Abstract: 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.

Abstract: A method of making a golf club head and the head itself which club head has two or more portions. Each portion comprises metals of differing characteristics. One portion may be made of ductile metal to facilitate bending.

Abstract: A method and apparatus for creating a pattern in the surface of a golf club part having a surface area lacking smoothness using a radiated beam to make portions of such surface smoother. The disclosure is also directed to the golf club part created by the operation of such method and apparatus.

Abstract: 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.

Abstract: 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.

Abstract: Heat transfer tubing adapted to be submerged in a liquid to be boiled as a result of transfer of heat from the interior of the tube to the liquid. The exterior of the tubing has elongated circumferentially extending confined spaces of substantially uniform cross-section and provided with effectively continuous circumferentially extending elongated restricted openings provided at circumferentially spaced zones with substantial enlargements.

Abstract: Low cost solar collector panel utilizes surface mounted tubing in which the inner wall portion of the tubing is copper to permit the use of untreated water in the system. The outer wall portion of the tubing is aluminum which provides additional strength and is easily attached to a low cost aluminum absorber plate. A method of producing the composite aluminum-copper tubing in long length coils is disclosed. The tubing can also be formed into connectors for connecting copper and aluminum tubing together.