Patents by Inventor Konrad Lenhof

Konrad Lenhof 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).

  • Patent number: 8257193
    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: August 23, 2011
    Date of Patent: September 4, 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, Jr.
  • Patent number: 8235840
    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: August 26, 2011
    Date of Patent: August 7, 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, Jr.
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20110118047
    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: January 25, 2011
    Publication date: May 19, 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
  • Publication number: 20100120551
    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: January 22, 2010
    Publication date: May 13, 2010
    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
  • Patent number: 7491915
    Abstract: A heating apparatus (20) and method for heating golf clubs (30) during assembly is disclosed herein. The heating apparatus (20) preferably includes a frame (22), a club retention mechanism (24), a rotating mechanism (26) and a heating mechanism (28). The heating apparatus (20) is used to cure an adhesive to bond a shaft (34) to a golf club head (32).
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 17, 2009
    Assignee: Callaway Golf Company
    Inventors: Konrad Lenhof, Jerry V. Blanke, Giocchino S. Glorioso, Alan Bettencourt
  • Publication number: 20080280694
    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: October 30, 2007
    Publication date: November 13, 2008
    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
  • Patent number: 7354353
    Abstract: A method (500) for fitting a golf club to a golfer is disclosed herein. The method includes having a golfer hit a test golf club. If the test golf club is preferred, a final golf club is formed that matches the test golf club. Preferably, the final golf club matches the following parameters of the test golf club: volume, mass, mass location, inertial values, center of gravity location, club frequency, orientation, material composition and shape. In a preferred embodiment, a test golf club with an interchangeable shaft is utilized with the method.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: April 8, 2008
    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
  • Publication number: 20070004528
    Abstract: A method (500) for fitting a golf club to a golfer is disclosed herein. The method includes having a golfer hit a test golf club. If the test golf club is preferred, a final golf club is formed that matches the test golf club. Preferably, the final golf club matches the following parameters of the test golf club: volume, mass, mass location, inertial values, center of gravity location, club frequency, orientation, material composition and shape. In a preferred embodiment, a test golf club with an interchangeable shaft is utilized with the method.
    Type: Application
    Filed: August 16, 2006
    Publication date: January 4, 2007
    Inventors: Alan Hocknell, Matthew Cackett, Denver Holt, D. Evans, Daniel Stevens, James Wenck, Steven Ogg, Konrad Lenhof, Jerry Blanke, Joel Erickson
  • Publication number: 20060287125
    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 31, 2006
    Publication date: December 21, 2006
    Inventors: Alan Hocknell, Matthew Cackett, Denver Holt, D. Evans, Daniel Stevens, James Wenck, Steven Ogg, Konrad Lenhof, Jerry Blanke, Joel Erickson, Broadus Wall
  • Publication number: 20060237414
    Abstract: A heating apparatus (20) and method for heating golf clubs (30) during assembly is disclosed herein. The heating apparatus (20) preferably includes a frame (22), a club retention mechanism (24), a rotating mechanism (26) and a heating mechanism (28). The heating apparatus (20) is used to cure an adhesive to bond a shaft (34) to a golf club head (32).
    Type: Application
    Filed: June 30, 2006
    Publication date: October 26, 2006
    Inventors: Konrad Lenhof, Jerry Blanke, Giocchino Glorioso, Alan Bettencourt
  • Patent number: 7083529
    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: November 17, 2004
    Date of Patent: August 1, 2006
    Assignee: Callaway Golf Company
    Inventors: Matthew T. Cackett, Alan Hocknell, Steven S. Ogg, Konrad Lenhof, Jerry V. Blanke, Joel B. Erickson
  • Patent number: 7071450
    Abstract: A heating apparatus (20) and method for heating golf clubs (30) during assembly is disclosed herein. The heating apparatus (20) preferably includes a frame (22), a club retention mechanism (24), a rotating mechanism (26) and a heating mechanism (28). The heating apparatus (20) is used to cure an adhesive to bond a shaft (34) to a golf club head (32).
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: July 4, 2006
    Assignee: Callaway Golf Company
    Inventors: Konrad Lenhof, Jerry V. Blanke, Gioacchino S. Glorioso, Alan Bettencourt
  • Publication number: 20060105855
    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 17, 2004
    Publication date: May 18, 2006
    Applicant: CALLAWAY GOLF
    Inventors: Matthew Cackett, Alan Hocknell, Steven Ogg, Konrad Lenhof, Jerry Blanke, Joel Erickson
  • Publication number: 20060081611
    Abstract: A heating apparatus (20) and method for heating golf clubs (30) during assembly is disclosed herein. The heating apparatus (20) preferably includes a frame (22), a club retention mechanism (24), a rotating mechanism (26) and a heating mechanism (28). The heating apparatus (20) is used to cure an adhesive to bond a shaft (34) to a golf club head (32).
    Type: Application
    Filed: October 19, 2004
    Publication date: April 20, 2006
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: Konrad Lenhof, Jerry Blanke, Giocchino Glorioso, Alan Bettencourt