Patents by Inventor James E. Marquedant

James E. Marquedant 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: 7341238
    Abstract: A device and method for locking out an explosion suppressor that includes a discharge valve with a load end and a discharge end. The load end and the discharge end define a discharge path therethrough. The discharge valve includes a side opening transverse of the discharge path. A storage container is connected to the discharge valve at the load end. The storage container delivers a pressurized fluid to the discharge valve through the load end when the system is in a discharge mode. A lockout member is removably insertable into the side opening. The lockout member mechanically blocks the discharge path, whereby the lockout member prevents inadvertent fluid discharge through the discharge end of the discharge path. The presence of the lockout member is monitored by a magnetic switch.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: March 11, 2008
    Assignee: Kidde-Fenwal Inc.
    Inventors: Peter Karalis, Raymond A. Stacy, Richard Zaven Karadizian, James E. Marquedant
  • Patent number: 7281672
    Abstract: An apparatus and method for dispensing fluid including a pressure vessel at a first pressure and a reservoir at a second pressure. The reservoir communicates with the pressure vessel via a first aperture and with an environment at a third pressure via a second aperture. A reservoir vent having open and closed positions, that when opened the reservoir vents to a fourth pressure, and when closed the reservoir does not vent. A piston moveably disposed within the reservoir, and defines an aperture therethrough. A first burst seal disposed in the first aperture seals the pressure vessel from the reservoir, and engaged with the piston to be moveable therewith. A second burst seal disposed in the second aperture seals the reservoir from the environment. When the reservoir vents to the fourth pressure, the piston ruptures the second seal, and a first and third pressure difference ruptures the first seal.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: October 16, 2007
    Assignee: Kidde-Fenwal, Inc.
    Inventors: Peter Karalis, Raymond A. Stacy, Richard Zaven Karadizian, James E. Marquedant, Neil O Brillhart, William Mahoney