Patents by Inventor John McGahey

John McGahey 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: 9879748
    Abstract: A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. A digital valve assembly is disposed within the second rod guide member and fluidly couples chambers within the shock absorber.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 30, 2018
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Matthew L. Roessle, Thomas P. Mallin, John McGahey, Jeffrey T. Gardner
  • Patent number: 9441699
    Abstract: A shock absorber for a vehicle includes a pressure tube that defines a fluid chamber. A piston disposed within the fluid chamber divides the fluid chamber into an upper working chamber and a lower working chamber. The piston defines a compression passage and a rebound passage which extend through the piston between the upper working chamber and the lower working chamber. A valve disc assembly engages the piston and controls the flow of fluid between the upper working chamber and the lower working chamber. The valve disc assembly includes a bleed disc that defines an orifice with a substantially non-linear contour. The orifice extends to an outer diameter of the bleed disc, and forms a bleed channel between the upper working chamber and the lower working chamber.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: September 13, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Tim Lawler, Chad Rummel, Elizabeth Robbins, Daniel T. Keil, Jeroen K. Paenhuysen, John McGahey, Dajun Zhang
  • Patent number: 9285011
    Abstract: A shock absorber includes a pressure sensitive valve assembly that controls fluid flow through the pressure sensitive valve assembly based upon the velocity of the piston assembly in the shock absorber. The pressure sensitive valve assembly restricts fluid flow as the velocity of the piston in a compression stroke increases to increase the damping loads provided by the shock absorber. A secondary valve assembly controls fluid flow through the pressure sensitive valve assembly when the pressure sensitive valve assembly is in a closed position.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: March 15, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Karl Kazmirski, Darrell G. Breese, Matthew L. Roessle, John McGahey
  • Patent number: 9163691
    Abstract: A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. An electronically controlled valve assembly is disposed within the second rod guide member and is in communication with the first rod guide member.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: October 20, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Matthew L. Roessle, Karl C. Kazmirski, Thomas P. Mallin, John McGahey, Timothy Bombrys, David R. Blankenship, Jeroen K. Paenhuysen
  • Patent number: 9033121
    Abstract: A shock absorber includes a pressure sensitive valve assembly that controls fluid flow through the pressure sensitive valve assembly based upon the velocity of the piston assembly in the shock absorber. The pressure sensitive valve assembly restricts fluid flow as the velocity of the piston in a compression stroke increases to increase the damping loads provided by the shock absorber.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 19, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Karl C. Kazmirski, Darrell G. Breese, Matthew L. Roessle, John McGahey
  • Publication number: 20140332332
    Abstract: A shock absorber for a vehicle includes a pressure tube that defines a fluid chamber. A piston disposed within the fluid chamber divides the fluid chamber into an upper working chamber and a lower working chamber. The piston defines a compression passage and a rebound passage which extend through the piston between the upper working chamber and the lower working chamber. A valve disc assembly engages the piston and controls the flow of fluid between the upper working chamber and the lower working chamber. The valve disc assembly includes a bleed disc that defines an orifice with a substantially non-linear contour. The orifice extends to an outer diameter of the bleed disc, and forms a bleed channel between the upper working chamber and the lower working chamber.
    Type: Application
    Filed: May 12, 2014
    Publication date: November 13, 2014
    Applicant: Tenneco Automotive Operating Company Inc.
    Inventors: Tim Lawler, Chad Rummel, Elizabeth Robbins, Daniel T. Keil, Jeroen K. Paenhuysen, John McGahey, Dajun Zhang
  • Publication number: 20140318908
    Abstract: A shock absorber includes a pressure sensitive valve assembly that controls fluid flow through the pressure sensitive valve assembly based upon the velocity of the piston assembly in the shock absorber. The pressure sensitive valve assembly restricts fluid flow as the velocity of the piston in a compression stroke increases to increase the damping loads provided by the shock absorber. A secondary valve assembly controls fluid flow through the pressure sensitive valve assembly when the pressure sensitive valve assembly is in a closed position.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Inventors: Karl Kazmirski, Darrell G. Breese, Matthew L. Roessle, John McGahey
  • Publication number: 20140262652
    Abstract: A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. An electronically controlled valve assembly is disposed within the second rod guide member and is in communication with the first rod guide member.
    Type: Application
    Filed: July 22, 2013
    Publication date: September 18, 2014
    Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INC.
    Inventors: Matthew L. ROESSLE, Karl C. KAZMIRSKI, Thomas P. MALLIN, John MCGAHEY, Timothy BOMBRYS, David R. BLANKENSHIP, Jeroen K. PAENHUYSEN
  • Publication number: 20140262654
    Abstract: A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. A digital valve assembly is disposed within the second rod guide member and fluidly couples chambers within the shock absorber.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Tenneco Automotive Operating Company Inc.
    Inventors: Matthew L. Roessle, Thomas P. Mallin, John McGahey, Jeffrey T. Gardner
  • Publication number: 20100078275
    Abstract: A shock absorber includes a pressure sensitive valve assembly that controls fluid flow through the pressure sensitive valve assembly based upon the velocity of the piston assembly in the shock absorber. The pressure sensitive valve assembly restricts fluid flow as the velocity of the piston in a compression stroke increases to increase the damping loads provided by the shock absorber.
    Type: Application
    Filed: July 2, 2009
    Publication date: April 1, 2010
    Applicant: Tenneco Automotive Operating Company, Inc.
    Inventors: Karl C. Kazmirski, Darrell G. Breese, Matthew L. Roessle, John McGahey