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 head including a body having a face, a sole, a crown, and a skirt joining the face, sole and crown, the body having a center of gravity, wherein the body includes an open end and a terminal end, the terminal end opposite the open end, a weighted insert having a heavy end and a lighter end, the lighter end opposite the heavy end, wherein the cavity is configured to receive the weighted insert through the open end, wherein the cavity includes a head locking member, wherein the weighted insert includes an insert locking member, wherein the head locking member includes a shelf and the insert locking member includes a flange, the flange configured to abut the shelf when the insert locking member is in a locked position; and a spring located between the insert locking member and the terminal end of the cavity.

Abstract: A golf club head, including a hosel, a 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 plurality of weight mounts disposed on at least one of the sole, the crown, and the skirt, and a weight retainer configured to engage the weight mounts, wherein each of the plurality of weight mounts comprise a locking feature, wherein the weight retainer comprises an engagement feature configured to engage the locking feature, wherein the engagement feature and the locking feature are configured to releasably lock the weight retainer to the golf club head in less than one full rotation of the weight retainer relative to the golf club head around an axis of rotation.

Abstract: A golf club head comprising a crown defining an upper surface of the golf club head; a sole defining a lower surface of the golf club head, wherein said sole is substantially convex in shape; a skirt extending between the crown and the sole; a face defining a ball-striking surface and intersecting said sole at a leading edge; an interior cavity defined by said crown, sole, skirt, and face; a coordinate system with an x-axis located horizontal to said face, a y-axis located vertical to said face, and a z-axis located through said face, said z-axis and said x-axis parallel to a ground plane when said golf club head is held at address on said ground plane; a depression formed in said sole, wherein said depression is substantially concave and protrudes inwards towards said interior cavity of said golf club head.

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 to improve the performance of the golf club head. More specifically, the present invention decouples the flexure from the remainder of the golf club head.

Abstract: A golf club head having an exterior surface opposite the hollow golf club interior, the body having a center of gravity, wherein the body comprises an elongate weight receptacle, a weight retainer located in the weight receptacle, wherein the weight receptacle comprises a plurality of weight mounts, wherein the weight retainer is configured to slide along the weight receptacle between each of the plurality of weight mounts when the weight retainer is unlocked, and wherein the weight retainer is configured to reside in any of the plurality of weight mounts when the weight retainer is locked, and wherein the weight receptacle comprises a weight receptacle installation feature configured to receive the weight retainer, wherein the weight receptacle installation feature is located between two of the plurality of weight mounts, wherein the two of the plurality of weight mounts are located adjacent one another.

Abstract: A golf club head, including a hosel, a 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 plurality of weight mounts disposed on at least one of the sole, the crown, and the skirt, and a weight retainer configured to engage the weight mounts, wherein each of the plurality of weight mounts comprise a locking feature, wherein the weight retainer comprises an engagement feature configured to engage the locking feature, wherein the engagement feature and the locking feature are configured to releasably lock the weight retainer to the golf club head in less than one full rotation of the weight retainer relative to the golf club head around an axis of rotation.

Abstract: A golf club head including an elongate weight receptacle; a weight retainer located in the weight receptacle; wherein the weight receptacle includes a plurality of weight mounts; wherein the weight retainer is configured to slide along the weight receptacle between each of the plurality of weight mounts when the weight retainer is unlocked, and wherein the weight retainer is configured to reside in any of the plurality of weight mounts when the weight retainer is locked; wherein the weight retainer includes a rotating portion and a non-rotating portion, the rotating portion rotatably affixed to the non-rotating portion; wherein 90 degrees of rotation of the rotating portion in a first direction relative to the non-rotating portion locks the weight retainer, and wherein 90 degrees of rotation of the rotating portion in a second direction relative to the non-rotating portion unlocks the weight retainer.

Abstract: A golf club head including a body having a face, a sole, a crown, and a skirt joining the face, sole and crown, the body having a center of gravity, wherein the body includes an open end and a terminal end, the terminal end opposite the open end, a weighted insert having a heavy end and a lighter end, the lighter end opposite the heavy end, wherein the cavity is configured to receive the weighted insert through the open end, wherein the cavity includes a head locking member, wherein the weighted insert includes an insert locking member, wherein the head locking member includes a shelf and the insert locking member includes a flange, the flange configured to abut the shelf when the insert locking member is in a locked position; and a spring located between the insert locking member and the terminal end of the cavity.

Abstract: A golf club head including a body having a face, a sole, a crown, and a skirt joining the face, sole and crown, the body having a center of gravity, wherein the body includes an open end and a terminal end, the terminal end opposite the open end, a weighted insert having a heavy end and a lighter end, the lighter end opposite the heavy end, wherein the cavity is configured to receive the weighted insert through the open end, wherein the cavity is configured to receive the weighted insert through the open end in both a first configuration and a second configuration, and wherein said weighted insert comprises a heavy portion comprising a high density portion and an abutment member.

Abstract: A golf club head including a body having a face, a sole, a crown, and a skirt joining the face, sole and crown, the body having a center of gravity, wherein the body includes an open end and a terminal end, the terminal end opposite the open end, a weighted insert having a heavy end and a lighter end, the lighter end opposite the heavy end, wherein the cavity is configured to receive the weighted insert through the open end, wherein the cavity is configured to receive the weighted insert through the open end in both a first configuration and a second configuration, and wherein said weighted insert comprises a slideable flange.

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. A slot is included in a portion of the golf club head and works with the flexure to further tune performance.

Abstract: A golf club head has a stranded structure such as a cantilevered strand or a beam strand. The stranded structure causes changes in acoustic properties from that of a standard golf club. A gap or through-hole around the stranded structure may be filled with a vibration dampening material, such as flexible polymer, to further adjust the acoustic properties of the golf club. Vibration frequency regions in a golf club may be modified by incorporating stranded structures in the vibration frequency regions.

Abstract: A golf club head comprising a crown defining an upper surface of the golf club head; a sole defining a lower surface of the golf club head, wherein said sole is substantially convex in shape; a skirt extending between the crown and the sole; a face defining a ball-striking surface and intersecting said sole at a leading edge; an interior cavity defined by said crown, sole, skirt, and face; a coordinate system with an x-axis located horizontal to said face, a y-axis located vertical to said face, and a z-axis located through said face, said z-axis and said x-axis parallel to a ground plane when said golf club head is held at address on said ground plane; a depression formed in said sole, wherein said depression is substantially concave and protrudes inwards towards said interior cavity of said golf club head.

Abstract: A golf club head including a face having a flat ball-striking surface and a body that form a flexure. The golf club head has a feature formed in a sole of the golf club head that provides a 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, and 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. A slot is included in a portion of the golf club head and works with the flexure to further tune performance.

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 head comprising a crown defining an upper surface of the golf club head; a sole defining a lower surface of the golf club head, wherein said sole is substantially convex in shape; a skirt extending between the crown and the sole; a face defining a ball-striking surface and intersecting said sole at a leading edge; an interior cavity defined by said crown, sole, skirt, and face; a coordinate system with an x-axis located horizontal to said face, a y-axis located vertical to said face, and a z-axis located through said face, said z-axis and said x-axis parallel to a ground plane when said golf club head is held at address on said ground plane; a depression formed in said sole, wherein said depression is substantially concave and protrudes inwards towards said interior cavity of said golf club head.

Abstract: A putter head comprising a body having an open, frame-like structure having an improved mass distribution for optimizing the moment of inertia and placement of the center of gravity. The body includes a front portion, a rear portion, toe and heel portions extending between and interconnecting respective ends of the front and rear portions, and a central portion interconnecting the front and rear portions along the longitudinal axis of the body. A first main opening of the body is bounded by the toe portion, the central portion, and part of the front portion. A second main opening of the body is bounded by the heel portion, the central portion, and part of the front portion. The heel and toe portions desirably are formed with respective elongated openings extending substantially the entire lengths of the heel and toe portions.