Golf clubs and method of making thereof
First Claim
Patent Images
1. A method of making a golf club head which has:
- a) a blade having a toe, a heel, a top edge, a sole, a front, generally planar ball-striking surface extending from the toe to the heel, a rear surface extending from the toe to the heel, a recess so positioned in the rear surface that the weight of the blade is concentrated about the perimeter of the recess at the toe, the heel, the sole and the top edge thereof; and
b) a hosel for receiving the end of a golf club shaft connected to the heel of the blade at a neck;
c) the following composition by weight;
Al;
4.5 to 12%Fe;
0 to 5%Ni;
0 to 5%Mn;
0 to 12%Sn;
about 0.02%Pb;
about 0.07%Zn;
about 0.12%Si;
about 0.05%Cu;
The balance,wherein the method comprises the steps of casting the head in one piece, fettling the cast head as required, heat-treating the head by heating it to a temperature in the range 960°
C. to 980°
C. for a period of about two hours, water quenching the head, reheating the head to a temperature of about 450°
C. and then cooling it, and finally cleaning the cast, fettled and heat-treated head to a desired finish thereto.
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Abstract
The present invention provides for a method of making a golf club head which comprises the steps of casting the head in an alloy having copper and aluminum as its major constituents by weight, fettling the cast head as required, heat-treating the head by heating it to an temperature in the range 960° C. to 980° C. for a period of about two hours, water quenching the head, and finally of cleaning the cast, fettled and heat-treated head to give a desired finish thereto.
89 Citations
2 Claims
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1. A method of making a golf club head which has:
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a) a blade having a toe, a heel, a top edge, a sole, a front, generally planar ball-striking surface extending from the toe to the heel, a rear surface extending from the toe to the heel, a recess so positioned in the rear surface that the weight of the blade is concentrated about the perimeter of the recess at the toe, the heel, the sole and the top edge thereof; and b) a hosel for receiving the end of a golf club shaft connected to the heel of the blade at a neck; c) the following composition by weight; Al;
4.5 to 12%Fe;
0 to 5%Ni;
0 to 5%Mn;
0 to 12%Sn;
about 0.02%Pb;
about 0.07%Zn;
about 0.12%Si;
about 0.05%Cu;
The balance,wherein the method comprises the steps of casting the head in one piece, fettling the cast head as required, heat-treating the head by heating it to a temperature in the range 960°
C. to 980°
C. for a period of about two hours, water quenching the head, reheating the head to a temperature of about 450°
C. and then cooling it, and finally cleaning the cast, fettled and heat-treated head to a desired finish thereto.
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2. A golf club head comprising:
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a) a blade having a toe, a heel, a top edge, a sole, a front, generally planar ball-striking surface extending from the toe to the heel, a rear surface extending from the toe to the heel, a recess so positioned in the rear surface that the weight of the blade is concentrated about the perimeter of the recess at the toe, the heel, the sole and the top edge thereof; and b) a hosel for receiving the end of a golf club shaft connected to the heel of the blade at a neck; wherein the blade, hosel and neck are cast as a one-piece casting in an alloy having the following composition by weight; Al;
4.5 to 12%Fe;
0 to 5%Ni;
0 to 5%Mn;
0 to 12%Sn;
about 0.02%Pb;
about 0.07%Zn;
about 0.12%Si;
about 0.05%Cu;
The balance.
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Specification
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Current AssigneeCountry Club Golf Equipment Limited
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Original AssigneeCountry Club Golf Equipment Limited
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InventorsViljoen, Kenneth V., Elrick, Alistair
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Primary Examiner(s)Yee, Deborah
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Application NumberUS07/373,457Time in Patent Office1,019 DaysField of Search148/3, 148/13.2, 148/11 SC, 148/436, 420/489, 273/167 RUS Class Current473/350CPC Class CodesA63B 53/04 HeadsA63B 53/047 iron-typeA63B 53/0487 for putters A63B53/065 take...A63B 60/00 Details or accessories of g...C22C 9/01 with aluminium as the next ...C22F 1/08 of copper or alloys based t...
