Patents by Inventor Donald G. Loeffler

Donald G. Loeffler 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).

  • Publication number: 20230181976
    Abstract: A golf club includes a face coupled to a body. A composite axis extends from a heel to a toe of the club and parallel to ground. The face is formed of a fiber composite material including at least first and second sets of ply arrangements. Each of the ply arrangements includes a pair of plies having first and second pluralities of fibers defining first and second angles with respect to the composite axis, respectively. The face has a ball contact surface, an rear surface, and a mid-zone positioned equidistant between the contact and rear surfaces. A majority of the first and second pluralities of fibers of the ply arrangements between the mid-zone and the contact surface are formed of glass fibers, and a majority of the first and second pluralities of ply arrangements between the mid-zone and the rear surface are formed of carbon fibers.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 15, 2023
    Applicant: Wilson Sporting Goods Co.
    Inventors: Sean P. Griffin, Robert T. Thurman, Sean S. Epling, Ty B. Goodwin, Donald G. Loeffler, James M. Earley, Jon C. Pergande, Jeremy H. Yim, Richard P. Hulock
  • Publication number: 20110039641
    Abstract: A sports racquet including a frame, at least one grommet assembly. The frame includes a head portion coupled to a handle portion. The head portion includes a hoop having inner and outer peripheral walls. At least a first set of concave recesses and channels are formed into the outer peripheral wall. The hoop includes first, second and third groups of string openings. The second and third groups of string openings are aligned with the first set of concave recesses. The second group of string openings extends through the outer peripheral wall at the first set of concave recesses. The grommet assembly engages the outer peripheral wall. The grommet assembly includes at least three pivotable elements interconnected by torque transmitting arms, each pivotable element including a string passage. The pivotable elements and the torque transmitting arms are pivotable about an axis parallel to a string bed plane.
    Type: Application
    Filed: December 18, 2009
    Publication date: February 17, 2011
    Applicant: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler, Ronald R. Rocchi, Cory Boudreau
  • Patent number: 7887444
    Abstract: A sports racquet including a frame, at least one grommet assembly. The frame includes a head portion coupled to a handle portion. The head portion includes a hoop having inner and outer peripheral walls. At least a first set of concave recesses and channels are formed into the outer peripheral wall. The hoop includes first, second and third groups of string openings. The second and third groups of string openings are aligned with the first set of concave recesses. The second group of string openings extends through the outer peripheral wall at the first set of concave recesses. The grommet assembly engages the outer peripheral wall. The grommet assembly includes at least three pivotable elements interconnected by torque transmitting arms, each pivotable element including a string passage. The pivotable elements and the torque transmitting arms are pivotable about an axis parallel to a string bed plane.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: February 15, 2011
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler, Ronald R. Rocchi, Cory Boudreau
  • Patent number: 7297080
    Abstract: A game racquet includes head portion and a handle portion. The head and handle portions include one or both of a fiber-reinforced thermoset material and a fiber-reinforced thermoplastic material. The handle portion is coupled to the head portion by shock and/or vibration absorbing material.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: November 20, 2007
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Po-Jen Cheng, Gerald J. LeVault, Donald G. Loeffler
  • Patent number: 7285062
    Abstract: A sports racquet including a frame, a string bed, and at least one cantilevered member. The frame includes a head portion coupled to a handle portion. The head portion includes a distal region, first and second side regions, and a proximal region. A string bed is formed of a plurality of cross string segments and a plurality of main string segments. The cantilevered member has a first section coupled to one of the regions, such that at least one point on the first section remains substantially fixed in relation to the region to which the first section is coupled, and a second section that is deflectable relative to the region to which the first section is coupled. At least one of the string segments is operably engaged with the member, such that when a ball impacts the string segment, the second section deflects inward toward the string bed.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: October 23, 2007
    Assignee: Wilson Sporting Goods Co.
    Inventors: Willie H. McMillan, William D. Severa, Donald G. Loeffler
  • Patent number: 6840874
    Abstract: A game racquet includes separate head and handle portions which are separated by shock and/or vibration absorbing material. Both the head portion and the handle portion are bonded to the absorbing material and are thereby connected to each other.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: January 11, 2005
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Po-Jen Cheng, Gerald J. LeVault, Donald G. Loeffler
  • Publication number: 20040043845
    Abstract: A game racquet includes separate head and handle portions which are separated by shock and/or vibration absorbing material. Both the head portion and the handle portion are bonded to the absorbing material and are thereby connected to each other.
    Type: Application
    Filed: September 3, 2003
    Publication date: March 4, 2004
    Applicant: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Po-Jen Cheng, Gerald J. LeVault, Donald G. Loeffler
  • Patent number: D520581
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: May 9, 2006
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler, Ronald R. Rocchi, Joey Gyomay Nakayama, John D. Hartman
  • Patent number: D554210
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: October 30, 2007
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler, Antoine Ballon, Ronald R. Rocchi, Paul Terry
  • Patent number: D554211
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: October 30, 2007
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler, Antoine Ballon, Ronald R. Rocchi, Paul Terry
  • Patent number: D559927
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: January 15, 2008
    Assignee: Wilson Sporting Goods Co.
    Inventors: Willie H. McMillan, William D. Severa, Donald G. Loeffler
  • Patent number: D565675
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: April 1, 2008
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler
  • Patent number: D596682
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: July 21, 2009
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler
  • Patent number: D622793
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: August 31, 2010
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler, Ronald R. Rocchi, Tong Jin Kim, Ravi Itiravivong
  • Patent number: D631521
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: January 25, 2011
    Assignee: Wilson Sporting Goods Co.
    Inventors: William D. Severa, Donald G. Loeffler, Ronald R. Rocchi, Tong Jin Kim, Ravi Itiravivong