Patents by Inventor Matthew R. Daraskavich
Matthew R. Daraskavich 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).
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Patent number: 9821203Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: GrantFiled: June 8, 2016Date of Patent: November 21, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Keith F. Dolezel, Matthew R. Daraskavich
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Patent number: 9814951Abstract: A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of first micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of second micro-grooves overlaid on the first micro-grooves, each of the second micro-grooves having an average depth greater than the average depth of the first micro-grooves. Some embodiments can also have a plurality of textured surface treatment regions superimposed on the overlaid first and second micro-grooves so as to at least partially intersect the micro-grooves.Type: GrantFiled: April 1, 2016Date of Patent: November 14, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Patrick Ripp, Roberto Aguayo, Jeffrey D. Brunski, Matthew R. Daraskavich, Sharon J. Park
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Patent number: 9737775Abstract: A system for fitting golf clubs to golfers that enables an overall club length to be varied without varying a length of a shaft. The system enables a greater number of combinations of club characteristics, such as shaft flex, brand, and length, to be contained within a club fitting cart and/or for a same number of combinations of club characteristics to be contained within a smaller cart.Type: GrantFiled: March 15, 2013Date of Patent: August 22, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Jeffrey D. Brunski, Matthew R. Daraskavich, Brian D. Schielke, Dan S. Nivanh
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Patent number: 9737769Abstract: A golf club includes a club head having a volume of greater than about 360 cm3 and a mass less than 200 g. A shaft attachable to the club head has a tip end, a butt end, and a shaft balance point distance, BPs, as measured from the butt end, of no more than 19 inches. And the golf club has a mass less than 300 g.Type: GrantFiled: January 15, 2015Date of Patent: August 22, 2017Assignee: SRI SPORTS LIMITEDInventors: Dustin J. Brekke, Jeff D. Brunski, Matthew R. Daraskavich, Samuel G. Lacey, Nathaniel J. Radcliffe, Brian D. Schielke
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Patent number: 9700774Abstract: A system for fitting golf clubs to golfers that enables an overall club length to be varied without varying a length of a shaft. The system enables a greater number of combinations of club characteristics, such as shaft flex, brand, and length, to be contained within a club fitting cart and/or for a same number of combinations of club characteristics to be contained within a smaller cart.Type: GrantFiled: March 15, 2013Date of Patent: July 11, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Jeffrey D. Brunski, Matthew R. Daraskavich, Brian D. Schielke, Dan S. Nivanh
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Publication number: 20170080302Abstract: A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of textured surface treatment regions superimposed on the micro-grooves so as to at least partially intersect the micro-grooves.Type: ApplicationFiled: December 6, 2016Publication date: March 23, 2017Applicant: DUNLOP SPORTS CO. LTD.Inventors: Roberto AGUAYO, Matthew R. DARASKAVICH, Sharon J. PARK, Jeffrey D. BRUNSKI
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Patent number: 9579550Abstract: A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of textured surface treatment regions superimposed on the micro-grooves so as to at least partially intersect the micro-grooves.Type: GrantFiled: February 5, 2015Date of Patent: February 28, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Roberto Aguayo, Jeffrey D. Brunski, Matthew R. Daraskavich, Sharon J. Park
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Publication number: 20170050094Abstract: A method of selecting a preferred golf shaft for a player who uses an existing golf shaft, according to one or more aspects of the present invention, may comprise gathering a plurality of empirical data sets, each data set corresponding to an individual golf shaft selected from a plurality of golf shafts; providing a plurality of specification codes, each associated with an individual empirical data set of the plurality of empirical data sets; from the plurality of specification codes, identifying a first specification code associated with the existing golf shaft; gathering feedback associated with the existing golf shaft from the player; and using the feedback to select, from the plurality of specification codes, a second specification code corresponding to the preferred golf shaft.Type: ApplicationFiled: November 1, 2016Publication date: February 23, 2017Applicant: SRI SPORTS LIMITEDInventors: Dustin J. BREKKE, Matthew R. DARASKAVICH, Nathaniel J. RADCLIFFE
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Publication number: 20160279488Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: ApplicationFiled: June 8, 2016Publication date: September 29, 2016Applicant: DUNLOP SPORTS CO., LTD.Inventors: Keith F. DOLEZEL, Matthew R. DARASKAVICH
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Publication number: 20160213984Abstract: A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of first micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of second micro-grooves overlaid on the first micro-grooves, each of the second micro-grooves having an average depth greater than the average depth of the first micro-grooves. Some embodiments can also have a plurality of textured surface treatment regions superimposed on the overlaid first and second micro-grooves so as to at least partially intersect the micro-grooves.Type: ApplicationFiled: April 1, 2016Publication date: July 28, 2016Applicant: DUNLOP SPORTS CO. LTD.Inventors: Patrick RIPP, Roberto AGUAYO, Jeffrey D. BRUNSKI, Matthew R. DARASKAVICH, Sharon J. PARK
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Patent number: 9381407Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: GrantFiled: December 5, 2014Date of Patent: July 5, 2016Assignee: Dunlop Sports Co., LtdInventors: Keith F. Dolezel, Matthew R. Daraskavich
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Patent number: 9308422Abstract: A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of first micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of second micro-grooves overlaid on the first micro-grooves, each of the second micro-grooves having an average depth greater than the average depth of the first micro-grooves. Some embodiments can also have a plurality of textured surface treatment regions superimposed on the overlaid first and second micro-grooves so as to at least partially intersect the micro-grooves.Type: GrantFiled: September 10, 2014Date of Patent: April 12, 2016Assignee: DUNLOP SPORTS CO. LTD.Inventors: Patrick Ripp, Roberto Aguayo, Jeffrey D. Brunski, Matthew R. Daraskavich, Sharon J. Park
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Publication number: 20150209627Abstract: A golf club head comprises a loft angle no less than 18°, a striking face, a sole portion, and a top portion having an exterior surface. In an imaginary vertical plane spaced from a face center by no more than 10 mm and perpendicular to an imaginary striking face plane, an imaginary line segment has a length of 25 mm, a first endpoint located in the imaginary striking face plane, a second endpoint located above the exterior surface, and forms an angle ? with the striking face plane between 55° and 65°. The line segment is tangent to the exterior surface at a first point. A second point is located on the imaginary line segment and spaced from the first point by no less than 1 mm. The second point is spaced from the exterior surface by a gap distance that is no greater than 0.15 mm.Type: ApplicationFiled: April 2, 2015Publication date: July 30, 2015Inventors: Jeff D. BRUNSKI, Darius CYRULIK, Matthew R. DARASKAVICH, Michael T. PRICHARD, Ryan J A. RITCHIE, Michael J. COHEN
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Publication number: 20150196812Abstract: A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of textured surface treatment regions superimposed on the micro-grooves so as to at least partially intersect the micro-grooves.Type: ApplicationFiled: February 5, 2015Publication date: July 16, 2015Applicant: Dunlop Sports Company, Ltd.Inventors: Roberto AGUAYO, Jeffrey D. BRUNSKI, Matthew R. DARASKAVICH, Sharon J. PARK
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Publication number: 20150157903Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: ApplicationFiled: December 5, 2014Publication date: June 11, 2015Applicant: Dunlop Sports Co, LtdInventors: Keith F. DOLEZEL, Matthew R. DARASKAVICH
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Publication number: 20150126297Abstract: A golf club includes a club head having a volume of greater than about 360 cm3 and a mass less than 200 g. A shaft attachable to the club head has a tip end, a butt end, and a shaft balance point distance, BPs, as measured from the butt end, of no more than 19 inches. And the golf club has a mass less than 300 g.Type: ApplicationFiled: January 15, 2015Publication date: May 7, 2015Inventors: Dustin J. BREKKE, Jeff D. BRUNSKI, Matthew R. DARASKAVICH, Samuel G. LACEY, Nathaniel J. RADCLIFFE, Brian D. SCHIELKE
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Patent number: 9011266Abstract: A golf club head comprises a loft angle no less than 18°, a striking face, a sole portion, and a top portion having an exterior surface. In an imaginary vertical plane spaced from a face center by no more than 10 mm and perpendicular to an imaginary striking face plane, an imaginary line segment has a length of 25 mm, a first endpoint located in the imaginary striking face plane, a second endpoint located above the exterior surface, and forms an angle ? with the striking face plane between 55° and 65°. The line segment is tangent to the exterior surface at a first point. A second point is located on the imaginary line segment and spaced from the first point by no less than 1 mm. The second point is spaced from the exterior surface by a gap distance that is no greater than 0.15 mm.Type: GrantFiled: August 7, 2012Date of Patent: April 21, 2015Assignee: Dunlop Sports Co. Ltd.Inventors: Jeffrey D. Brunski, Darius Cyrulik, Matthew R. Daraskavich, Michael T. Prichard, Ryan J. A. Ritchie, Michael J. Cohen
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Patent number: 8979670Abstract: A golf club head includes a heel portion, a toe portion, a hosel, and a striking face. The striking face includes a plurality of scorelines each having an average depth no less than about 0.10 mm, a plurality of micro-grooves each having an average depth no greater than about 0.010 mm, and a plurality of textured surface treatment regions superimposed on the micro-grooves so as to at least partially intersect the micro-grooves.Type: GrantFiled: March 14, 2013Date of Patent: March 17, 2015Assignee: Dunlop Sports Company, Ltd.Inventors: Roberto Aguayo, Jeffrey D. Brunski, Matthew R. Daraskavich, Sharon J. Park
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Patent number: 8951142Abstract: A golf club according to one or more aspects of the present invention may have a mass less than 300 g, a length greater than about 45 inches, a swing weight between D0 and D6, a head weighing less than about 200 g, a club-head volume of at least about 360 cm3, a grip weighing less than about 50 g, and a shaft having a tip end, a butt end, and a shaft balance point located no more than 24 inches from the butt end. The shaft may have a torsional displacement angle greater than about 5.5° and a mass less than about 50 g. A coordinate system having x-, y-, and z-axes may have its origin at the center of gravity of the club head. The golf club head may have a moment of inertia of at least about 4500 g·cm2 about the z-axis and a moment of inertia of at least about 3000 g·cm2 about the y-axis.Type: GrantFiled: July 3, 2012Date of Patent: February 10, 2015Assignee: SRI Sports LimitedInventors: Dustin J. Brekke, Jeff D. Brunski, Matthew R. Daraskavich, Samuel G. Lacey, Nathaniel J. Radcliffe, Brian D. Schielke
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Patent number: 8920258Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: GrantFiled: August 6, 2012Date of Patent: December 30, 2014Assignee: Dunlop Sports Co. Ltd.Inventors: Keith F. Dolezel, Matthew R. Daraskavich