Patents by Inventor D. Clayton Evans

D. Clayton Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • GOLF CLUB HEAD WITH ADJUSTABLE WEIGHTING
    Publication number: 20120064991
    Abstract: A titanium bodied driver that utilizes a lightweight receiving back cap, which is designed to be non-removable from the club head but can be loosened to allow its interior to be accessed to reposition one or more movable weights into alternative receiving locations, is disclosed herein. The back cap may also be designed to be completely removable from the driver body to gain access to the one or more weights that can be re-positioned in alternative receiving areas within the back cap's interior.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 15, 2012
    Applicant: CALLAWAY GOLF COMPANY
    Inventor: D. CLAYTON EVANS
  • INTERCHANGEABLE SHAFT FOR A GOLF CLUB
    Publication number: 20120064990
    Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: ALAN HOCKNELL, MATTHEW T. CACKETT, DENVER HOLT, D. CLAYTON EVANS, DANIEL M. STEVENS, JAMES C. WENCK, STEVEN S. OGG, KONRAD LENHOF, JERRY V. BLANKE, JOEL B. ERICKSON, BROADUS PERRY WALL
  • Wood-type golf club head with adjustable sole contour
    Patent number: 8123626
    Abstract: A wood-type golf club head with an adjustable keel zone member is disclosed herein. The golf club head includes a body and an adjustable keel zone member. The body has a front portion, a crown portion and a sole portion. The body also having a heel end, a toe end and an aft end. The sole portion has only a single keel point. The adjustable keel zone member is disposed within a keel zone of the sole and located preferentially with respect to the center of gravity. The keel zone member is capable of adjusting the face angle of the wood-type golf club head.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: February 28, 2012
    Assignee: Callaway Golf Company
    Inventors: Matthew T. Cackett, D. Clayton Evans, Alan Hocknell
  • Golf Club Head with Improved Aerodynamic Characteristics
    Publication number: 20120015757
    Abstract: Methods of forming a golf club head having improved aerodynamic characteristics are disclosed herein. A preferred method is the largest tangent circle method, which utilizes a Cartesian coordinate system. The method results in identification and measurement of certain club head features, which can be adjusted to improve aerodynamic properties of the golf club head. One method of the present invention lowers the drag of the club head by specifying dimensional relationships of the driver head based on location of apex and nadir points, while another method lowers the drag of the club head by improving overall face design.
    Type: Application
    Filed: June 22, 2011
    Publication date: January 19, 2012
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: D. CLAYTON EVANS, EVAN D. GIBBS, MATTHEW T. CACKETT, STEVEN M. EHLERS
  • Interchangeable shaft for a golf club
    Patent number: 8096895
    Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: January 17, 2012
    Assignee: Callaway Golf Company
    Inventors: Alan Hocknell, Matthew T. Cackett, Denver Holt, D. Clayton Evans, Daniel M. Stevens, James C. Wenck, Steven S. Ogg, Konrad Lenhof, Jerry V. Blanke, Joel B. Erickson, Broadus Perry Wall
  • GOLF CLUB WITH REMOVABLE COMPONENTS
    Publication number: 20110319186
    Abstract: A golf club having removable components includes a club head, a shaft, and a connection assembly. The club head includes a hosel having an upper treaded portion and a lower portion with a faceted cross-section. The connection assembly includes a sleeve mounted on the tip end of the shaft and a screw-cap. The sleeve, which has an aperture for receiving the tip end of the shaft, includes a lower section that has a multi-faceted surface for engaging the lower portion of the hosel. The screw-cap is mounted over the sleeve and includes a body having an upper area and a threaded area, the latter of which is capable of engaging the upper threaded portion of the hosel to removably secure the shaft to the club head.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 29, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: D. CLAYTON EVANS, MATTHEW T. CACKETT
  • WOOD-TYPE GOLF CLUB HEAD WITH ADJUSTABLE SOLE CONTOUR
    Publication number: 20110312436
    Abstract: A wood-type golf club head with an adjustable keel zone member is disclosed herein. The golf club head includes a body and an adjustable keel zone member. The body has a front portion, a crown portion and a sole portion. The body also having a heel end, a toe end and an aft end. The sole portion has only a single keel point. The adjustable keel zone member is disposed within a keel zone of the sole and located preferentially with respect to the center of gravity. The keel zone member is capable of adjusting the face angle of the wood-type golf club head.
    Type: Application
    Filed: August 25, 2011
    Publication date: December 22, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: MATTHEW T. CACKETT, D. CLAYTON EVANS, ALAN HOCKNELL
  • INTERCHANGEABLE SHAFT FOR A GOLF CLUB
    Publication number: 20110312434
    Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).
    Type: Application
    Filed: August 26, 2011
    Publication date: December 22, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: ALAN HOCKNELL, MATTHEW T. CACKETT, DENVER HOLT, D. CLAYTON EVANS, DANIEL M. STEVENS, JAMES C. WENCK, STEVEN S. OGG, KONRAD LENHOF, JERRY V. BLANKE, JOEL B. ERICKSON, BROADUS PERRY WALL
  • INTERCHANGEABLE SHAFT FOR A GOLF CLUB
    Publication number: 20110306437
    Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).
    Type: Application
    Filed: August 23, 2011
    Publication date: December 15, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: ALAN HOCKNELL, MATTHEW T. CACKETT, DENVER HOLT, D. CLAYTON EVANS, DANIEL M. STEVENS, JAMES C. WENCK, STEVEN S. OGG, KONRAD LENHOF, JERRY V. BLANKE, JOEL B. ERICKSON, BROADUS PERRY WALL
  • INTERCHANGEABLE SHAFT FOR A GOLF CLUB
    Publication number: 20110275449
    Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).
    Type: Application
    Filed: July 19, 2011
    Publication date: November 10, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: ALAN HOCKNELL, MATTHEW T. CACKETT, DENVER HOLT, D. CLAYTON EVANS, DANIEL M. STEVENS, JAMES C. WENCK, STEVEN S. OGG, KONRAD LENHOF, JERRY V. BLANKE, JOEL B. ERICKSON, BROADUS PERRY WALL
  • Method of Forming a Golf Club Head with Improved Aerodynamic Characteristics
    Publication number: 20110247190
    Abstract: Methods of forming a golf club head having improved aerodynamic characteristics are disclosed herein. A preferred method is the largest tangent circle method, which utilizes a Cartesian coordinate system. The method results in identification of the highest point of the crown surface located within a crown apex zone, and this location aids in the design of improved aerodynamic properties of the golf club head.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 13, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: D. CLAYTON EVANS, EVAN D. GIBBS, MATTHEW T. CACKETT, STEVEN M. EHLERS
  • Golf club with removable components
    Patent number: 8012037
    Abstract: A golf club having removable components includes a club head, a shaft, and a connection assembly. The club head includes a hosel having an upper treaded portion and a lower portion with a faceted cross-section. The connection assembly includes a sleeve mounted on the tip end of the shaft and a screw-cap. The sleeve, which has an aperture for receiving the tip end of the shaft, includes a lower section that has a multi-faceted surface for engaging the lower portion of the hosel. The screw-cap is mounted over the sleeve and includes a body having an upper area and a threaded area, the latter of which is capable of engaging the upper threaded portion of the hosel to removably secure the shaft to the club head.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: September 6, 2011
    Assignee: Callaway Golf Company
    Inventors: D. Clayton Evans, Matthew T. Cackett
  • Wood-type golf club head with adjustable sole contour
    Patent number: 8012034
    Abstract: A wood-type golf club head with an adjustable keel zone member is disclosed herein. The golf club head includes a body and an adjustable keel zone member. The body has a front portion, a crown portion and a sole portion. The body also having a heel end, a toe end and an aft end. The sole portion has only a single keel point. The adjustable keel zone member is disposed within a keel zone of the sole and located preferentially with respect to the center of gravity. The keel zone member is capable of adjusting the face angle of the wood-type golf club head.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: September 6, 2011
    Assignee: Callaway Golf Company
    Inventors: Matthew T. Cackett, D. Clayton Evans, Alan Hocknell
  • Intgerchangeable shaft for a golf club
    Patent number: 8002644
    Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: August 23, 2011
    Assignee: Callaway Golf Company
    Inventors: Alan Hocknell, Matthew T. Cackett, Denver Holt, D. Clayton Evans, Daniel M. Stevens, James C. Wenck, Steven S. Ogg, Konrad Lenhof, Jerry V. Blanke, Joel B. Erickson, Broadus Perry Wall
  • WOOD-TYPE GOLF CLUB HEAD WITH ADJUSTABLE SOLE CONTOUR
    Publication number: 20110201440
    Abstract: A wood-type golf club head with an adjustable keel zone member is disclosed herein. The golf club head includes a body and an adjustable keel zone member. The body has a front portion, a crown portion and a sole portion. The body also having a heel end, a toe end and an aft end. The sole portion has only a single keel point. The adjustable keel zone member is disposed within a keel zone of the sole and located preferentially with respect to the center of gravity. The keel zone member is capable of adjusting the face angle of the wood-type golf club head.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: MATTHEW T. CACKETT, D. CLAYTON EVANS, ALAN HOCKNELL
  • METHOD OF FORMING A GOLF CLUB HEAD WITH IMPROVED AERODYNAMIC CHARACTERISTICS
    Publication number: 20110192002
    Abstract: A method for forming a driver type golf club head, the method comprising orienting a golf club head using a largest tangent circle method, forming a golf club head having an apex point positioned in a crown apex zone and designing a crown curve having some portion exist above a 5.25 inch radius arc, the radius arc beginning at the apex point and extending rearward toward the back end of the golf club head.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 11, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: D. CLAYTON EVANS, EVAN D. GIBBS, MATTHEW T. CACKETT, STEVEN M. EHLERS
  • METHOD OF FORMING A GOLF CLUB HEAD WITH IMPROVED AERODYNAMIC CHARCTERISTICS
    Publication number: 20110192001
    Abstract: A method of forming a golf club head having improved aerodynamic characteristics. The method comprises a largest tangent circle method utilizing a cartesian coordinate system. The method results in the highest point of the crown surface located within a crown apex zone, wherein this location aids in the improved aerodynamic properties of the golf club head.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 11, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: D. CLAYTON EVANS, EVAN D. GIBBS, MATTHEW T. CACKETT, STEVEN M. EHLERS
  • GOLF CLUB HEAD WITH IMPROVED AERODYNAMIC CHARACTERISTICS
    Publication number: 20110195800
    Abstract: A driver type golf club head comprising a body having a face, a crown and a sole, wherein the highest point of the crown surface is located within a crown apex zone, and the club head has a depth, the depth being at least twice the length as a height of the club head, wherein the depth is at least 4.600 inches.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 11, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: D. CLAYTON EVANS, EVAN D. GIBBS, MATTHEW T. CACKETT, STEVEN M. EHLERS
  • METHOD OF FORMING A GOLF CLUB HEAD WITH IMPROVED AERODYNAMIC CHARACTERISTICS
    Publication number: 20110195801
    Abstract: A driver type golf club head comprising a body having a face, a crown and a sole, wherein the highest point of the crown surface is located within a crown apex zone, and a portion of the crown contour exists above a radius arc of approximately 5.25 inches.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 11, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: D. CLAYTON EVANS, EVAN D. GIBBS, MATTHEW T. CACKETT, STEVEN M. EHLERS
  • Aerodynamic hosel
    Patent number: D647155
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 18, 2011
    Assignee: Callaway Golf Company
    Inventors: Steven M. Ehlers, Matthew T. Cackett, D. Clayton Evans, Matthew Myers