Sturm, Ruger & Company, Inc.

John K Thorne

Mark R Martinez

Thomas E Yost

Philip M Maier

Chester E Poplaski

A tool comprised of two or more components each composed of differing materials with one component being less dense and the other component having working surface characteristics. The first component may be made of a titanium alloy.

Tool having an attached working surface

A method for treating the surface of a golf club part having a non-smooth surface such as a part which has been cast. Preferably, in those instances where the part is cast, the part is abraded for example by tumbling or by directing a light sandblast against the part to create a low reflectivity surface. Such abrading roughens the golf club part so that greater contrast can be obtained using radiated beam treatment. Surface roughening can also be created by acid etch or other suitable method. The club part is mounted in a beam treatment station to permit projecting a radiated beam on selected areas of the part's surface resulting in the momentary and superficial melting or fusing of the surface which makes such areas less rough and more light reflective than adjacent surface areas. Patterns are formed by causing relative movement between the part and a high energy heat source such as a radiated beam. Preferably the heat source or beam is held fixed and the part mounted on a movable table. Table movement may be controlled by a programmable computer, or other suitable arrangement.

Method and apparatus for radiated beam marking of a golf club part and such part

A golf club part including a metal component requiring subsequent finishing steps after initial formation which part as photo chemically engraved artwork formed in its surface after completion of the finishing step. The method of fabrication and etching of the metal part includes application of photoresist material to the metal surface, use of graphic art film, masking of surface areas in which artwork will be created by subsequent photochemical engraving, thereafter stripping of the photoresist from the metal surface. Creation of customized patterns on graphic art films is accomplished utilizing a programmable computer.

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Prescott, AZ, United States of America

John K Thorne