Patents by Inventor William W. Kelly

William W. Kelly 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).

  • Publication number: 20190167887
    Abstract: A hemodialysis system configured to purge air from a blood circuit comprises a dialyzer; a dialysis fluid circuit operable with the dialyzer via dialysis fluid inlet and outlet lines, the dialysis fluid circuit including a fresh dialysis fluid pump, and a used dialysis fluid pump; the blood circuit operable with the dialyzer and including an arterial line, a venous line, a blood pump operable with the arterial line upstream of the dialyzer, a physiologically acceptable fluid source in fluid communication with the arterial line upstream of the blood pump, a drip chamber located along the venous line, and a container for accepting air purged from the blood circuit; and an air purging scheme wherein, with the dialysis fluid inlet and outlet lines connected to the dialyzer, the blood pump pumps a fluid through the dialyzer and into the drip chamber, forcing air from the drip chamber into the container.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Patent number: 6899085
    Abstract: A common rail fuel injection system for a motor vehicle, comprising a distributor rail (16) fluidly connected to at least one fuel injector (18), an accumulator chamber (14) fluidly connected to the distributor rail, a high pressure fuel pump (10) that has an inlet for receiving fuel from a low pressure feed system (20, 22, 24) and an outlet chamber (12) for proving fuel at high pressure to the accumulator (14). A recirculation valve (52) is fluidly connected to the pump outlet chamber (12), the accumulator (14), and the low pressure feed system, wherein at a first position the recirculation valve fluidly aligns the outlet chamber (12) with the accumulator (14) and in a second position aligns the outlet chamber with the low pressure system for recirculation of fuel through the high pressure pump at the low pressure.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: May 31, 2005
    Assignee: Stanadyne Corporation
    Inventor: William W. Kelly
  • Publication number: 20040123841
    Abstract: A common rail fuel injection system for a motor vehicle, comprising a distributor rail (16) fluidly connected to at least one fuel injector (18), an accumulator chamber (14) fluidly connected to the distributor rail, a high pr3essure fuel pump (10) that has an inlet for receiving fuel from allow pressure feed system (20, 22, 24) and an outlet chamger (12) for proving fuel at high pressure to the accumulator (14). A recirculation valve (52) is fluidly connected to the pump outlet chamber (12), the accumulator (14), and the low pressure feed system, wherein at a first position the recirculation valve fluidly aligns the outlet chamber (12) with the accumulator (14) and in a second position aligns the outlet chamber with the low pressure system for recirculation of fuel through the high pressure pump at the low pressure.
    Type: Application
    Filed: July 15, 2003
    Publication date: July 1, 2004
    Inventor: William W. Kelly
  • Patent number: 6024298
    Abstract: A fuel injector to inject fuel into a cylinder of an internal combustion engine when installed therein. The injector has an injector body which defines an interior cavity, a movable needle valve which cooperates with the interior body to define a variable-volume control chamber and a control valve for selectively blocking and permitting fluid communication among the control chamber, the high-pressure fuel supply, and the low-pressure fuel return. Such selectively controlled variation of the volume of the control chamber varies the position of the needle valve to selectively permit or prevent fluid communication between the high-pressure fuel supply and the engine cylinder. The control valve for selectively permitting fluid communication is preferably force balanced by relatively low forces acting thereon.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: February 15, 2000
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly
  • Patent number: 5947382
    Abstract: A fuel injector to inject fuel into a cylinder of an internal combustion engine when installed therein, the engine having a high-pressure fuel supply which delivers fuel to the injector and a low-pressure fuel return which removes fuel from the injector. The injector has an injector body which defines an interior cavity, a movable needle valve which cooperates with the interior body to define a variable-volume control chamber and another value for selectively permitting fluid communication between the control chamber and (1) the high-pressure fuel supply; and (2) the low pressure fuel return. Such fluid communication permits controlled variation of the volume of the control chamber which, in turn, varies the position of the needle valve to selectively permit or prevent fluid communication between the high-pressure fuel supply and the engine cylinder. The valve for selectively permitting fluid communication is preferably force balanced by relatively low forces acting thereon.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: September 7, 1999
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly
  • Patent number: 5890653
    Abstract: A fuel injector employs at least one sensing device for sensing changes in the thermodynamic properties of the fuel within the injector to thereby monitor injector performance during usage. In some embodiments, advantageously placed temperature sensors are employed to detect the release of thermal energy which occurs when the potential energy of a fuel at high-pressure is suddenly converted into kinetic energy by lowering the pressure of the fuel. Other embodiments of the instant invention employ advantageously placed pressure sensors to detect sudden changes in fuel pressure which occur during the course of the injection cycle. Whereas the sensing devices of the instant invention can be placed at a variety of locations, they are preferably placed to detect changes in the thermodynamic properties of the fuel flowing within an injector where such changes are appreciably large during injector usage.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: April 6, 1999
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly
  • Patent number: 5215060
    Abstract: A rotary distributor fuel injection pump having a fuel system for circulating fuel continuously from a fuel supply pump via an end chamber at one end of the distributor rotor and an annular fuel chamber surrounding the distributor rotor to a return line and a pressure regulator in the return line for regulating the upstream pressure and continuously returning excess fuel to the supply pump. An electrical control valve is selectively opened during the pumping strokes to spill fuel into the end chamber and terminate the fuel injection event. An auxiliary passage in the rotor resets the pressure in the distributor outlets to approximately the same initial pressure. In an air purging mode of operation, the control valve is held closed until after the distributor port moves out of registry with each distributor outlet to prevent back flow to the end chamber.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: June 1, 1993
    Assignee: Stanadyne Automotive Corp.
    Inventors: Kenneth H. Klopfer, William W. Kelly
  • Patent number: 5103792
    Abstract: An electrical control unit having a microprocessor and a network of counters for governing the electrical operation of a fuel control valve of a fuel injection pump. Four subtraction counters are preset by the processor; one is used as a time counter indexed by time pulses and three are used as pump angle counters indexed by pump clock pulses generated for each predetermined increment of pump rotation. Two of the pump angle counters are employed to precisely open and close the valve for regulating the fuel injection timing and quantity--the total quantity in a normal mode of operation and a pilot quantity in a pilot injection mode. In the pilot mode, the third pump angle counter regulates the main injection quantity and the time counter regulates the time delay between the pilot and main injections.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: April 14, 1992
    Assignee: Stanadyne Automotive Corp.
    Inventors: Robert R. Winkler, William W. Kelly
  • Patent number: 5020500
    Abstract: A hole type fuel injector with a nozzle body and needle valve having cooperating inner and outer metering rings providing a metering passage (a) to provide an initial reduced rate of fuel injection during an initial increment of valve lift, (b) to maintain fuel pressure at the valve seat to reduce fuel dribble and cavitation erosion during a corresponding last increment of valve closure and (c) to prevent secondary fuel injection.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: June 4, 1991
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly
  • Patent number: 4987887
    Abstract: One spring and two spring embodiments of a fuel injector having a nozzle body and needle valve with cooperating inner and outer metering rings providing a metering passage which (a) meters fuel at a reduced rate during an initial increment of valve lift, (b) assists in maintaining fuel pressure at the valve seat to reduce fuel dribble and cavitation erosion during a corresponding last increment of valve closure and (c) dampens secondary pressure waves to prevent secondary fuel injection.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: January 29, 1991
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly
  • Patent number: 4884549
    Abstract: An internal combustion engine fuel injection system having a reciprocating charge pump and a bidirectional flow, solenoid valve for precisely regulating the fuel injection timing by precisely regulating the intake charge quantity of fuel supplied to the charge pump during each intake stroke and for precisely regulating the fuel injection quantity by precisely regulating the spill termination of the high pressure delivery of fuel during each pumping stroke. An electrical controller having a data processor timely energizes and deenergizes the solenoid valve and adjusts the charge pump stroke timing, if adjustable, for adjusting the fuel injection timing and quantity. A start-of-pumping sensor or charge pump stroke timing sensor is used to provide a closed loop feedback, or in the alternative where the charge pump stroke is not adjustable, a calibrated input is used in lieu of a charge pump stroke timing sensor.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: December 5, 1989
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly
  • Patent number: 4811715
    Abstract: An electronic unit injector employs an expandable chamber which expands as pressure in the injector increases between a pair of threshold pressures. The expansion of the chamber results in a two-phase rate of injection of the injector whereby the initial injection rate is significantly lower than the second injection rate. In one embodiment, the expandable chamber is formed by a pin which is displaceable in a cap mounted to the injector body. The pin bottoms against the cap to define the phase transition.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: March 14, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Ilija Djordjevic, William W. Kelly, Richard E. Vanderpoel
  • Patent number: 4757795
    Abstract: An internal combustion engine fuel injection system having a reciprocating charge pump and a bidirectional flow, solenoid valve for precisely regulating the fuel injection timing by precisely reglating the intake charge quantity of fuel supplied to the charge pump during each intake stroke and for precisely regulating the fuel injection quantity by precisely regulating the spill termination of the high pressure delivery of fuel during each pumping stroke. An electrical controller having a data processor timely energizes and deenergizes the solenoid valve and adjusts the charge pump stroke timing, if adjustable, for adjusting the fuel injection timing and quantity. A start-of-pumping sensor or charge pump stroke timing sensor is used to provide a closed loop feedback, or in the alternative where the charge pump stroke is not adjustable, a calibrated input is used in lieu of a charge pump stroke timing sensor.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: July 19, 1988
    Assignee: Stanadyne, Inc.
    Inventor: William W. Kelly
  • Patent number: 4605166
    Abstract: An accumulator injector employs a shuttle piston assembly to produce a pilot injection prior to the primary fuel injection of the injector and to control the injection rate. The shuttle piston communicates with the control chamber and the accumulator chamber of the injector to provide a controllable pressure bleed means for controlling the valve needle lift of the injector.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: August 12, 1986
    Assignee: Stanadyne, Inc.
    Inventor: William W. Kelly
  • Patent number: 4508134
    Abstract: Engine exhaust gas is recirculated by a fluid pressure actuated valve receiving a control signal from a controller which receives and modulates engine induction vacuum to provide a primary source and receives a carburetor throttle-blade controlled suction as a secondary source and compares the primary and secondary sources and discriminates therebetween to provide the lesser as the outward control signal.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: April 2, 1985
    Assignee: Eaton Corporation
    Inventors: William W. Kelly, Cyril E. Bradshaw
  • Patent number: 4494510
    Abstract: Engine exhaust gas is recirculated by a fluid pressure actuated valve receiving a control signal from a controller which receives and modulates engine induction vacuum to provide a primary source and receives a carburetor throttle-blade controlled suction as a secondary source and compares the primary and secondary sources and discriminates therebetween to provide the lesser as the outward control signal.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: January 22, 1985
    Assignee: Eaton Corporation
    Inventors: William W. Kelly, Cyril E. Bradshaw
  • Patent number: RE34999
    Abstract: A hole type fuel injector with a nozzle body and needle valve having cooperating inner and outer metering rings providing a metering passage (a) to provide an initial reduced rate of fuel injection during an initial increment of valve lift, (b) to maintain fuel pressure at the valve seat to reduce fuel dribble and cavitation erosion during a corresponding last increment of valve closure and (c) to prevent secondary fuel injection.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: July 25, 1995
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly
  • Patent number: RE35101
    Abstract: One spring and two spring embodimenls of a fuel injection having a nozzle body and needle valve with cooperating inner and outer metering rings providing a metering passage which (a) meters fuel at a reduced rate during an initial increment of valve lift, (b) assists in maintaining fuel pressure at the valve seat to reduce fuel dribble and cavitation erosion during a corresponding last increment or valve closure and (c) dampens secondary pressure waves to prevent secondary fuel injection.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: November 28, 1995
    Assignee: Stanadyne Automotive Corp.
    Inventor: William W. Kelly