Patents by Inventor Frederick Larry Obee

Frederick Larry Obee 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).

  • VACUUM WASTE SYSTEM HAVING A VACUUM CONTROL VALVE
    Publication number: 20020133869
    Abstract: A vacuum waste system is disclosed having a receptacle for receiving waste, the receptacle having an outlet, and a collection tank in fluid communication with the receptacle outlet. A vacuum source is in fluid communication with the collection tank to produce a partial vacuum in the collection tank. A flush actuator is provided that is operable to generate a flush command, and a flush valve is disposed between the toilet outlet and the collection tank having a normally closed position, the flush valve actuating to an open position for a flush interval in response to the flush command, thereby to control fluid communication between the collection tank and toilet outlet. A vacuum control valve is disposed between the vacuum source and the collection tank, the vacuum control valve being operable between open and closed positions thereby to control fluid communication between the collection tank and vacuum source.
    Type: Application
    Filed: March 20, 2001
    Publication date: September 26, 2002
    Inventors: Mark A. Pondelick, Frederick Larry Obee
  • Vacuum waste system having a vacuum control valve
    Patent number: 6453481
    Abstract: A vacuum waste system is disclosed having a receptacle for receiving waste, the receptacle having an outlet, and a collection tank in fluid communication with the receptacle outlet. A vacuum source is in fluid communication with the collection tank to produce a partial vacuum in the collection tank. A flush actuator is provided that is operable to generate a flush command, and a flush valve is disposed between the toilet outlet and the collection tank having a normally closed position, the flush valve actuating to an open position for a flush interval in response to the flush command, thereby to control fluid communication between the collection tank and toilet outlet. A vacuum control valve is disposed between the vacuum source and the collection tank, the vacuum control valve being operable between open and closed positions thereby to control fluid communication between the collection tank and vacuum source.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: September 24, 2002
    Assignee: EVAC International Oy
    Inventors: Mark A. Pondelick, Frederick Larry Obee