Class / Patent application number | Description | Number of patent applications / Date published |
473296000 | Longitudinally adjustable handle or shaft | 35 |
20090258720 | ADJUSTABLE LENGTH AND TORQUE RESISTANT GOLF SHAFT - An adjustable golf shaft having an upper shaft member, a lower shaft member and an inner rod. The upper shaft member includes an elongated bore therein with an upper bushing fixed within an upper end of the elongated bore therein. The lower shaft member has an elongated bore therein with a middle bushing fixed within an upper end of the elongated bore therein. The inner rod includes a lower end dimensioned to be fixed to a lower bushing, and an upper end dimensioned to be fixed to the upper bushing. The inner rod is adapted to slide within the middle bushing as the length of the shaft changes. | 10-15-2009 |
20090270197 | Putter shaft extension - This invention is a putter shaft extension assembly which is especially suitable for use in converting a putter with a conventional shaft length into a longer shaft “belly putter”. It uses a novel screw attachment and pin arrangement to prevent accidental loosening and improper assembly. It is also preferably supplied with spacers to provide different extension lengths, these spacers also contain pins to prevent accidental loosening of the extension. | 10-29-2009 |
20100056291 | ADJUSTABLE LENGTH AND TORQUE RESISTANT GOLF SHAFT - An adjustable golf shaft having an upper shaft member, a lower shaft member and an inner rod. The upper shaft member includes an elongated bore therein with an upper bushing fixed within an upper end of the elongated bore therein. The lower shaft member has an elongated bore therein with a middle bushing fixed within an upper end of the elongated bore therein. The inner rod includes a lower end dimensioned to be fixed to a lower bushing, and an upper end dimensioned to be fixed to the upper bushing. The inner rod is adapted to slide within the middle bushing as the length of the shaft changes. The shaft also includes a fastener or locking mechanism, which secures the lower shaft member within the upper shaft member. | 03-04-2010 |
20100081515 | Weights for grip length extensions to test golf clubs - A weight joined to a grip length extension, further joined to a test golf club to produce a device outwardly indistinguishable from a production golf club. The assembled device is used as part of a golf club fitting system to emulate the swingweight of various production golf clubs. | 04-01-2010 |
20100216568 | ADJUSTABLE LENGTH AND TORQUE RESISTANT GOLF SHAFT - An adjustable golf shaft having an upper shaft member, a lower shaft member and a torque resistant mechanism. The adjustable golf shaft includes an upper shaft member having an elongated bore therein, an outer torque resistant member having a substantially cylindrical shape and secured to an inner surface of the upper shaft member, a lower shaft member having a flared upper end configured to fit within the inner surface of the upper shaft member, and an inner torque resistant member having a substantially ring shape and secured to an outer surface of the lower shaft member. The inner torque resistant member is slidably engaged into the outer torque resistant member and configured to prevent the inner torque resistant member from rotating relative to the outer torque member, to thereby form a torque resistant shaft. | 08-26-2010 |
20100304881 | ADJUSTABLE LENGTH AND TORQUE RESISTANT GOLF SHAFT - An adjustable golf shaft having an upper shaft member, a lower shaft member and an inner rod. The upper shaft member includes an elongated bore therein with an upper bushing fixed within an upper end of the elongated bore therein. The lower shaft member has an elongated bore therein with a middle bushing fixed within an upper end of the elongated bore therein. The inner rod includes a lower end dimensioned to be fixed to a lower bushing that can slide relative to the lower shaft member. The inner rod is adapted to slide within the middle bushing as the length of the shaft changes. The shaft also includes a fastener or locking mechanism, which secures the lower shaft member within the upper shaft member. | 12-02-2010 |
20110081984 | GOLF CLUB SHAFT - An adjustable length golf club shaft having a grip portion with an end point is disclosed. A locking element is located within the grip portion and a lower shaft having an inner surface that is in frictional contact with the locking element is also disclosed. The locking element is configured to engage the inner surface of the lower shaft. A total length of the golf club shaft is adjustable by a distance of at least one inch and a total weight of the golf club shaft in a weight zone is less than 110 g. The weight zone is defined as a region of the golf club shaft extending from the end point of the grip portion up to 11″ along a central axis of the golf club shaft toward a tip portion of the shaft. | 04-07-2011 |
20110230277 | SEMI-AUTOMATICALLY ADJUSTABLE LENGTH AND TORQUE RESISTANT GOLF SHAFT - An adjustable golf shaft having an upper shaft member and a lower shaft member. The upper shaft member has an elongated bore therein and the lower shaft member has a cylinder and a rod having one end fixed to a proximal end of the cylinder. A fixed bushing is positioned within the elongated bore of the upper shaft member and has an elongated bore extending therethrough. The rod is slidably mounted through the elongated bore of the bushing. The frictional force between the rod and the bushing prevents the rod from sliding relative to the bushing when the user of the golf swings the golf shaft. | 09-22-2011 |
20110256949 | BUTT-MOUNTED SHAFT EXTENSION FOR A GOLF CLUB - A device designed for extending a golf club shaft. The device is a three-piece mechanism with a bottom piece bonded into the top end of a tubular golf club shaft, and a plurality of top piece sizes that are removably connected to the bottom piece and provide the adjustments in club length. A special golf grip having an accordion like plurality of rings can expand or contract in accordance with the amount of club length adjustment. | 10-20-2011 |
20110306438 | Connection Device - According to one aspect of the present invention there is provided an adjustable mechanism for connecting two or more shafts, including at least a first shaft having an external surface with an outer diameter and a second shaft which is hollow at a first end, wherein a spring is anchored to the first end of the second shaft, the spring having an inner diameter of similar dimensions to the outer diameter of the first shaft, the spring configured such that when a force is applied to the spring its inner diameter is greater than the outer diameter of the first shaft so that the second shaft can move over the first shaft to a desired position relative to the first shaft, and when the force is no longer applied to the spring it is biased to return to its original inner diameter to bear against the external surface of the first shaft. | 12-15-2011 |
20120142444 | SEMI-AUTOMATICALLY ADJUSTABLE LENGTH AND TORQUE RESISTANT GOLF SHAFT - An adjustable golf shaft having an upper shaft member and a lower shaft member. The upper shaft member has an elongated bore therein and the lower shaft member has a cylinder and a rod having one end fixed to a proximal end of the cylinder. A fixed bushing is positioned within the elongated bore of the upper shaft member and has an elongated bore extending therethrough. The rod is slidably mounted through the elongated bore of the bushing. The frictional force between the rod and the bushing prevents the rod from sliding relative to the bushing when the user of the golf swings the golf shaft. The shaft also includes a threaded screw, where the bushing includes a female thread to accommodate the threaded screw. | 06-07-2012 |
20120149485 | VARIABLE LENGTH GOLF CLUB SHAFT - A variable length shaft assembly comprising at least one upper shaft portion, a lower shaft portion and a threaded fastener, wherein the threaded fastener removably connects the upper shaft portion to the lower shaft portion, is disclosed herein. The variable length shaft assembly may further comprise at least two upper shaft portions having different lengths so a golfer can adjust the total length of the shaft by removing one upper shaft portion and replacing it with another upper shaft portion having a different length. Methods of adjusting the length of a golf club shaft without damaging any portion of the shaft and variable length shaft kits are also disclosed herein. | 06-14-2012 |
20120149486 | VARIABLE LENGTH SHAFT - A variable length golf club shaft is disclosed herein. The variable length shaft includes a hollow lower shaft with a plurality of holes, a hollow upper shaft with at least one protrusion extending from an inner surface that is sized to fit within the plurality of holes, and an unlocking bar. The shaft length can be adjusted by sliding the upper shaft over the lower shaft and using the unlocking bar to release the protrusion from the holes to allow overall shaft length adjustments. In another embodiment, the variable length shaft includes a hollow lower shaft, a hollow upper shaft, an engaging insert, and a locking bar. | 06-14-2012 |
20120258817 | GOLF CLUB SHAFT - An adjustable length golf club shaft having a grip portion with an end point is disclosed. A locking element is located within the grip portion and a lower shaft having an inner surface that is in frictional contact with the locking element is also disclosed. The locking element is configured to engage the inner surface of the lower shaft. A total length of the golf club shaft is adjustable by a distance of at least one inch and a total weight of the golf club shaft in a weight zone is less than 110 g. The weight zone is defined as a region of the golf club shaft extending from the end point of the grip portion up to 11″ along a central axis of the golf club shaft toward a tip portion of the shaft. | 10-11-2012 |
20130109488 | VARIABLE LENGTH GOLF CLUB SHAFT | 05-02-2013 |
20130109489 | ADJUSTABLE LENGTH GOLF CLUBS AND METHODS OF MANUFACTURING ADJUSTABLE LENGTH GOLF CLUBS | 05-02-2013 |
20130109490 | ADJUSTABLE LENGTH GOLF CLUBS AND METHODS OF MANUFACTURING ADJUSTABLE LENGTH GOLF CLUBS | 05-02-2013 |
20130109491 | ADJUSTABLE LENGTH GOLF CLUBS AND METHODS OF MANUFACTURING ADJUSTABLE LENGTH GOLF CLUBS | 05-02-2013 |
20130109492 | BUTT-MOUNTED SHAFT EXTENSION FOR A GOLF CLUB | 05-02-2013 |
20130165248 | 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. | 06-27-2013 |
20130184097 | GOLF CLUB SHAFT ADAPTOR - The present invention is directed to a shaft lengthening system for a golf club. The shaft lengthening system comprises three components: an upper shaft portion that is attached to a grip, a lower shaft portion or portions that are attached to a club head, and a collet clamp assembly that couples the upper and lower shaft components together. The shaft components slideably engage with each other. The collet clamp assembly may comprise a collet secured to one of the shaft components and a collet clamp that interacts with the collet. Preferably, the collet clamp is threaded over the collet to clamp a portion of the collet to the other of the shaft components thereby setting the position of the shaft components relative to each other, and thus setting the overall length of the golf club shaft. | 07-18-2013 |
20130237339 | VARIABLE LENGTH GOLF CLUB SHAFT - A variable length shaft assembly comprising at least one upper shaft portion, a lower shaft portion and a threaded fastener, wherein the threaded fastener removably connects the upper shaft portion to the lower shaft portion, is disclosed herein. The variable length shaft assembly may further comprise at least two upper shaft portions having different lengths so a golfer can adjust the total length of the shaft by removing one upper shaft portion and replacing it with another upper shaft portion having a different length. Methods of adjusting the length of a golf club shaft without damaging any portion of the shaft and variable length shaft kits are also disclosed herein. | 09-12-2013 |
20130267343 | ADJUSTABLE LENGTH GOLF CLUBS AND METHODS OF MANUFACTURING ADJUSTABLE LENGTH GOLF CLUBS - Embodiments of adjustable length golf clubs and methods of manufacturing adjustable length golf clubs are generally described herein. Other embodiments may be described and claimed. | 10-10-2013 |
20130296067 | GOLF CLUB SHAFT - An adjustable length golf club shaft having a grip portion with an end point is disclosed. A locking element is located within the grip portion and a lower shaft having an inner surface that is in frictional contact with the locking element is also disclosed. The locking element is configured to engage the inner surface of the lower shaft. A total length of the golf club shaft is adjustable by a distance of at least one inch and a total weight of the golf club shaft in a weight zone is less than 110 g. The weight zone is defined as a region of the golf club shaft extending from the end point of the grip portion up to 11″ along a central axis of the golf club shaft toward a tip portion of the shaft. | 11-07-2013 |
20130337933 | LIGHTWEIGHT GRIP FOR SPORTS EQUIPMENT - A lightweight grip assembly is disclosed herein. The lightweight grip assembly comprises a rigid support structure comprising a hollow portion and a grip portion comprising a substantially uniform thickness, wherein the grip portion is disposed on an external surface of the rigid support structure. The lightweight grip assembly may be used in connection with golf club shafts and heads having one or more adjustable features to increase the amount of overall discretionary weight available to a golfer. | 12-19-2013 |
20140073448 | BUTT-MOUNTED SHAFT EXTENSION DEVICE - A device designed for modifying the length of a golf club shaft. The device is a three-piece mechanism with a bottom part bonded into the top end of a tubular golf club shaft, a top part provided within the grip, a threaded screw provided within the top part and threadably connected to the bottom part such that movement of the screw will adjust the distance between the top part and bottom part thereby adjusting the club length. The extension device is hidden within the shaft and grip and does not require a custom grip or shaft. | 03-13-2014 |
20140171214 | VARIABLE LENGTH SHAFT - A variable length golf club shaft is disclosed herein. The variable length shaft includes a hollow lower shaft with a plurality of holes, a hollow upper shaft with at least one protrusion extending from an inner surface that is sized to fit within the plurality of holes, and an unlocking bar. The shaft length can be adjusted by sliding the upper shaft over the lower shaft and using the unlocking bar to release the protrusion from the holes to allow overall shaft length adjustments. in another embodiment, the variable length shaft includes a hollow lower shaft, a hollow upper shaft, an engaging insert, and a locking bar. | 06-19-2014 |
20140179459 | PUTTER HEAD, ADJUSTABLE SHAFT AND PUTTER - A golf club head comprises a front portion, a rear portion, a toe portion and a heel portion that together form a two-piece body and for which a center of gravity is defined. The body comprises a central portion as a first piece and a frame as a second piece. The frame encloses a substantial portion of the central portion within an XY-plane. The central portion is connected with the frame with fasteners along at least the front portion. The moment inertia of the club head about a z-axis of the center of gravity is between about 7,000 kg·mm | 06-26-2014 |
20140335970 | VARIABLE LENGTH GOLF CLUB SHAFT - A variable length shaft assembly comprising at least one spacer, a shaft portion, and a threaded fastener, wherein the threaded fastener removably connects the spacer to the lower shaft, is disclosed herein. The variable length shaft assembly may further comprise at least two spacers that are stackable on a butt end of the shaft portion so a golfer can adjust the total length of the shaft. Methods of adjusting the length of a golf club shaft without damaging any portion of the shaft and variable length shaft kits are also disclosed herein. | 11-13-2014 |
20140335971 | LIGHTWEIGHT GRIP FOR SPORTS EQUIPMENT - A lightweight grip assembly is disclosed herein. The lightweight grip assembly comprises a rigid support structure comprising a hollow portion and a grip portion comprising a substantially uniform thickness, wherein the grip portion is disposed on an external surface of the rigid support structure. The lightweight grip assembly may be used in connection with golf club shafts and heads having one or more adjustable features to increase the amount of overall discretionary weight available to a golfer. | 11-13-2014 |
20150051011 | GOLF CLUB SHAFT - An adjustable length golf club shaft having a grip portion with an end point is disclosed. A locking element is located within the grip portion and a lower shaft having an inner surface that is in frictional contact with the locking element is also disclosed. The locking element is configured to engage the inner surface of the lower shaft. A total length of the golf club shaft is adjustable by a distance of at least one inch and a total weight of the golf club shaft in a weight zone is less than 110 g. The weight zone is defined as a region of the golf club shaft extending from the end point of the grip portion up to 11″ along a central axis of the golf club shaft toward a tip portion of the shaft. | 02-19-2015 |
20150126298 | CLUB LENGTH ADJUSTMENT DEVICE - A golf club length adjustment device for use in a golf club, comprising a first member affixed to a main shaft, said main shaft configured to couple to a golf club head, a second member slideably coupled to said first member, said second member adapted to couple to a golf club grip, said golf club grip including an internal cavity configured to receive a golf club shaft, wherein said first member is configured to slide relative to said second member to change the length of said golf club, wherein said first member and said second member are configured to limit rotation of said first member relative to said second member, a locking system configured to selectively limit said first member from sliding relative to said second member, wherein said locking system comprises a locked position and an unlocked position. | 05-07-2015 |
20150306481 | BUTT-MOUNTED SHAFT EXTENSION DEVICE - A device designed for modifying the length of a golf club shaft. The device is a three-piece mechanism with a bottom part bonded into the top end of a tubular golf club shaft, a top part provided within the grip, a threaded screw provided within the top part and threadably connected to the bottom part such that movement of the screw will adjust the distance between the top part and bottom part thereby adjusting the club length. The extension device is hidden within the shaft and grip and does not require a custom grip or shaft. | 10-29-2015 |
20160023058 | GOLF CLUB SHAFT ADAPTOR - The present invention is directed to a shaft lengthening system for a golf club. The shaft lengthening system comprises three components: an upper shaft portion that is attached to a grip, a lower shaft portion or portions that are attached to a club head, and a collet clamp assembly that couples the upper and lower shaft components together. The shaft components slideably engage with each other. The collet clamp assembly may comprise a collet secured to one of the shaft components and a collet clamp that interacts with the collet. Preferably, the collet clamp is threaded over the collet to clamp a portion of the collet to the other of the shaft components thereby setting the position of the shaft components relative to each other, and thus setting the overall length of the golf club shaft. | 01-28-2016 |
20160096090 | CLUB LENGTH ADJUSTMENT DEVICE - A golf club length adjustment device for use in a golf club, including a first member affixed to a main shaft, a second member slideably coupled to the first member, the second member adapted to couple to a golf club grip, wherein the first member is configured to slide relative to the second member to change the length of the golf club; a locking system having a locked position and an unlocked position; wherein the locking system includes at least one locking member and a plurality of detents, wherein the locking member is configured to selectively engage at least one of the plurality of detents; wherein the first member is formed of a first material having a first density; wherein the locking member is formed of a second material having a second density; wherein the second density is greater than the first density. | 04-07-2016 |