| Patent application number | Description | Published |
|---|
| 20090075749 | INTERCHANGABLE SHAFT AND CLUB HEAD CONNECTION SYSTEM - Disclosed herein is a golf club including a shaft, a club head and several devices for releasably connecting the shaft to the club head. | 03-19-2009 |
| 20090105010 | GOLF CLUB WITH OPTIMUM MOMENTS OF INERTIA IN THE VERTICAL AND HOSEL AXES - A golf club is provided having a hollow body golf club head comprising discrete concentrations of weight or mass located away from the center of gravity or the geometric center of the club head to optimize the moment of inertia of the club head about both the vertical axis running through the center of gravity or geometric center of the club head, hereinafter referred to as the “y-axis,” and the axis running through the center of the shaft of the golf club, hereinafter referred to as the “hosel axis.” The ratio of moment of inertia of the club head about the y-axis to moment of inertia of the club head about the hosel axis is preferably 0.55. More preferably, this ratio is 0.75. | 04-23-2009 |
| 20090143168 | METAL WOOD CLUB WITH IMPROVED MOMENT OF INERTIA - A more efficient triangular shape for metal wood clubs or driver clubs is disclosed. This triangular shape allows the clubs to have higher rotational moments of inertia in both the vertical and horizontal directions, and a lower center of gravity. | 06-04-2009 |
| 20090156329 | GOLF CLUB WITH OPTIMUM MOMENTS OF INERTIA IN THE VERTICAL AND HOSEL AXES - A golf club is provided having a hollow body golf club head comprising discrete concentrations of weight or mass located away from the center of gravity or the geometric center of the club head to optimize the moment of inertia of the club head about both the vertical axis running through the center of gravity or geometric center of the club head, hereinafter referred to as the “y-axis,” and the axis running through the center of the shaft of the golf club, hereinafter referred to as the “hosel axis.” The ratio of moment of inertia of the club head about the y-axis to moment of inertia of the club head about the hosel axis is preferably 0.55. More preferably, this ratio is 0.75. | 06-18-2009 |
| 20090247316 | INTERCHANGEABLE SHAFT AND CLUB HEAD CONNECTION SYSTEM - Disclosed herein is a golf club including a shaft, a club head and several devices for releasably connecting the shaft to the club head. | 10-01-2009 |
| 20090264214 | INTERCHANGEABLE SHAFT SYSTEM - 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. | 10-22-2009 |
| 20090286615 | GOLF CLUB WITH OPTIMUM MOMENTS OF INERTIA IN THE VERTICAL AND HOSEL AXES - A hollow golf club is provided having an outer shell and an inner frame. The outer shell comprises one or more lightweight members, such as the crown or the skirt, and preferably fits within an envelope of about 5 inches×5 inches×2.8 inches. The inner frame fits within a smaller envelope and sits on the sole of the club head. One or more weights are located either on or within the inner frame to optimize the moment of inertia of the club head about both the vertical axis running through the center of gravity or geometric center of the club head, hereinafter referred to as the “y-axis,” and the axis running through the center of the shaft of the golf club, hereinafter referred to as the “hosel axis.” The weights can be attached to the inner frame or can be distributed within the inner frame. In another embodiment, the hitting face and a portion of the skirt proximate the toe form a curved blade in the shape of a sickle or battle ax and an inner support bridges the toe end of the curved blade to the hosel for structural support. The ratio of moment of inertia of the club head about the y-axis to moment of inertia of the club head about the hosel axis is preferably 0.55. More preferably, this ratio is 0.75. | 11-19-2009 |
| 20090318243 | GOLF CLUB HEAD HAVING A GROOVED AND TEXTURED FACE - The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing and surface roughening to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio. | 12-24-2009 |
| 20100069170 | INTERCHANGEABLE SHAFT SYSTEM - 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. | 03-18-2010 |
| 20100151962 | TWO PIECE CLUB CONSTRUCTION APPARATUS AND METHOD - A method and apparatus for forming a golf club head is disclosed. The golf club head includes a first and second part, each of which may include more than one portion of the golf club head. The two parts are operatively connected using a single, continuous, non-planar weld line. Preferably, the weld line passes through a transition between the face and either the crown of the club or the sole of the club. Each portion of the club may include different percentages of the face and/or body, providing the advantage of minimizing manufacturing costs and time while controlling club head performance attributes to a higher level of precision. | 06-17-2010 |
| 20100197426 | GOLF CLUB HAVING REMOVEABLE SOLE WEIGHT - A golf club head is presented comprising a sole including a weight member secured to the sole via a non-threaded attachment assembly. Further, the weight member has a large surface area relative to its thickness, resulting in a chip-like or wafer-like weight member. This design allows the mass of the weight member to be spread substantially along the surface of the sole as opposed to in the interior of the club head. The golf club head may comprise more than one weight member. | 08-05-2010 |
| 20100304883 | WEDGE TYPE GOLF CLUB HEAD - A wedge type golf club head is disclosed herein where the wedge type golf club head has enhanced performance characteristics such as improved backspin, ball speed, and launch angle. More specifically, the present invention relates to a wedge type golf club head having a lower center of gravity, where the center of gravity is located substantially behind the hitting surface and substantially along a neutral axis behind the point of impact. | 12-02-2010 |
| 20100331096 | GOLF CLUB WITH IMPROVED PERFORMANCE CHARACTERISTICS - A metal wood type golf club with improved performance characteristics is disclosed herein where the metal wood type golf club head will combined the performance characteristics of both a driver type golf club head and a fairway type golf club head. More specifically, the present invention relates to a golf club head with a volume of between about 150 cc to about 360 cc, a CG location between about 10 mm to about 20 mm above the ground, a face depth of between about 30 millimeters (mm) to about 65 millimeters (mm), a loft of about between 10 degrees to about 16 degrees, and a COR of about 0.790 to about 0.830, wherein the entire golf club has a length of between about 41 inches to about 45 inches. | 12-30-2010 |
| 20100331102 | GOLF CLUB HEAD WITH NON-THREADED INTERNAL CAVITY CHAMBER - A metal wood or utility type golf club head is disclosed in which the golf club head may have dynamic mass properties that are capable of being adjusted without utilizing a threaded mechanism. More specifically, the present invention discloses a golf club head that has an internal receptacle or cavity well that is strategically placed inside the metal wood or utility type golf club head to enable dynamic mass adjustments utilizing weight cards. Even more specifically, the weight cards may generally be flat and rectangular in shape to minimize weight at undesirable areas and may even contain a weighted portion having an increased density for further center of gravity adjustment. | 12-30-2010 |
| 20110111885 | GOLF CLUB HEAD WITH REPLACEABLE FACE - A golf club head having a replaceable striking face is disclosed herein. More specifically, the present invention discloses a golf club head where at least a portion of the frontal striking surface of the face is detachable and replaceable to improve performance. A golf club head in accordance with the present invention may generally have a thinned striking face with a thickness of less than about 3.0 mm yielding a golf club head with a larger sweet spot that's greater than 6% of the frontal striking surface; defined as an area of the frontal striking surface having at least 99% of the maximum characteristic time between about 239 microseconds to about 257 microseconds. | 05-12-2011 |
| 20110143854 | INTERCHANGEABLE SHAFT SYSTEM - 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. | 06-16-2011 |
| 20110151989 | GOLF CLUB HEADS - A plurality of golf club heads wherein the difference in spin is minimized is disclosed herein. More specifically, the present invention discloses a plurality of fairway wood type golf club head with a volume of between about 110 cubic centimeters (cc) and about 250 cc, wherein the change in backspin between any two clubs within the plurality of metal wood type golf club heads is less than about 600 revolutions per minute (rpm). A plurality of golf clubs in accordance with the present invention may generally have all of its clubs maintain a center of gravity (CG) location that is less than about 8.0 mm away from a neutral axis of the golf club head regardless of the difference in loft of the specific golf club head within the plurality of golf club heads. | 06-23-2011 |
| 20110151992 | GOLF CLUB HEAD WITH IMPROVED PERFORMANCE - A golf club head with an improved sweet spot, defined as a portion of the striking face that has at least 99.7% of the maximum ballspeed is disclosed herein. More specifically, the present invention discloses a golf club head with a significantly circular sweet spot that encompasses at least about 1.5% of the total striking face. A golf club head in accordance with the present invention may generally have a improved face geometry with an elliptical factor of greater than about 0.5, a beveled transition portion around the striking face of the golf club head, a variable face thickness region with decreases thickness, or even a tilted bulge and roll radius all helping improve the performance of the golf club head. | 06-23-2011 |
| 20110151993 | GOLF CLUB HEAD WITH IMPROVED PERFORMANCE - A golf club head with an improved sweet spot, defined as a portion of the striking face that has at least 99.7% of the maximum ballspeed is disclosed herein. More specifically, the present invention discloses a golf club head with a significantly circular sweet spot that encompasses at least about 1.5% of the total striking face. A golf club head in accordance with the present invention may generally have a improved face geometry with an elliptical factor of greater than about 0.5, a beveled transition portion around the striking face of the golf club head, a variable face thickness region with decreases thickness, or even a tilted bulge and roll radius all helping improve the performance of the golf club head. | 06-23-2011 |
| 20110151994 | GOLF CLUB HEAD WITH IMPROVED PERFORMANCE - A golf club head with an improved sweet spot, defined as a portion of the striking face that has at least 99.7% of the maximum ballspeed is disclosed herein. More specifically, the present invention discloses a golf club head with a significantly circular sweet spot that encompasses at least about 1.5% of the total striking face. A golf club head in accordance with the present invention may generally have a improved face geometry with an elliptical factor of greater than about 0.5, a beveled transition portion around the striking face of the golf club head, a variable face thickness region with decreases thickness, or even a tilted bulge and roll radius all helping improve the performance of the golf club head. | 06-23-2011 |
| 20110152005 | GOLF CLUB HEAD WITH IMPROVED PERFORMANCE - A golf club head with an improved sweet spot, defined as a portion of the striking face that has at least 99.7% of the maximum ballspeed is disclosed herein. More specifically, the present invention discloses a golf club head with a significantly circular sweet spot that encompasses at least about 1.5% of the total striking face. A golf club head in accordance with the present invention may generally have a improved face geometry with an elliptical factor of greater than about 0.5, a beveled transition portion around the striking face of the golf club head, a variable face thickness region with decreases thickness, or even a tilted bulge and roll radius all helping improve the performance of the golf club head. | 06-23-2011 |
| 20110152006 | GOLF CLUB HEAD WITH IMPROVED PERFORMANCE - A golf club head with an improved sweet spot, defined as a portion of the striking face that has at least 99.7% of the maximum ballspeed is disclosed herein. More specifically, the present invention discloses a golf club head with a significantly circular sweet spot that encompasses at least about 1.5% of the total striking face. A golf club head in accordance with the present invention may generally have a improved face geometry with an elliptical factor of greater than about 0.5, a beveled transition portion around the striking face of the golf club head, a variable face thickness region with decreases thickness, or even a tilted bulge and roll radius all helping improve the performance of the golf club head. | 06-23-2011 |
