Abstract: A golf club head and a removable weight that is received in a receptacle of the golf club head. The weight includes a cap and a slug. The cap is removably coupled to the receptacle and includes a recess that receives a portion of the slug so that the cap and slug are able to rotate relative to each other. The slug includes an anti-rotation feature that prevents relative rotation between the slug and the receptacle and a lead-in portion.

Abstract: A golf club head including a hosel, a ball striking face, a sole extending aftward from a lower edge of the ball striking face, a crown extending aftward from an upper edge of the ball striking face, a skirt extending between the sole and the crown, a weight mount disposed on at least one of the sole, the crown, and the skirt, a weight member configured to reside in the weight mount, a fastener, a retainer configured to rotatably couple the fastener to the weight member, wherein the fastener goes from an unlocked position to a locked position in less than one full turn of the fastener relative to the weight mount, wherein rotation of the fastener compresses the retainer.

Abstract: A golf club head including a crown, a sole, a hosel, a face, a flexure, and a weight member. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency. The flexure is formed by a forward wall and a rearward wall that combine to form a recessed channel. The weight member is coupled to a weight mount that is at least partially disposed in the rearward wall of the flexure.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball. The flexure is tuned to vibrate, immediately after impact, at a predetermined frequency.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.

Abstract: A plurality of two or more golf clubs with improved weighting characteristics is disclosed. More specifically, the present invention discloses a specific relationship between the mass Mclub of the golf club and the length Lclub to help improve the performance of the golf club.

Abstract: A golf club head comprising a sole including a body sole portion and a sole plate portion that form the sole surface of the golf club head. The sole plate portion includes a sole plate member that is coupled to the body sole portion and that includes a weight mount. The sole plate member is constructed from a material having a density that is greater than a material of the body sole portion. A weight member is secured to the weight mount.

Abstract: A golf club head including a crown, a sole, a hosel, a face, a weight port, an internal cavity, and a stiffening member. The weight port is affixed to the sole. The stiffening member is located in the interior cavity and permanently affixed to the hosel. The stiffening member is also permanently affixed to the sole and the weight port.

Abstract: A plurality of two or more golf clubs with improved weighting characteristics is disclosed. More specifically, the present invention discloses a specific relationship between the mass Mclub of the golf club and the length Lclub to help improve the performance of the golf club.

Abstract: A golf club head is provided a weight system to adjust the center of gravity. In one embodiment, the weight system is a tube having a weight at one end that may be inserted into the golf club head to move the center of gravity at least forward and backward within 6 mm and up and down within 6 mm. Preferably, the tube is angled downward toward the face by at least 3 degrees. In another embodiment, the weight system may adjust the center of gravity of the golf club head along the x and z axis simultaneously using a weighted insert.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The shaft sleeve is removably coupled to the club head. Hosel and shaft sleeve alignment features provide discreet orientations between the shaft and club head.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The shaft sleeve is removably coupled to the club head. Hosel and shaft sleeve alignment features provide discrete orientations between the shaft and club head.

Abstract: A metalwood golf club head comprising a locally raised crown peak, wherein said crown peak defined as the highest point on an outer surface of the crown when the golf club head is grounded at prescribed lie and loft, a crown peak plane parallel to the ground plane, the crown peak plane passing through the crown peak, a crown cutoff plane parallel to the crown peak plane, the crown cutoff plane offset downwards towards said ground plane 5 mm along said y-axis from said crown peak plane, an upper crown portion located above said crown cutoff plane and defined by said crown cutoff plane and said outer surface of said crown, wherein a volume of said upper crown portion is greater than 2 cm3 and less than 7 cm3.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The golf club head includes a multi-material construction including a face member, a midsection and an aft member that allows optimization of the mass distribution of the golf club head. The flexure provides compliance during an impact between the golf club head and a golf ball.

Abstract: A golf club head comprising a variable thickness profile comprising a thick central portion; a transition portion; and a thin perimeter portion; wherein said transition portion surrounds said thick central portion; wherein said thin perimeter portion surrounds said transition portion; wherein said thick central portion comprises a center, said center of said thick central portion located equidistant from a heel most portion of said thick central portion and a toe most portion of said thick central portion; wherein said center of said thick central portion is offset from said geometric center of said striking face.

Abstract: A golf club head including a striking face, a posterior body portion including a crown portion and a sole portion, wherein the striking face includes a heel side and a toe side, a geometric face center, an impact area centered about the geometric face center and stretching a distance K towards the toe side from the geometric face center, and a distance K towards the heel side from the geometric face center, a toe area including the remainder of the striking on the toe side of the impact area, a heel area including the remainder of the striking face on the heel side of the impact area, wherein a maximum characteristic time of the striking face occurs outside of the impact area.

Abstract: A golf club head is presented comprising a sole including a weight member secured to a weight mount. The weight member is preferably constructed so that it has a low profile and so that it interacts with an angled abutment portion of the weight mount to locate the weight member in the golf club head.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The face is configured to provide varying stiffness while minimizing the change in thickness across the face. The flexure provides compliance during an impact between the golf club head and a golf ball.

Abstract: A golf club head optimized for sound has a body that defines an interior cavity. The body includes at least one of a sole portion, skirt portion, or a crown portion. At least the sole portion is stiffened to provide a higher frequency sound. The stiffened sole portion increases the frequency range of the golf club head by at least 300 Hz with an overall frequency of greater than about 3000 Hz. The stiffened sole portion provides a higher frequency sound with a minimal increase in the overall weight of the golf club head. In one embodiment, the stiffened sole portion increases the weight of the golf club head by less than 10 grams with the overall weight of the golf club head less than 220 grams. In operation, the golf club head with at least the stiffened sole portion impacts the golf ball to provide an aesthetically pleasing sound.