Class / Patent application number | Description | Number of patent applications / Date published |
473318000 |
Including nonmetallic material or vibratory wave modifying feature
| 76 |
473323000 |
Shaft tapered in steps | 5 |
20080287213 | Golf club shaft - A golf club shaft having an exterior with a non-circular cross-section along at least a portion of its length is disclosed. In one embodiment, the cross-section of the exterior of the shaft along an intermediate portion of the shaft between the butt end and the tip end is non-circular. In this embodiment, the cross-section of the exterior of the shaft at the end regions containing the butt and tip ends of the shaft may be circular. The cross-section of the intermediate portion may be any suitable shape, such as a symmetrical shape. In one version of such an embodiment, the cross-section of the exterior of the shaft along an intermediate portion of the shaft is substantially triangular in configuration. | 11-20-2008 |
20120264536 | GOLF CLUB SHAFT - A golf club shaft is manufactured using a plurality of prepreg sheets a | 10-18-2012 |
20120309558 | GOLF CLUB SHAFT | 12-06-2012 |
20130324289 | GOLF CLUB STEEL SHAFT - A golf club steel shaft in which, when a distance from a front end of the shaft to a center of gravity point of the shaft is L | 12-05-2013 |
20150290505 | GOLF SHAFT AND METHOD OF MANUFACTURING SAME - A tubular steel golf shaft comprising a grip section, a tapered mid-section and a tip section. A loading zone is selectively formed along a portion of the shaft, preferably in the tapered mid-section, comprising a continuous series of closely spaced micro-steps, or reductions in diameter, each of which are less than 0.5 inches in length. Each micro-step section, in the direction from the grip section toward the tip section comprises a first peak which descends to valley and then ascends to a second peak. The diameter of the first peak is greater than the diameter of the second peak. A method of manufacturing the golf shaft is also disclosed. | 10-15-2015 |
473317000 |
Reduced air resistance | 3 |
20110009208 | Fairing for a Golf Club Shaft - A golf club or implement comprising a grip region ( | 01-13-2011 |
20110118050 | GOLF SHAFT WITH ROUGHENED SURFACE - A golf club includes a tapered shaft, a club head attached to a first end of the shaft, and a grip attached to a second end of the shaft. The exterior surface of the shaft has a surface roughness of less than 143 micro inches. The exterior surface also includes a plurality of particles having a size in the range of about 20 microns to about 100 microns. | 05-19-2011 |
20110143855 | GOLF CLUB SLEEVE AND GOLF CLUBS FOR USE THEREWITH - A golf club sleeve for use with various golf club structures is presented. The golf club sleeve may have an airfoil shaped cross section and may extend over at least a portion of the shaft of the golf club to reduce drag associated with the shaft during a golf swing, thereby increasing swing speed. The golf club sleeve may be rotatable relative to the shaft of the golf club to orient itself during a swing in order to improve air flow over the sleeve. | 06-16-2011 |
Entries |
Document | Title | Date |
20090023514 | Direct flex - A one way action golf club flex modification system mounted within a golf club. The non-linear shape of the flex modification member engages the interior wall of the hollow shaft at two regions on opposite sides of the shaft interior and is affixed to a third point in the handle. The “free” end of the flex modification system is closest to the head and generally oriented toward the striking face of the head. The one way action reduces the flexibility of the shaft during the swing toward the golf ball but allows the shaft to flex forward with the travel of the ball. The plane described by the waive shape of the flex member may be fixedly rotated relative to the shaft to allow fine tuning to accommodate the individual swing of the golfer. | 01-22-2009 |
20090036227 | ADJUSTABLE MECHANISM FOR ATTACHING TWO SHAFTS - An adjustable mechanism including at least two shafts, one of which is hollow, including: a spring attached to a first shaft; the spring having an outer diameter of similar dimensions to the internal diameter of the second shaft, the spring configured such that once force is applied to the spring, its outer diameter is less than the inner diameter of the second shaft; and when force is no longer applied to the spring it is biased to return to its original outer diameter to bear against the inner diameter of the second shaft. | 02-05-2009 |
20090069111 | Golf club - A golf club ( | 03-12-2009 |
20090298608 | Golf club shaft, production method therefor, and golf club therewith - A golf club shaft includes a base made of a metal material, a nickel plated layer formed on the base, a chrome plated layer formed on the nickel layer, and a coating layer formed on the chrome plated layer. The chrome plated layer has a surface roughness Ra of 0.1 to 0.3 μm and a thickness of 0.2 to 1 μm. | 12-03-2009 |
20090312115 | GOLF CLUB SHAFT WITH ADJUSTABLE STIFFNESS - A golf club shaft having adjustable stiffness. An elongated tensioning member extends through the shaft and is mounted to both ends of the shaft. A tensioner assembly is mounted to the shaft and is connected to the tensioning member for allowing manual adjustment of the axial tension in the tensioning member, thereby allowing a technician or a user to increase or decrease the stiffness of the shaft as desired. | 12-17-2009 |
20110028232 | GOLF CLUB - A golf club includes a shaft in which a brightness of a color of the shaft from a grip side toward a head side is changed from darkness to brightness in a plurality of stages. | 02-03-2011 |
20110111882 | SHAFT FITTING SYSTEM - A method of selecting a preferred golf shaft for a player who uses an existing golf shaft, according to one or more aspects of the present invention, may comprise gathering a plurality of empirical data sets, each data set corresponding to an individual golf shaft selected from a plurality of golf shafts; providing a plurality of specification codes, each associated with an individual empirical data set of the plurality of empirical data sets; from the plurality of specification codes, identifying a first specification code associated with the existing golf shaft; gathering feedback associated with the existing golf shaft from the player; and using the feedback to select, from the plurality of specification codes, a second specification code corresponding to the preferred golf shaft. | 05-12-2011 |
20110118049 | LASER ETCHING OF SURFACE FEATURES AND CYLINDRICAL ARTICLES PRODUCED THEREBY - A golf club shaft, includes a flexible, elongate, tapered, fiber-reinforced generally cylindrical body formed from a fiber/resin matrix having carbon fibers embedded therein, an interior coating layer applied substantially continuously over the surface of the cylindrical body along the length and circumference of the cylindrical body, a plurality of secondary coating layers formed over the interior coating layer including an exterior coating layer, each secondary coating layer having a different color and surrounding at least one etched area wherein one or more secondary coating layers has been removed to expose one or more coating layers between the exterior coating layer and the interior coating layer, each coating layer having a different color; and wherein the difference in the thickness of the secondary coatings in the etched area is discernable from the remainder of the surface of the cylindrical body via tactile sensation when the golf shaft is gripped by a user. | 05-19-2011 |
20110237346 | SWINGWEIGHT ADJUSTED GOLF CLUB SHAFT - An improved golf club shaft and corresponding golf club is disclosed. More specifically, a golf club shaft that is capable of minimizing or eliminating swingweight variations within a golf club despite being cut down to various different lengths to accommodate the length and heads of a set of irons is disclosed. The shaft may have an internal wall profile of variable thickness to adjust for various weight and center of gravity variations of a golf club shaft as it is being cut down in length. | 09-29-2011 |
20120028730 | Trueshaft - Disclosed is a golf shaft comprising a plurality of sides imparting a desired flexibility and rigidity to a golf club, such that the golf club possesses desired flexibility and necessary rigidity to enable the club to carry through and provide optimal flight to a golf ball. | 02-02-2012 |
20120046123 | Golf Club - A golf club having a head is disclosed. The head comprises a base layer and a compounded transfer layer. The base layer has a coupling face. The compounded transfer layer is formed on the coupling face of the base layer. The compounded transfer layer has a dye layer and a protection layer. The dye layer is sandwiched between the base layer and the protection layer. | 02-23-2012 |
20120071266 | GOLF CLUB SHAFT WITH HIGH BALANCE POINT AND GOLF CLUB INCLUDING SAME - A golf club shaft having a weight distribution such that the balance point percentage is less than or equal to 44.50%. The weight distribution of the shaft allows for an increase in length and/or club head weight of a golf club while having a reduced impact on the swing weight. | 03-22-2012 |
20120083357 | GOLF CLUB SHAFT AND GOLF CLUB THEREWITH - A golf club shaft has a length of a shaft of 1050 mm to 1170 mm and a sum of flexural rigidities at positions 150 mm, 200 mm and 250 mm from a front end of the shaft of A | 04-05-2012 |
20120094780 | Device for Changing Mass Characteristics of a Golf Club - A device for changing the mass characteristics of a golf club may include a first movable mass. The device may also include a first movable mass guide configured to accommodate longitudinal travel of the first movable mass along the golf club shaft. The first movable mass guide may not extend beyond the distal end of the golf club shaft. The golf club head may include a second movable mass and a second movable mass guide that accommodates travel of the second movable mass. | 04-19-2012 |
20120149489 | VARIABLE LENGTH SHAFT - A variable length golf club shaft is disclosed herein. The variable length golf club shaft includes at least one upper shaft portion having a first diameter and a hollow lower shaft portion having a second diameter that is larger than the first diameter, wherein the lower shaft portion has at least one notch, and wherein the at least one upper shaft portion has at least one pin that fits within the at least one notch. | 06-14-2012 |
20120149490 | GOLF CLUB SHAFT - Golf is a massive industry as well as sport globally with golfers investing in continuous evolutions and modifications to golf clubs with sensitivity to weight of a few grams, offset in angle of a degree, “feel” etc. Prior art designs focused to the golf club head, grip, and in a few instances the shaft. However, considerations of accurate alignment between the elements during initial assembly/replacement are not addressed. It is, therefore, desirable to provide a means of assembling a golf club shaft that provides for an accurate alignment between the multiple elements such that alignment between them is established, can be maintained with replacements, and also allows for meaningful adjustments in the grip and head to be achieved as multiple other factors do not confound the desired interpretation of the impact of an adjustment. Accordingly the invention provides for such alignment between multiple elements of a golf club. | 06-14-2012 |
20120244957 | Game apparatuses - Game apparatus, e.g., a game racquet or a golf club, with selectively variable and maintainable weight distribution, e.g. by moving material (e.g., liquid and/or solid weight members) within or on the apparatus and selectively positioning the weight(s) and maintaining weight position in or on the apparatus; in one aspect, the game apparatus having dual opposed channels for weight members; and in one aspect a set of a plurality of weight members for connection to a game apparatus. | 09-27-2012 |
20120252596 | GOLF CLUB WITH BEZELED JEWELRY - A golf club with a rigid shaft band is disclosed herein. More specifically, the present invention discloses a golf club with a rigid shaft band that is placed at a precise location on the shaft itself, utilizing a precise taper within the internal surface of the rigid shaft band to control the location. Even more specifically, the rigid shaft band may be placed at a distance that is greater than about 1 inch and less than about 3 inches away from the butt end of the golf club with a tapered internal surface of greater than about 0.573 degrees and less than about 1.146 degrees. | 10-04-2012 |
20130090184 | GOLF CLUB SHAFT - A golf club shaft, wherein when a distance from a shaft front end to a shaft gravity center point is L | 04-11-2013 |
20130095948 | GOLF CLUB SHAFT - When a distance from a shaft front end to a shaft gravity center point is L | 04-18-2013 |
20130123039 | GOLF CLUB - A golf club includes a shaft and a head, the torque of the entire length of the shaft being in a range of 3 to 5°. From viewpoints of a torsional rigidity distribution of the shaft, an integrated value of the torsional rigidity on the grip end side of the shaft is 85% or less of the integrated value of the torsional rigidity of the entire length of the shaft. The head has a distance to the center of gravity of 40 to 48 mm and a gravity center angle of 22 to 30°. | 05-16-2013 |
20130143688 | GOLF CLUB SHAFT - A golf club shaft has the bending rigidity distribution and the torsional rigidity distribution satisfying the following three relational formulas: 1) S | 06-06-2013 |
20130172097 | GOLF CLUB SHAFT - A section where the tip side partial bias layer exists in an axis direction of the shaft is defined as a section T; a section where the back end side partial bias layer exists in the axis direction of the shaft is defined as a section B; and a shaft section inserted into a hosel of a head in the axis direction of the shaft is defined as a section H. A part of the section T overlaps with the section H. An overlapping section TB in which the section T overlaps with the section B exists. The whole overlapping section TB is located on a back end Bt side of the shaft from the section H. A center position Px of the overlapping section TB is located on a tip side of the shaft from a center position Pc of the shaft. | 07-04-2013 |
20130260910 | GOLF CLUB - A golf club includes a shaft and a head. The shaft has a torque of the entire length of the shaft of from 3 to 5°. In the torsional rigidity distribution of the shaft, an integrated value of the torsional rigidity on the grip end side of the shaft is at least 85% of the integrated value of the torsional rigidity of the entire length of the shaft. The head has a distance to the center of gravity of from 25 mm to 35 mm and has a gravity center angle of from 10° to 20°. | 10-03-2013 |
20130331200 | SHAFT FITTING SYSTEM - A method of selecting a preferred golf shaft for a player who uses an existing golf shaft, according to one or more aspects of the present invention, may comprise gathering a plurality of empirical data sets, each data set corresponding to an individual golf shaft selected from a plurality of golf shafts; providing a plurality of specification codes, each associated with an individual empirical data set of the plurality of empirical data sets; from the plurality of specification codes, identifying a first specification code associated with the existing golf shaft; gathering feedback associated with the existing golf shaft from the player; and using the feedback to select, from the plurality of specification codes, a second specification code corresponding to the preferred golf shaft. | 12-12-2013 |
20150290900 | FIBER-REINFORCED EPOXY RESIN MATERIAL, PREPREG AND, TUBULAR BODY MADE OF FIBER-REINFORCED EPOXY RESIN MATERIAL - An object of the present invention is to provide a novel fiber-reinforced epoxy resin material having improved strength. The fiber-reinforced epoxy resin material of the present invention comprises a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises a novolac type epoxy resin as an epoxy resin component, and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone. | 10-15-2015 |
20150360100 | ROD-LIKE OBJECT FOR BALL GAMES AND METHOD FOR USING THE SAME - A rod-like object for ball games | 12-17-2015 |
20160030817 | METAL SHAFT HAVING LONGITUDINALLY VARYING HARDNESS, GOLF SHAFT USING THE METAL SHAFT, GOLF CLUB USING THE METAL GOLF SHAFT, METHOD OF MANUFACTURING THE METAL SHAFT, AND TEMPERING APPARATUS - A metal shaft includes a hollow tube made of metal, capable of having hardness varying in a longitudinal direction of the metal shaft while preventing increase in the number of variations on a shape of the metal shaft. The tube has a hardness pattern exhibited by hardness of the tube varying in a longitudinal direction of the tube according to Young's modulus or tensile strength of the metal varying in the longitudinal direction. | 02-04-2016 |
20160184671 | GOLF CLUB SHAFT | 06-30-2016 |