Patents by Inventor Clarence E. Williams

Clarence E. Williams 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).

  • Remotely actuated flood free zone valve
    Patent number: 7460013
    Abstract: A remotely-actuated residential water supply cut-off system is disclosed. A remotely-actuated cut-off valve interposed in a residential water line downstream of a pressure-reducing valve. An electronic actuator is mounted on the cut-off valve and is remotely actuated to drive a DC motor in a clockwise or counterclockwise direction to open or close the cut-off valve in response to a received signal. The electronic actuator includes a transceiver, a microcontroller and a motor. The microcontroller drives the motor to open or close the valve in response to a wireless signal received by the transceiver. A handheld transceiver unit sends a signal to the actuator to open or close the cut-off valve, or operate in automatic mode.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: December 2, 2008
    Inventors: Charles Agnew Osborne, Barbara W. Poole, Donavan E. Wade, Clarence E. Williams
  • Self closing tank lid
    Patent number: 4361247
    Abstract: A safety receptacle including a tank and a lid therefor. The lid is shiftable between its open and closed positions by a linkage system connected to the lid by a linkage connector. The linkage system includes a member which overlies the lid and is connected to the linkage connector by a heat sensitive actuator which releases the linkage connector when the lid is open in the presence of fire thereby allowing the lid to close by its own weight.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: November 30, 1982
    Inventor: Clarence E. Williams
  • Frictional retainer for holding a door open
    Patent number: 4292707
    Abstract: A door in combination with a retainer which uses a frictionally restricted rotating disc to hold the door open. Closing of the door causes the disc to rotate and release the door.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: October 6, 1981
    Inventor: Clarence E. Williams
  • Door having improved closing and latching systems
    Patent number: 4265051
    Abstract: A pair of doors hinged to a frame and including a self-locking three-point latch and coordinated closing system.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: May 5, 1981
    Inventor: Clarence E. Williams
  • Safety receptacle
    Patent number: 4182459
    Abstract: A fusible link restrains a spring which in turn is connected to a chain or similar flexible retainer member extending between the housing part of the receptacle and the hinged lid part of the receptacle. In the presence of heat the link melts causing the spring to exert a pull upon the chain which pulls the lid part of the receptacle closed.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: January 8, 1980
    Inventor: Clarence E. Williams
  • Door having improved closing and latching systems
    Patent number: 4146994
    Abstract: A pair of doors hinged to a frame and including a self-locking three-point latch and coordinated closing system.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: April 3, 1979
    Inventor: Clarence E. Williams