ball controlling and hitting. [0009]As embodied and broadly described herein, the present invention provides a golf club head comprising a striking plate, a shell together with the striking plate to form a main body, and a power zone disposed on the shell. The power zone satisfies equations that (S/W)=4.about.40 and ((d1+d2)/d1)=1.6.about.6, wherein S is a distance from a center of the striking plate to an edge of the power zone along the outer surface, W is a width of the power zone, d1 is a thickness of the shell, and d2 is a thickness of the power zone. [0010]According to an embodiment of the present invention, S is less than 120 mm. [0011]According to an embodiment of the present invention, S is a constant. [0012]According to an embodiment of the present invention, W is a constant. [0013]According to an embodiment of the present invention, d1 is a constant. [0014]According to an embodiment of the present invention, d2 is a constant. [0015]According to an embodiment of the present invention, the thickness d2 of the power zone gradually varies outward from the striking plate. [0016]According to an embodiment of the present invention, the power zone is a continuous pattern. [0017]According to an embodiment of the present invention, the power zone is a discontinuous pattern comprising a plurality of sub-patterns. [0018]For example, the sub-patterns may comprise a plurality of stripes arranged in a ring. In addition, the distance from the center of each of the stripes to the center of another adjacent stripe may a constant. [0019]Furthermore, the sub-patterns may comprise a plurality of sub-rings. The sub-rings may be arranged in parallel. The distance from the center line of each of the sub-rings to the center line of another adjacent sub-ring may be a constant. Alternatively, the distance from the center line of each of the sub-rings to the center line of another adjacent sub-ring may gradually vary outward from the striking plate. [0020]Each of the above sub-rings may further comprise a plurality of stripes. The distance from the center of each of the stripes to the center of another adjacent stripe may be a constant. [0021]According to an embodiment of the present invention, the striking plate is integrally formed with the shell. Continue reading about Golf club and head thereof... Full patent description for Golf club and head thereof Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Golf club and head thereof patent application. Patent Applications in related categories: 20090291775 - Wood-type golf club head - A wood-type hollow golf club head has a lateral moment of inertia Ma and a vertical moment of inertia Mb which has a ratio (Mb/Ma) of not less than 0.80. The head can be provided with a hollow structure divided in the front-back direction of the head into a front ... ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Golf club and head thereof or other areas of interest. ### Previous Patent Application: Adjustable weight golf clubs Next Patent Application: Solid golf ball Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Golf club and head thereof patent info. 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