Patents by Inventor Christopher J. Clear

Christopher J. Clear 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 toilet system
    Patent number: 5515554
    Abstract: A vacuum toilet system efficient transport of waste material from a toilet bowl to a collection station by means of differential pressure, comprising an actuator button, a discharge valve, a water valve, and a controller valve. The various valves are simple in construction and operate on the basis of pneumatic pressure. The system is compact enough to fit into the cabinet of a conventional toilet fixture.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: May 14, 1996
    Assignee: Airvac, Inc.
    Inventors: Christopher J. Clear, John M. Grooms
  • Vacuum toilet system and discharge valve thereof
    Patent number: 5326069
    Abstract: A vacuum toilet system for efficient transport of waste material from a toilet bowl to a collection station by means of differential pressure, comprising an actuator button, a discharge valve, a water valve, and a controller valve. The various valves are simple in construction and operate on the basis of pneumatic pressure. The system is compact enough to fit into the cabinet of a conventional toilet fixture.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: July 5, 1994
    Assignee: Burton Mechanical Contractors, Inc.
    Inventors: Christopher J. Clear, John M. Grooms
  • Portable vacuum toilet system
    Patent number: 5282281
    Abstract: A compact, self-contained, portable vacuum toilet system having a sump for collecting waste liquids by means of gravity, a differential pressure-operated discharge valve for regulating withdrawal of waste liquids from the holding sump for transport to a vacuum collection tank during a transport cycle, differential pressure-operated sensor and controller valves for regulating operation of the discharge valve in response to a hydrostatic pressure condition inside the holding sump, and a push button-operated water valve for adding water to the toilet bowl during and immediately after a flush cycle. A sink and its own push button-operated water valve may also be provided.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: February 1, 1994
    Assignee: Burton Mechanical Contractors, Inc.
    Inventors: Christopher J. Clear, John M. Grooms, Blake V. Ricks