Golf club
First Claim
1. A metal iron type golf club designed for minimizing offsets from the center of moments and torque when the club strikes a ball comprising:
- a golf club having a heel and toe wherein the heel has a hosel extending therefrom adapted to receive a shaft therein;
a cavity within said club surrounded by at least a portion of the metal weight of said club established within a perimeter region outside of said cavity and wherein said perimeter region and said cavity extend from said toe toward said heel in a diminishing manner as to its overall cross sectional size and said cavity is closed from communication with said hosel;
means for closing said cavity formed as a plate welded to said club and overlying said cavity formed with an opening therethrough passing into said cavity;
means in said cavity for displacing a portion of said cavity and formed of a mass of plastic foam larger in size than the opening in said plate and having properties which enable said foam to be implaced through the opening of said plate; and
,means in said opening in said plate for sealing said foam within said cavity.
1 Assignment
0 Petitions
Accused Products
Abstract
A perimeter weighted hollow golfing iron having a foam core with an effective hitting area concentrated toward the center of moments is disclosed. The weight of the club is concentrated at the perimeter to provide for the center of moments and proximate effective hitting area over the core. The club is formed from an investment casting having a cavity and is made from a method whereby the club is originally cast with a tapered core which is later withdrawn. Thereafter, an end plate is implaced over the cavity and welded thereto with an opening for insertion of the foam with an epoxy plug filling the opening of the plate. An effective hitting area is established by means of a club holder having a transducer so that impacts through an impact device against the club face can be sensed by the transducer to provide signals to an output such as a CRT, digital or analog readout or oscilloscope.
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Citations
5 Claims
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1. A metal iron type golf club designed for minimizing offsets from the center of moments and torque when the club strikes a ball comprising:
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a golf club having a heel and toe wherein the heel has a hosel extending therefrom adapted to receive a shaft therein; a cavity within said club surrounded by at least a portion of the metal weight of said club established within a perimeter region outside of said cavity and wherein said perimeter region and said cavity extend from said toe toward said heel in a diminishing manner as to its overall cross sectional size and said cavity is closed from communication with said hosel; means for closing said cavity formed as a plate welded to said club and overlying said cavity formed with an opening therethrough passing into said cavity; means in said cavity for displacing a portion of said cavity and formed of a mass of plastic foam larger in size than the opening in said plate and having properties which enable said foam to be implaced through the opening of said plate; and
,means in said opening in said plate for sealing said foam within said cavity. - View Dependent Claims (2, 3, 4, 5)
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Specification