Patents by Inventor William G. Roller

William G. Roller 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: 4081738
    Abstract: A plural battery control apparatus having a three-position switch for selectively connecting a pair of batteries singly, in parallel or in series to a current load or source via an electrical output connector. Means are also provided for monitoring the voltage condition of the first and second batteries.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: March 28, 1978
    Assignee: G & R Industries, Inc.
    Inventor: William G. Roller
  • Patent number: 3964510
    Abstract: A live well valve apparatus having a valve body forming a ball member compartment and a stab joint conduit with flowthrough communication therebetween. A ball member is disposed in the ball compartment and positionable in moving clearance and in sealing engagement with a valve seat disposed between the ball member compartment and the stab joint conduit. A wedge means is provided to selectively force the ball member in sealing engagement with the valve seat, the wedge assembly in the preferred embodiment being an actuator bar slidingly supported on the valve body in opposingly aligned bar supporting grooves, the actuator bar having a clearance end and a wedge end.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: June 22, 1976
    Assignee: G & R Industries, Inc.
    Inventor: William G. Roller
  • Patent number: 3954082
    Abstract: A housing and sealing gasket encapsulating an unsealed DC motor for submerged use in water. The motor is held within the housing by means of a sealing composition and a biasing end cap to prevent motor vibrations. The sealing gasket disposed within a bearing cup receives the work shaft of the motor protruding from the housing. A flexible collar of the gasket engages the work shaft and is encircled by a biasing spring to insure effective sealing.
    Type: Grant
    Filed: November 22, 1974
    Date of Patent: May 4, 1976
    Assignee: William G. Roller
    Inventors: William G. Roller, Emery L. West