Patents by Inventor Michael J. Wallans

Michael J. Wallans 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: 20170100647
    Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Applicant: SRI SPORTS LIMITED
    Inventors: John J. RAE, Nathaniel J. RADCLIFFE, Daniel J. STONE, Trent E. GARNER, Brad S. HOOLEY, Robert J. HORACEK, Sam G. LACEY, Jeff D. BRUNSKI, Kevin SCHAEFFER, Scott A. CARLYLE, Stephen C. CHIEN, Craig R. SCHNELL, Douglas E. ROBERTS, Dan S. NIVANH, Michael J. WALLANS
  • Publication number: 20170087428
    Abstract: A golf club head according to one or more aspects of the present invention may include a face portion or strike-face wall comprising a top inner boundary, an intermediate inner boundary, and a bottom inner boundary having a bottom-inner-boundary toe portion and a bottom-inner-boundary heel portion. The strike-face wall may further include a first uniform-thickness region, adjoining the top inner boundary, and a variable-thickness region adjoining the uniform-thickness region and a majority of the bottom inner boundary. In another example, the variable-thickness may adjoin a majority of the top inner boundary and the uniform-thickness region may adjoin a majority of the bottom inner boundary.
    Type: Application
    Filed: December 14, 2016
    Publication date: March 30, 2017
    Applicant: SRI SPORTS LIMITED
    Inventors: Jeff D. BRUNSKI, Samuel G. LACEY, Dan S. NIVANH, Nathaniel J. RADCLIFFE, John J. RAE, Mark BLUMENKRANTZ, Rory C. STEWART, Michael J. WALLANS
  • Patent number: 9561405
    Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: February 7, 2017
    Assignee: SRI SPORTS LIMITED
    Inventors: John J. Rae, Nathaniel J. Radcliffe, Daniel J. Stone, Trent E. Garner, Brad S. Hooley, Robert J. Horacek, Sam G. Lacey, Jeff D. Brunski, Kevin Schaeffer, Scott A. Carlyle, Stephen C. Chien, Craig R. Schnell, Douglas E. Roberts, Dan S. Nivanh, Michael J. Wallans
  • Publication number: 20160303439
    Abstract: A hollow golf club head includes a sole, a crown, a skirt, and a striking face. The golf club includes a junction interconnecting the sole, crown, and skirt to the striking face, the junction including at least one stiffening member.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Applicant: SRI SPORTS LIMITED
    Inventors: Robert J. HORACEK, Nathaniel J. RADCLIFFE, John J. RAE, Michael J. WALLANS, Sam G. LACEY
  • Patent number: 9399156
    Abstract: A hollow golf club head includes a sole, a crown, a skirt, and a striking face. The golf club includes a junction interconnecting the sole, crown, and skirt to the striking face, the junction including at least one stiffening member.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 26, 2016
    Assignee: SRI SPORTS LIMITED
    Inventors: Robert J. Horacek, Nathaniel J. Radcliffe, John J. Rae, Michael J. Wallans, Sam G. Lacey
  • Publication number: 20150246267
    Abstract: An iron-type golf club head according to one or more aspects of the present disclosure may include a striking face, a rear surface opposite the striking face, and a perimeter weighting element at least partially surrounding the rear surface. The club head may further include a resilient component associated with the perimeter-weighting element, the resilient component including a recess, and a preload spacer associated with the rear surface, a portion of the preload spacer engaging the recess. At least a portion of the resilient component is compressed between the preload spacer and the perimeter weighting element.
    Type: Application
    Filed: May 18, 2015
    Publication date: September 3, 2015
    Inventor: Michael J. WALLANS
  • Patent number: 9056231
    Abstract: A golf club head according to one or more aspects of the present invention may include a strike face, a rear wall behind the strike face, and a perimeter-weighting element at least partially surrounding the rear wall. The club head may further include a preload spacer associated with the rear wall and a resilient component associated with the perimeter-weighting element. The preload spacer engages the resilient component to provide positive reinforcement of the coupling between the resilient component and the perimeter-weighting element.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: June 16, 2015
    Assignee: SRI SPORTS LIMITED
    Inventor: Michael J. Wallans
  • Publication number: 20140329615
    Abstract: A muscle-back iron golf club head includes a blade-like upper mass, a muscle-like lower mass, a planar front surface, a top surface, a sole surface, a heel surface, a toe surface, and a rear surface having a first contour. A recess is in the rear surface, the recess having a first portion in the blade-like upper mass and a second portion in the muscle-like lower mass. An insert may be provided in the recess, and such insert may substantially fill the recess and may include a back surface having a second contour which is different from the first contour of the club head rear surface.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Inventors: Douglas E. Roberts, Trent E. Garner, Kevin A. Wolfe, Daniel J. Stone, Christopher J. Beck, Todd D. Harman, Brent L. Newsome, Michael J. Wallans, Nathaniel J. Radcliffe
  • Publication number: 20140315657
    Abstract: A hollow golf club head includes a sole, a crown, a skirt, and a striking face. The golf club includes a junction interconnecting the sole, crown, and skirt to the striking face, the junction including at least one stiffening member.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Applicant: SRI Sports Limited
    Inventors: Robert J. HORACEK, Nathaniel J. RADCLIFFE, John J. RAE, Michael J. WALLANS, Sam G. LACEY
  • Publication number: 20140302946
    Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.
    Type: Application
    Filed: May 6, 2014
    Publication date: October 9, 2014
    Applicant: SRI SPORTS LIMITED
    Inventors: John J. RAE, Nathaniel J. RADCLIFFE, Daniel J. STONE, Trent E. GARNER, Brad S. HOOLEY, Robert J. HORACEK, Sam G. LACEY, Jeff D. BRUNSKI, Kevin SCHAEFFER, Scott A. CARLYLE, Stephen C. CHIEN, Craig R. SCHNELL, Douglas E. ROBERTS, Dan S. NIVANH, Michael J. WALLANS
  • Patent number: 8821314
    Abstract: A muscle-back iron golf club head includes a blade-like upper mass, a muscle-like lower mass, a planar front surface, a top surface, a sole surface, a heel surface, a toe surface, and a rear surface having a first contour. A recess is in the rear surface, the recess having a first portion in the blade-like upper mass and a second portion in the muscle-like lower mass. An insert may be provided in the recess, and such insert may substantially fill the recess and may include a back surface having a second contour which is different from the first contour of the club head rear surface.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 2, 2014
    Assignee: Dunlop Sports Co. Ltd.
    Inventors: Douglas E. Roberts, Trent E. Garner, Kevin A. Wolfe, Daniel J. Stone, Christopher J. Beck, Todd D. Harman, Brent L. Newsome, Michael J. Wallans, Nathaniel J. Radcliffe
  • Patent number: 8795100
    Abstract: A hollow golf club head includes a sole, a crown, a skirt, and a striking face. The golf club includes a junction interconnecting the sole, crown, and skirt to the striking face, the junction including at least one stiffening member.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 5, 2014
    Assignee: SRI Sports Limited
    Inventors: Robert J. Horacek, Nathaniel J. Radcliffe, John J. Rae, Michael J. Wallans, Sam G. Lacey
  • Publication number: 20140206475
    Abstract: A golf club head according to one or more aspects of the present invention may include a face portion or strike-face wall comprising a top inner boundary, an intermediate inner boundary, and a bottom inner boundary having a bottom-inner-boundary toe portion and a bottom-inner-boundary heel portion. The strike-face wall may further include a first uniform-thickness region, adjoining the top inner boundary, and a variable-thickness region adjoining the uniform-thickness region and a majority of the bottom inner boundary. In another example, the variable-thickness may adjoin a majority of the top inner boundary and the uniform-thickness region may adjoin a majority of the bottom inner boundary.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: SRI Sports Limited
    Inventors: Jeff D. BRUNSKI, Samuel G. LACEY, Dan S. NIVANH, Nathaniel J. RADCLIFFE, John J. RAE, Mark BLUMENKRANTZ, Rory C. STEWART, Michael J. WALLANS
  • Patent number: 8753229
    Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: June 17, 2014
    Assignee: SRI Sports Limited
    Inventors: John J. Rae, Nathaniel J. Radcliffe, Daniel J. Stone, Trent E. Garner, Brad S. Hooley, Robert J. Horacek, Sam G. Lacey, Jeff D. Brunski, Kevin Schaeffer, Scott A. Carlyle, Stephen C. Chien, Craig R. Schnell, Douglas E. Roberts, Dan S. Nivanh, Michael J. Wallans
  • Patent number: 8715107
    Abstract: A golf club head according to one or more aspects of the present invention may include a face portion or strike-face wall comprising a top inner boundary, an intermediate inner boundary, and a bottom inner boundary having a bottom-inner-boundary toe portion and a bottom-inner-boundary heel portion. The strike-face wall may further include a first uniform-thickness region, adjoining the top inner boundary, and a variable-thickness region adjoining the uniform-thickness region and a majority of the bottom inner boundary. In another example, the variable-thickness may adjoin a majority of the top inner boundary and the uniform-thickness region may adjoin a majority of the bottom inner boundary.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: May 6, 2014
    Assignee: SRI Sports Limited
    Inventors: Jeff D. Brunski, Samuel G. Lacey, Dan S. Nivanh, Nathaniel J. Radcliffe, John J. Rae, Mark Blumenkrantz, Rory C. Stewart, Michael J. Wallans
  • Publication number: 20130324292
    Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 5, 2013
    Applicant: SRI SPORTS LIMITED
    Inventors: John J. RAE, Nathaniel J. RADCLIFFE, Daniel J. STONE, Trent E. GARNER, Brad S. HOOLEY, Robert J. HORACEK, Sam G. LACEY, Jeff D. BRUNSKI, Kevin SCHAEFFER, Scott A. CARLYLE, Stephen C. CHIEN, Craig R. SCHNELL, Douglas E. ROBERTS, Dan S. NIVANH, Michael J. WALLANS
  • Publication number: 20130316847
    Abstract: A golf club head according to one or more aspects of the present invention may include a strike face, a rear wall behind the strike face, and a perimeter-weighting element at least partially surrounding the rear wall. The club head may further include a preload spacer associated with the rear wall and a resilient component associated with the perimeter-weighting element. The preload spacer engages the resilient component to provide positive reinforcement of the coupling between the resilient component and the perimeter-weighting element.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 28, 2013
    Applicant: SRI SPORTS LIMITED
    Inventor: Michael J. Wallans
  • Publication number: 20130281228
    Abstract: A hollow golf club head includes a sole, a crown, a skirt, and a striking face. The golf club includes a junction interconnecting the sole, crown, and skirt to the striking face, the junction including at least one stiffening member.
    Type: Application
    Filed: May 17, 2013
    Publication date: October 24, 2013
    Applicant: SRI SPORTS LIMITED
    Inventors: Robert J. HORACEK, Nathaniel J. RADCLIFFE, John J. RAE, Michael J. WALLANS, Sam G. LACEY
  • Patent number: 8529369
    Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: September 10, 2013
    Assignee: SRI Sports Limited
    Inventors: John J. Rae, Nathaniel J. Radcliffe, Daniel J. Stone, Trent E. Garner, Brad S. Hooley, Robert J. Horacek, Sam G. Lacey, Jeff D. Brunski, Kevin Schaeffer, Scott A. Carlyle, Stephen C. Chien, Craig R. Schnell, Douglas E. Roberts, Dan S. Nivanh, Michael J. Wallans
  • Patent number: 8465380
    Abstract: A hollow golf club head includes a sole, a crown, a skirt, and a striking face. The golf club includes a junction interconnecting the sole, crown, and skirt to the striking face, the junction including at least one stiffening member.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: June 18, 2013
    Assignee: SRI Sports Limited
    Inventors: Robert J. Horacek, Nathaniel J. Radcliffe, John J. Rae, Michael J. Wallans, Sam G. Lacey