Abstract: A golf club having a club head with a striking plate composed of a composite material and having a thickness in the range of 0.010 to 0.250 inches is disclosed herein. The golf club head also has a coefficient of restitution greater than 0.8 under test conditions such as the USGA test conditions specified pursuant to Rule 4-1e, Appendix II, of the Rules of Golf for 1998-1999. The golf club head body is also composed of a composite material, and a weight strip is placed within a ribbon of the body.

Abstract: A golf club head having a defined internal cavity, and a golf club head containing a bi-material weight having a nonhomogeneous structure is disclosed herein. A method to add the bi-material weight to the golf club entails heating, vibration and cooling to produce the nonhomogeneous structure is also disclosed herein.

Abstract: A golf club head has a weight compartment within a hollow interior, and a weight member that is injected into the weight compartment subsequent to formation of the body of the golf club head. The preferred weight member is bismuth. The golf club head has a body that has a volume between 140 cubic centimeters and 350 cubic centimeters. The body of the golf club head weighs between 140 grams and 215 grams.

Abstract: A golf club having an interior hosel that is disposed inward from a striking plate to allow for compliance of the striking plate during impact with a golf ball. The present invention also includes a method for producing the golf club in which the interior hosel is attached to a lateral extension of a face member. The lateral extension is connected to the striking plate. The striking plate is preferably composed of a forged titanium material.

Abstract: A golf club head has a weight compartment within a hollow interior, and a weight member that is injected into the weight compartment subsequent to formation of the body of the golf club head. The preferred weight member is bismuth. The golf club head has a body that has a volume between 140 cubic centimeters and 350 cubic centimeters. The body of the golf club head weighs between 140 grams and 215 grams.

Abstract: A golf club having a club head with a striking plate having a thickness in the range of 0.010 to 0.250 inch is disclosed herein. The club head may be composed of three pieces, a face, a sole and a crown. Each of the pieces may be composed of a titanium material. The striking plate of the club head may have an aspect ratio less than 1.7. The striking plate may also have concentric regions of thickness with the thickness portion in the center. The club head may be composed of a titanium material, have a volume in the range of 175 cubic centimeters to 400 cubic centimeters, a weight in the range of 165 grams to 300 grams, and a striking plate surface area in the range of 4.00 square inches to 7.50 square inches. The golf club head may also have a coefficient of restitution greater than 0.8 under test conditions such as the USGA test conditions specified pursuant to Rule 4-1e, Appendix 11, of the Rules of Golf for 1998-1999.

Abstract: The present invention is directed varying the thickness of a striking plate of a golf club head according to the loft angle of the golf club head. The thickness of the striking plate is greater for lower loft angles, such as seven, eight and nine degrees loft angle drivers, as compared to ten, eleven and twelve degrees loft angle drivers. The striking plate may have a variable face thickness with the thickest region near the center.

Abstract: 18A golf club head has a four-faceted sole. The golf club head has a body that has a volume between 140 cubic centimeters and 350 cubic centimeters. The body of the golf club head weighs between 140 grams and 215 grams. The golf club head preferably has a bismuth weighting system. The golf club head is preferably a driver, but may also be a fairway wood. The four-faceted sole is composed of a central facet, a toe facet, a heel facet and a rear facet.

Abstract: A golf club head having a striking plate with variable roll radius of curvature and a variable bulge radius of curvature is disclosed herein. The striking plate preferably has a large surface area which requires correction of off-center shots. The striking plate may be used on a fairway wood-type golf club head or a driver-type golf club head. The striking plate is preferably composed of steel or titanium.

Abstract: A golf club having a club head with a face component composed of a plurality of plies of pre-preg material and having a striking plate portion with a thickness in the range of 0.050 to 0.250 inches is disclosed herein. The golf club head also has a coefficient of restitution greater than 0.8 under test conditions such as the USGA test conditions specified pursuant to Rule 4-1e, Appendix II, of the Rules of Golf for 1998-1999. The golf club also has a crown component composed of a plurality of plies of pre-preg material and a sole component composed of a plurality of plies of pre-preg material.

Abstract: A golf club having products of inertia Ixy, Ixz and Iyz with absolute values below 100 g-cm2 is disclosed herein. The golf club has a large volume, a high moment of inertia, or both. Preferably, the moment of inertia, Izz, of the golf club head about a vertical axis Z through the center of gravity ranges from 3000 g-cm2 to 5000 g-cm2, and a moment of inertia, Iyy, about a horizontal axis Y through the center of gravity of the golf club head ranges from 1900 g-cm2 to 2050 g-cm2. Preferably, the golf club head is composed of plies of pre-preg sheets. The volume of the golf club head preferably varies from 300 cm3 to 600 cm3.

Abstract: A golf club head with a polymer insert having indicia printed directly on its surface is disclosed herein. The polymer insert is disposed in a recess of the club head, and is preferably composed of a thermosetting material. Preferably, an UV curable ink is utilized for the indicia. The UV ink is printed on the external surface of the insert through a transfer pad printing process, and then cured with UV energy. Preferably, the golf club head is a putter, and the insert is composed of a thermosetting polyurethane. The insert is preferably white, and the indicia is preferably multi-colored.

Abstract: A golf club (40) having a club head (42) with a face component (60) and an aft body (61) is disclosed herein. The face component (60) has a striking plate portion (72) and a return portion (74). The aft-body (61) is composed of a crown portion (62), a sole portion (64) and optionally a ribbon section (90). The face component (60) is composed of an amorphous metal material, and the aft-body (61) is composed of a non-metal material such as a composite material or a thermoplastic material. The club head (42) has a volume in the range of 290 cubic centimeters to 600 cubic centimeters, a weight in the range of 165 grams to 300 grams, and a striking plate portion (72) surface area in the range of 4.00 square inches to 7.50 square inches.

Abstract: A golf club having a club head composed of a composite material and having an enhanced sound during impact with a golf ball. The golf club head also has a coefficient of restitution greater than 0.8 under test conditions such as the USGA test conditions specified pursuant to Rule 4-1e, Appendix II, of the Rules of Golf for 1998-1999. The golf club head body has a weight strip placed within a ribbon of the body. The sound of the composite golf club head during impact with a golf ball is approximately equivalent to that of a metal wood during impact with a golf ball. The composite golf club head of the present invention has a combined sound level greater than one hundred seventeen decibels during impact with a golf ball.

Abstract: A golf club having a club head with a striking plate composed of a composite material and having a thickness in the range of 0.010 to 0.250 inches is disclosed herein. The golf club head also has a coefficient of restitution greater than 0.8 under test conditions such as the USGA test conditions specified pursuant to Rule 4-1e, Appendix II, of the Rules of Golf for 1998-1999. The golf club head body is also composed of a composite material, and a weight strip is placed within a ribbon of the body.

Abstract: A golf club having an interior hosel that is disposed inward from a striking plate to allow for compliance of the striking plate during impact with a golf ball. The present invention also includes a method for producing the golf club in which the interior hosel is attached to a lateral extension of a face member. The lateral extension is connected to the striking plate. The striking plate is preferably composed of a forged titanium material.

Abstract: The present invention is a golf club (30) having a club head main body (34) with a recess (38), an polymer insert (40) in the recess (38), an isolation layer (52) and a weight body (50). The polymer insert (40) is composed of a thermosetting polyurethane material having a Shore D hardness in the range of 42 to 55, and a Bayshore rebound in the range of 51 to 60. The preferred thermosetting polyurethane material is formed from a p-phenylene diisocyanate prepolymer and a curing agent. The golf club (30) is preferably a putter, however, it may be a wood or an iron. The particular thermosetting polyurethane provides a soft striking face for feel and a good rebound for distance. The weight body (50) is preferably composed of a tungsten alloy, and the isolation layer (52) is preferably composed of a thermoplastic polyurethane.