Patents by Inventor David M. Bartels

David M. Bartels 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: 10722759
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: July 28, 2020
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Patent number: 10343025
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 9, 2019
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Patent number: 10029153
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: July 24, 2018
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Patent number: 10016660
    Abstract: A unique method of embedding an RFID chip into the core of a golf ball and using it in the application of a limited flight range ball for use in a range setup that can receive and monitor RFID signals is disclosed herein. The density of the core material is adjusted in relation to the mass of the RFID chip. The golf ball with an embedded RFID chip conforms to a mass limitation of the USGA.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 10, 2018
    Assignee: Callaway Golf Company
    Inventors: Vince Simonds, David M. Bartels, Grady C. Crahan, Craig Schnell
  • Patent number: 9737765
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: August 22, 2017
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Patent number: 9707454
    Abstract: A unique method of embedding an RFID chip into the core of a golf ball and using it in the application of a limited flight range ball for use in a range setup that can receive and monitor RFID signals is disclosed herein. The density of the core material is adjusted in relation to the mass of the RFID chip. The golf ball with an embedded RFID chip conforms to a mass limitation of the USGA.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: July 18, 2017
    Assignee: Callaway Golf Company
    Inventors: Vince Simonds, David M. Bartels, Grady C. Crahan, Craig Schnell
  • Patent number: 9259620
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: February 16, 2016
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Patent number: 8651976
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: February 18, 2014
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Patent number: 8425351
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms and the core has a deflection ranging from 0.120 inch to 0.095 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over them mantle.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: April 23, 2013
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Publication number: 20120202620
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 220 pounds and the core has a deflection ranging from 0.120 inch to 0.080 inch under a load of 220 pounds. An inner mantle layer is disposed over the core, an outer mantle is disposed over the inner mantle layer, and a cover is disposed over the outer mantle.
    Type: Application
    Filed: April 19, 2012
    Publication date: August 9, 2012
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: Steven S. Ogg, David M. Bartels
  • Publication number: 20120077620
    Abstract: A golf ball having a very low compression and a high COR is disclosed herein. The core preferably comprises a single neodymium-catalyzed polybutadiene, and has a diameter ranging from 1.575 inch to 1.62 inch with a compression ranging from 20 to 45. The cover preferably has a thickness ranging from 0.038 inch to 0.045 inch, and a Shore D hardness ranging from 50 to 58. The golf ball preferably has a coefficient of restitution of at least 0.780, and a compression ranging from 35 to 50.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: STEVEN S. OGG, DAVID M. BARTELS
  • Publication number: 20110269573
    Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms and the core has a deflection ranging from 0.120 inch to 0.095 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over them mantle.
    Type: Application
    Filed: April 21, 2011
    Publication date: November 3, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: STEVEN S. OGG, DAVID M. BARTELS
  • Publication number: 20110244983
    Abstract: The method of the present invention comprises dissolving an aziridine in water in a 1:1 ratio to form an aziridine-water solution. Then, pouring the aziridine-water solution into a water-born polyurethane dispersion while stirring to form a resultant polyurethane dispersion and diluting the resultant polyurethane dispersion with distilled water to form a diluted polyurethane dispersion. The mantle core 22 of the golf ball 20 is then immersed into the diluted polyurethane dispersion to form a coated mantle core and lastly, the coated mantle core 22 is dried at room temperature.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: KONG SHEN, SHANE R. PARNELL, DAVID M. BARTELS
  • Publication number: 20110130217
    Abstract: A golf ball having a very low compression and a high COR is disclosed herein. The core preferably comprises a single neodymium-catalyzed polybutadiene, and has a diameter ranging from 1.575 inch to 1.62 inch with a PGA compression ranging from 20 to 45. The cover preferably has a thickness ranging from 0.038 inch to 0.045 inch, and a Shore D hardness ranging from 50 to 58. The golf ball preferably has a coefficient of restitution of at least 0.780, and a PGA compression ranging from 35 to 50.
    Type: Application
    Filed: February 7, 2011
    Publication date: June 2, 2011
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: STEVEN S. OGG, DAVID M. BARTELS
  • Patent number: 7918748
    Abstract: A golf ball having a very low compression and a high COR is disclosed herein. The core preferably comprises a single neodymium-catalyzed polybutadiene, and has a diameter ranging from 1.575 inch to 1.62 inch with a PGA compression ranging from 20 to 45. The cover preferably has a thickness ranging from 0.038 inch to 0.045 inch, and a Shore D hardness ranging from 50 to 58. The golf ball preferably has a coefficient of restitution of at least 0.780, and a PGA compression ranging from 35 to 50.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: April 5, 2011
    Assignee: Callaway Golf Company
    Inventors: Steven S. Ogg, David M. Bartels
  • Publication number: 20100087274
    Abstract: A golf ball having a very low compression and a high COR is disclosed herein. The core preferably comprises a single neodymium-catalyzed polybutadiene, and has a diameter ranging from 1.575 inch to 1.62 inch with a compression ranging from 20 to 45. The cover preferably has a thickness ranging from 0.038 inch to 0.045 inch, and a Shore D hardness ranging from 50 to 58. The golf ball preferably has a coefficient of restitution of at least 0.780, and a compression ranging from 35 to 50.
    Type: Application
    Filed: September 9, 2009
    Publication date: April 8, 2010
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: STEVEN S. OGG, DAVID M. BARTELS
  • Publication number: 20100087277
    Abstract: A golf ball having a very low compression and a high COR is disclosed herein. The core preferably comprises a single neodymium-catalyzed polybutadiene, and has a diameter ranging from 1.575 inch to 1.62 inch with a PGA compression ranging from 20 to 45. The cover preferably has a thickness ranging from 0.038 inch to 0.045 inch, and a Shore D hardness ranging from 50 to 58. The golf ball preferably has a coefficient of restitution of at least 0.780, and a PGA compression ranging from 35 to 50.
    Type: Application
    Filed: May 20, 2009
    Publication date: April 8, 2010
    Applicant: CALLAWAY GOLF COMPANY
    Inventors: STEVEN S. OGG, DAVID M. BARTELS
  • Patent number: 6992163
    Abstract: A curative blend for a thermosetting polyurethane material that allows for a polyurethane material with greater durability is disclosed herein. The curative blend is composed of 4,4?-methylenebis-(2,6-diethyl)-aniline and a second curing agent selected from the group consisting of N,N?-bis-alkyl-p-phenylenediamine, N,N?-dialkylamino-diphenylmethane with tetrapropoxylated ethylenediamine and an aliphatic diamine. A preferred polyurethane prepolymer is polytetramethylene ether glycol terminated toluene diisocyanate prepolymer. The thermosetting polyurethane is preferably utilized as a cover for a golf ball. The cover is preferably formed over a core and boundary layer.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: January 31, 2006
    Assignee: Callaway Golf Company
    Inventors: Val J. Cupples, David M. Bartels, Pijush K. Dewanjee, Humayun Khan, Steven S. Ogg
  • Patent number: 6951519
    Abstract: A prepolymer blend for a thermosetting polyurethane material that allows for control of the reaction time is disclosed herein. The prepolymer blend is preferably composed of a polyurethane prepolymer and dimethyl methylphosphonate. The thermosetting polyurethane is preferably utilized as a cover for a golf ball. The cover is preferably formed over a core and boundary layer.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: October 4, 2005
    Assignee: Callaway Golf Company
    Inventors: Pijush K. Dewanjee, Michael S. Green, David M. Bartels
  • Patent number: 6932721
    Abstract: The present invention is a golf ball that has a coefficient of restitution at 143 feet per second that is greater than 0.8015, and an USGA initial velocity less than 255.0 feet per second. The golf ball is preferably a solid three-piece golf ball with a thermosetting polyurethane cover, an ionomer blend intermediate layer and a polybutadiene core.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: August 23, 2005
    Assignee: Callaway Golf Company
    Inventors: Michael S. Yagley, Steven S. Ogg, Pijush K. Dewanjee, David M. Bartels