Patents by Inventor William D. Adam

William D. Adam 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: 4881642
    Abstract: An electrostatic charge dissipator made of extruded sheet material in flat form or thermoformed into a shipping container or the like. The sheet material comprises a relatively thick, high strength, electrically nonconductive substrate and a relatively thin electrically conductive layer fused to one or both faces of the substrate. The layer includes a dispersion of electrically conductive particles, flakes or fibers. The substrate and conductive layer are connected together by an electrical conductor such that the laminate is effectively electrically conductive throughout to thereby carry off accumulated static charges. Various methods are disclosed for integrally fusing the substrate and layer or layers.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: November 21, 1989
    Inventor: William D. Adam
  • Patent number: 4721085
    Abstract: A fuel injection apparatus in which a closed fuel circuit is pressurized, and the amount of fuel injected is determined by varying the area switching on/off time of a solenoid in the injector, thereby allowing variance in the area factor of the equation Q=AV; where Q=flow, A=area, V=velocity. Air intake by the engine is controlled in response to the aspiration conditions of the engine via intake and exhaust signals. The fuel injection apparatus includes a reservoir with a fixed level of fuel, and a low pressure pump which pumps fuel into a circuit containing a pressure relief valve splitting amounts between the reservoir and leaving an amount of fuel approximate to the engine's needs going on the electronic injectors. The basic control of the injector's on/off time is governed by ohmic change of the oscillator input, which is controlled by the conventional accelerator pedal.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: January 26, 1988
    Assignees: William D. Adams, Karen M. Adams
    Inventor: William D. Adams
  • Patent number: 4524744
    Abstract: A fuel injection apparatus in which a closed fuel circuit is pressurized, and the amount of fuel injected is determined by the pressure in the circuit. Air intake by the engine is controlled in response to the amount of fuel injected. The fuel injection apparatus includes a reservoir with a fixed level of fuel, and a high pressure pump pumps fuel from the reservoir and into the fuel circuit. Fixed orifice injection nozzles communicate with the circuit so fuel is varied only by the pressure. Pressure in the circuit is varied by a valve that releases fuel into the reservoir to lower the pressure in the circuit, the valve being controlled by the conventional accelerator pedal. Air to the engine is modulated in response to fuel flow. This is accomplished by varying an air valve in accordance with pressure in the fuel circuit, or by using a constant velocity valve which would vary with engine demand.
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: June 25, 1985
    Inventor: William D. Adams
  • Patent number: 4168447
    Abstract: The scaler includes a transducer and an energizing circuit. The transducer includes a tubular piezoelectric transducer element which is maintained in compressive stress when energized by an axial tension bolt adapted to mount a vibratory work tool. The energizing circuit drives the transducer element at its resonant frequency and maintains resonant frequency within an optimum band width, despite changes in capacitive reactance of the transducer element produced by torque applied thereto as the work tool is pressed against an object. A fluid delivery system delivers fluid to the work tool via the tension bolt to effect scaling.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: September 18, 1979
    Inventors: Ronald L. Bussiere, William D. Adams