Patents by Inventor John D Cathcart

John D Cathcart 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).

  • Cross-exit exhaust system
    Patent number: 6662900
    Abstract: An exhaust system features first and second exhaust conduits fluidly coupled to first and second cylinder banks of an associated internal combustion engine. The first and second conduits cross over each other downstream of the engine and are coupled together by a common chamber. The common chamber allows pressure pulses in the first and second conduits flowing past the chamber in opposite directions to at least partially cancel each other, thereby reducing low frequency exhaust noise.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: December 16, 2003
    Assignee: DaimlerChrysler Corporation
    Inventors: John D Cathcart, James P Salmonowicz
  • Cross-exit exhaust system
    Publication number: 20030116378
    Abstract: An exhaust system features first and second exhaust conduits fluidly coupled to first and second cylinder banks of an associated internal combustion engine. The first and second conduits cross over each other downstream of the engine and are coupled together by a common chamber. The common chamber allows pressure pulses in the first and second conduits flowing past the chamber in opposite directions to at least partially cancel each other, thereby reducing low frequency exhaust noise.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: John D. Cathcart, James P. Salmonowicz
  • Thermally-managed fuel vapor recovery canister
    Patent number: 5861050
    Abstract: Described are preferred vapor recovery canisters which are useful in on-board vehicle fuel vapor recovery systems. The preferred canisters incorporate thermal management of solid adsorbent with phase change materials to improve both adsorptive and desorptive capacity of the canisters. Also described are preferred encapsulation members for use in the vapor recovery canisters.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: January 19, 1999
    Assignee: Store Heat and Produce Energy, Inc.
    Inventors: Alan Pittel, Alexander P. Rafalovich, John D. Cathcart