Patents by Inventor Richard L. Keller

Richard L. Keller 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: 10312668
    Abstract: A spark plug has a firing pad attached to a center electrode or to a ground electrode. The firing pad is attached via laser welding and has a sparking surface with an overall fused area and an unfused area. In one or more embodiments, the overall fused area is located in part or more inboard of a peripheral edge of the firing pad.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: June 4, 2019
    Assignee: FEDERAL-MOGUL IGNITION COMPANY
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Publication number: 20170237235
    Abstract: A spark plug has a firing pad attached to a center electrode or to a ground electrode. The firing pad is attached via laser welding and has a sparking surface with an overall fused area and an unfused area. In one or more embodiments, the overall fused area is located in part or more inboard of a peripheral edge of the firing pad.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Patent number: 9673593
    Abstract: A spark plug has a firing pad attached to a center electrode or to a ground electrode. The firing pad is attached via laser welding and has a sparking surface with an overall fused area and an unfused area. In one or more embodiments, the overall fused area is located in part or more inboard of a peripheral edge of the firing pad.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: June 6, 2017
    Assignee: Federal-Mogul Ignition Company
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Patent number: 9368943
    Abstract: A spark plug having a metal shell, an insulator, a center electrode, a ground electrode, and a multi-layer sparking component. The multi-layer sparking component is attached at a firing end of the ground electrode and includes a thin precious metal layer formed overtop a base metal layer and, according to some embodiments, overhangs the end of the ground electrode. The precious metal and base metal layers may be pre-manufactured together as a bi-metal ribbon, sheet or laminate before the multi-layer sparking component is attached to the ground electrode.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: June 14, 2016
    Assignee: FEDERAL-MOGUL IGNITION COMPANY
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Patent number: 9318879
    Abstract: A spark plug has a firing pad attached to a center electrode or a ground electrode by way of a fused portion. In one or more embodiments, the firing pad is composed of a precious metal material. The fused portion can be formed in such a way that a material composition thereof at a sparking surface of the firing pad has a greater percentage of the precious metal material than a material of the underlying electrode to which the firing pad is attached.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: April 19, 2016
    Assignee: Federal-Mogul Ignition Company
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Patent number: 9231379
    Abstract: A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: January 5, 2016
    Inventors: Kevin J. Kowalski, Nathan A. Thomson, Richard L. Keller
  • Patent number: 9130356
    Abstract: A spark plug includes a metallic shell, an insulator, a center electrode, a ground electrode, and a thin firing pad. The thin firing pad is made from a noble metal and can be attached to the center electrode, the ground electrode, or to both. In some examples, the thin firing pad possesses certain geometric properties and relationships that can improve ignitability and durability of the thin firing pad.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: September 8, 2015
    Assignee: Federal-Mogul Ignition Company
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Publication number: 20150236482
    Abstract: A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad.
    Type: Application
    Filed: April 28, 2015
    Publication date: August 20, 2015
    Inventors: Kevin J. Kowalski, Nathan A. Thomson, Richard L. Keller
  • Patent number: 9083156
    Abstract: An electrode core material that may be used in electrodes of spark plugs and other ignition devices to provide increased thermal conductivity to the electrodes. The electrode core material is a precipitate-strengthened copper alloy and includes precipitates dispersed within a copper (Cu) matrix such that the electrode core material has a multi-phase microstructure. In several exemplary embodiments, the precipitates include: particles of iron (Fe) and phosphorous, particles of beryllium, or particles of nickel and silicon.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: July 14, 2015
    Assignee: Federal-Mogul Ignition Company
    Inventors: Shuwei Ma, Richard L. Keller, John A. Burrows
  • Patent number: 9041274
    Abstract: A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 26, 2015
    Assignee: Federal-Mogul Ignition Company
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Publication number: 20140265813
    Abstract: A spark plug having a metal shell, an insulator, a center electrode, a ground electrode, and a multi-layer sparking component. The multi-layer sparking component is attached at a firing end of the ground electrode and includes a thin precious metal layer formed overtop a base metal layer and, according to some embodiments, overhangs the end of the ground electrode. The precious metal and base metal layers may be pre-manufactured together as a bi-metal ribbon, sheet or laminate before the multi-layer sparking component is attached to the ground electrode.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Publication number: 20140232254
    Abstract: An electrode core material that may be used in electrodes of spark plugs and other ignition devices to provide increased thermal conductivity to the electrodes. The electrode core material is a precipitate-strengthened copper alloy and includes precipitates dispersed within a copper (Cu) matrix such that the electrode core material has a multi-phase microstructure. In several exemplary embodiments, the precipitates include: particles of iron (Fe) and phosphorous, particles of beryllium, or particles of nickel and silicon.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 21, 2014
    Inventors: Shuwei Ma, Richard L. Keller, John A. Burrows
  • Publication number: 20140210334
    Abstract: A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad.
    Type: Application
    Filed: January 28, 2014
    Publication date: July 31, 2014
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Publication number: 20140111078
    Abstract: A spark plug has a firing pad attached to a center electrode or a ground electrode by way of a fused portion. In one or more embodiments, the firing pad is composed of a precious metal material. The fused portion can be formed in such a way that a material composition thereof at a sparking surface of the firing pad has a greater percentage of the precious metal material than a material of the underlying electrode to which the firing pad is attached.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 24, 2014
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Patent number: 8680758
    Abstract: A spark plug and method of construction thereof is provided. The spark plug includes a metal shell having a through cavity, a lower insulator and a plastic upper insulator. The lower insulator is received in the through cavity and has a through passage with a center electrode received therein. A ground electrode is operatively attached to the shell in spaced relation from the ground electrode to provide a spark gap. The plastic upper insulator has a distal end received in the through cavity of the shell and a terminal end extending axially outwardly from the shell. The upper insulator has a through passage extending between the terminal end and the distal end. An elongate conductive member is received in the through passage of the upper insulator and is configured for electrical communication with the center electrode.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: March 25, 2014
    Assignee: Federal-Mogul Ignition Company
    Inventors: Kevin L. Miller, Richard L. Keller, William J. Walker, Jr., James D. Lykowski, Shuwei Ma, Matthew C. Ware, John W. Hoffman, Mark S. McMurray, Brian A. Bolduc, David Walker, Myron J. Schmenk, James L. May, Kevin J. Kowalski
  • Publication number: 20140042892
    Abstract: A spark plug has a firing pad attached to a center electrode or to a ground electrode. The firing pad is attached via laser welding and has a sparking surface with an overall fused area and an unfused area. In one or more embodiments, the overall fused area is located in part or more inboard of a peripheral edge of the firing pad.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicant: Federal-Mogul Ignition Company
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Publication number: 20130320835
    Abstract: A spark plug includes a metallic shell, an insulator, a center electrode, a ground electrode, and a thin firing pad. The thin firing pad is made from a noble metal and can be attached to the center electrode, the ground electrode, or to both. In some examples, the thin firing pad possesses certain geometric properties and relationships that can improve ignitability and durability of the thin firing pad.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 5, 2013
    Inventors: Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller
  • Patent number: 8569940
    Abstract: A spark plug includes a metallic shell, an insulator, a center electrode body, a ground electrode body, and a ground electrode tip. In one embodiment, the ground electrode tip includes a non-precious metal piece and a precious metal piece attached to each other. The non-precious metal piece has a side surface attached to a free end surface of the ground electrode body.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: October 29, 2013
    Assignee: Federal-Mogul Ignition Company
    Inventors: Richard L. Keller, Kevin J. Kowalski
  • Patent number: 8519607
    Abstract: A spark plug includes an electrode tip assembly located at an axially-facing free end surface of an electrode body. The electrode tip assembly includes an electrode tip body and a firing tip and has a longitudinal axis that is generally perpendicular to a longitudinal axis of the electrode body. The electrode tip body may be a Ni-alloy piece and is attached to the electrode body, and the firing tip may be an Ir-alloy piece with a sparking surface that faces a spark gap. The electrode body may include a groove formed in the axially-facing free end surface that is useful to help position the electrode tip assembly for attachment. The spark gap can be formed between opposing electrode tip assemblies, and the size of the spark gap can be adjusted during assembly without the need for bending the electrode body.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 27, 2013
    Assignee: Federal-Mogul Ignition Company
    Inventors: Kevin J. Kowalski, Richard L. Keller, Frederick J. Quitmeyer, Richard Llope
  • Publication number: 20130002122
    Abstract: A spark plug includes an electrode tip assembly located at an axially-facing free end surface of an electrode body. The electrode tip assembly includes an electrode tip body and a firing tip and has a longitudinal axis that is generally perpendicular to a longitudinal axis of the electrode body. The electrode tip body may be a Ni-alloy piece and is attached to the electrode body, and the firing tip may be an Ir-alloy piece with a sparking surface that faces a spark gap. The electrode body may include a groove formed in the axially-facing free end surface that is useful to help position the electrode tip assembly for attachment. The spark gap can be formed between opposing electrode tip assemblies, and the size of the spark gap can be adjusted during assembly without the need for bending the electrode body.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: FEDERAL-MOGUL IGNITION COMPANY
    Inventors: Kevin J. Kowalski, Richard L. Keller, Frederick J. Quitmeyer, Richard Llope