Patents by Inventor David C. Quinn

David C. Quinn 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).

  • Publication number: 20080282689
    Abstract: An exhaust gas-cooling device for use on an exhaust gas conveyance system of a vehicle to emit exhaust gases from an engine to an outlet includes a pipe defining an exhaust gas passageway that is in fluid communication with the engine, and a diffuser in fluid communication with the exhaust gas passageway. The diffuser is configured for receiving the pipe, and has a body defining an outlet of the exhaust gas passageway to the ambient, and a diffusing structure disposed on the body generally opposite the outlet. The diffusing structure has a separating structure configured for receiving and diverting the flow of exhaust gas emitted from the pipe, and a guiding structure configured for guiding the diverted flow of exhaust gas along the body to the outlet.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 20, 2008
    Applicant: International Truck Intellectual Property Company, LLC
    Inventors: Mark A. Schmale, Daniel C. Dew, David C. Quinn, Roger W. Byers, Ronald E. Schoon, Brent Koontz
  • Patent number: 5371802
    Abstract: In a noise enhancement system for use in a vehicle having an engine, a memory contains stored data representing desired sound relating to vehicle speed or the engine speed. The system is provided with a source of first signals indicative of the vehicle speed or the engine speed and a generator to generate vehicle engine noise desired by an occupant of a cabin of the vehicle. The generator includes a synthesizer to synthesize desired vehicle engine noise signals used to generate the desired vehicle engine noise and a microprocessor responsive to the first signals to use appropriate data of the stored data in dependence upon the vehicle speed or the engine speed indicated by the first signal to control the synthesizer to synthesize the desired engine noise in time with the vehicle speed or the engine speed indicated by the first signals.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: December 6, 1994
    Assignee: Group Lotus Limited
    Inventors: Anthony M. McDonald, David C. Quinn, David C. Perry