Patents by Inventor David J. Thompson

David J. Thompson 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: 7114664
    Abstract: A texture sprayer is provided with a hopper feeding an air operated double diaphragm pump. The sprayer is provided with a removable power pack which includes a gas engine, an air pump, an air unloading regulator, an air cooler, an air QD and a mounting base with handles. The power pack may be removed from the sprayer cart and located outside so that the sprayer can be used quietly and safely indoors.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: October 3, 2006
    Assignee: Graco Minnesota Inc.
    Inventors: Robert J. Gundersen, James C. Schroeder, David J. Thompson
  • Patent number: 6752015
    Abstract: The present invention involves a device for detecting a condition of a flowing fluid within a vehicle having reduced sulfur ingress. The device includes a base plate having a receiving surface and a circumferential edge and a printed circuit board disposed on the receiving surface of the base plate. The device further includes a housing having peripheral side walls attaching to the receiving surface adjacent the circumferential edge to define a peripheral interface enclosing the printed circuit board within the housing. The device further includes an adhesive material disposed at the interface to adhere the housing to the base plate. The adhesive material has a predetermined thermal expansion coefficient and a predetermined elastic modulus to reduce fluid ingress through the interface and to accommodate thermal expansions of the base plate and the housing.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: June 22, 2004
    Assignee: Visteon Global Technologies, Inc.
    Inventors: David J. Thompson, Robert E. Belke, Jr., Edward P. McLeskey
  • Publication number: 20040055376
    Abstract: The present invention involves a device for detecting a condition of a flowing fluid within a vehicle having reduced sulfur ingress. The device includes a base plate having a receiving surface and a circumferential edge and a printed circuit board disposed on the receiving surface of the base plate. The device further includes a housing having peripheral side walls attaching to the receiving surface adjacent the circumferential edge to define a peripheral interface enclosing the printed circuit board within the housing. The device further includes an adhesive material disposed at the interface to adhere the housing to the base plate. The adhesive material has a predetermined thermal expansion coefficient and a predetermined elastic modulus to reduce fluid ingress through the interface and to accommodate thermal expansions of the base plate and the housing.
    Type: Application
    Filed: September 24, 2002
    Publication date: March 25, 2004
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: David J. Thompson, Robert E. Belke, Edward P. McLeskey
  • Patent number: 6711332
    Abstract: The present invention relates to a dispersion compensating optical fiber (“DC fiber”) having a segmented core and having a negative total dispersion and negative dispersion slope in the C-band. The index profile of the fiber is selected to provide an optical properties suitable for a high performance communication system operating in the C-band wavelength band, i.e., between about 1525 nm to 1565 nm. The DC fiber according to the invention exhibits dispersion slope at 1549 nm more negative than −3.4 ps/nM2-km and has a negative &Dgr;2% that is more negative than −0.4%. Preferably, the DC fiber has a total dispersion more negative than −125 ps/nm2-km. The DC fiber may be optically connected to a Non-Zero Dispersion Shifted Fiber (NZDSF) in the system to compensate for dispersion thereof. Optionally, the transmission system may include a positive dispersion, positive slope trim fiber.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: March 23, 2004
    Assignee: Corning Incorporated
    Inventors: Peter G. Hebgen, David J. Thompson
  • Publication number: 20040045430
    Abstract: The ramped valve yoke is utilized in a hydraulic reciprocating motor. The uniqueness of this valve yoke is the profile of the surface on which a ball-detent mechanism rides. The profile ensures the ball-detent will always snap into a position on either end of the profile and prevents the ball-detent from stopping on the profile. This action ensures the switching valve of a hydraulic reciprocating motor will always be fully engaged in either one of two positions and will never stop half way between positions.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 11, 2004
    Inventors: Michael D. Vangstad, David J. Thompson, David L. Breeser
  • Patent number: 6629650
    Abstract: An engine fuel injector includes an internal fuel passage in which pressure waves can develop upon opening and closing of an injection valve. A fuel pressure damper is associated with the fuel passage and operates to vary the internal volume of the fuel passage in a manner to reduce the amplitude of pressure variations and pressure waves in the fuel passage. A variety of fuel pressure damper embodiments are disclosed.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: October 7, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Steven M. Curran, Ahmet T. Becene, Charles Wilson Braun, Kern E. Haynes, Leonard Lee Shebert, Jr., Christopher A. Tucker, David J. Thompson, Jr., Brent Jack Wahba, Michael Raymond Raney, James M. Banna
  • Publication number: 20030106590
    Abstract: A spring is provided for a paint pump inlet check valve. The spring is a simple stamped, laser cut or coiled cantilever or flat spiral extension spring with a small bumper. The design of the spring serves to enhance priming of the pump yet prevents the spring from packing out with solids in the paint or other material being pumped.
    Type: Application
    Filed: September 25, 2001
    Publication date: June 12, 2003
    Inventors: David J. Thompson, Benjamin J. Hitter, Jerry D. Horning
  • Publication number: 20030091309
    Abstract: The present invention relates to a dispersion compensating optical fiber (“DC fiber”) having a segmented core and having a negative total dispersion and negative dispersion slope in the C-band. The index profile of the fiber is selected to provide an optical properties suitable for a high performance communication system operating in the C-band wavelength band, i.e., between about 1525 nm to 1565 nm. The DC fiber according to the invention exhibits dispersion slope at 1549 nm more negative than −3.4 ps/nm2-km and has a negative &Dgr;2% that is more negative than −0.4%. Preferably, the DC fiber has a total dispersion more negative than −125 ps/nm2-km. The DC fiber may be optically connected to a Non-Zero Dispersion Shifted Fiber (NZDSF) in the system to compensate for dispersion thereof. Optionally, the transmission system may include a positive dispersion, positive slope trim fiber.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 15, 2003
    Inventors: Peter G. Hebgen, David J. Thompson
  • Patent number: 6520190
    Abstract: A system for flushing an airless sprayer essentially reverses operation such that the spray gun is immersed in a container of water or other solvent and that fluid is pulled through the pump and flushed through the normal inlet tube. The preferred embodiment attaches a fluid bar to the front of the spray gun to redirect the fluid for flushing. This reverse flushing action allows quicker flushing using less fluid.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: February 18, 2003
    Assignee: Graco Minnesota Inc.
    Inventors: David J. Thompson, Diane L. Olson, Steven E. Durkee
  • Publication number: 20030010847
    Abstract: An engine fuel injector includes an internal fuel passage in which pressure waves can develop upon opening and closing of an injection valve. A fuel pressure damper is associated with the fuel passage and operates to vary the internal volume of the fuel passage in a manner to reduce the amplitude of pressure variations and pressure waves in the fuel passage. A variety of fuel pressure damper embodiments are disclosed.
    Type: Application
    Filed: July 10, 2001
    Publication date: January 16, 2003
    Inventors: Steven M. Curran, Ahmet T. Becene, Charles Wilson Braun, Kern E. Haynes, Leonard Lee Shebert, Christopher A. Tucker, David J. Thompson, Brent Jack Wahba, Michael Raymond Raney, James M. Banna
  • Publication number: 20020081208
    Abstract: A process for treating rods and cylinders for use in reciprocating piston pumps is provided which yields a substantial increase in wear over the chrome coatings of the prior art. A base material of stainless steel 17-4ph is heat treated in the range generally from H-900 to H-1150. Once the material is pretempered, an ion nitriding process is applied. With this process, the hardness can be increased from the standard 17-4 hardness of RC-44 max to a desired hardness of RC-65 to 75.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 27, 2002
    Inventors: David J. Thompson, John P. Horan, James A. Klaverkamp, Jerry D. Horning
  • Patent number: 6369682
    Abstract: A bobbin has a simple and precise means for locating and securing terminals onto the bobbin for use in a fuel injector. The bobbin has open terminal posts and flange holding notches for locating the terminals on the bobbin, and a flange locking notch for securing the terminals within the framework of the bobbin after connecting a wire and rotating.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: April 9, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: David J. Thompson, Jr., Jack L. Lantz
  • Publication number: 20010045471
    Abstract: A system for flushing an airless sprayer essentially reverses operation such that the spray gun is immersed in a container of water or other solvent and that fluid is pulled through the pump and flushed through the normal inlet tube. The preferred embodiment attaches a fluid bar to the front of the spray gun to redirect the fluid for flushing. This reverse flushing action allows quicker flushing using less fluid.
    Type: Application
    Filed: February 16, 2001
    Publication date: November 29, 2001
    Inventors: David J. Thompson, Diane L. Olson
  • Patent number: 6212998
    Abstract: A design for a packing assembly for a reciprocating piston pump is shown which allows for tighter tolerancing and increased packing life.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: April 10, 2001
    Assignee: Graco Minnesota Inc.
    Inventors: David J. Thompson, Thomas D. Lindblom
  • Patent number: 6212999
    Abstract: A reciprocating piston pump is provided with an automatic throat positive packing torque clip thereby providing consistent and extended pump life.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: April 10, 2001
    Assignee: Graco Minnesota Inc.
    Inventor: David J. Thompson
  • Patent number: 6183225
    Abstract: A reciprocating piston pump is provided with angled flow ports to provide enhanced flow and reduced wear characteristics.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: February 6, 2001
    Assignee: Graco Minnesota Inc.
    Inventor: David J. Thompson
  • Patent number: 5536016
    Abstract: A progressive system for a match number game. An ante coin acceptor is located near each played card on each player's station. A progressive coin acceptor is also located on each player station. A player places an ante bet or a progressive bet by placing coins in the ante and progressive coin acceptors. A controller controls the operation of the coin acceptors.The operator of the game causes the ante and progressive controllers connected to all ante and progressive acceptors to drop all sensed coins into a drop bucket, to activate verification light at each acceptor that the coin has been received and to lockout the coin acceptor to prevent future insertion of coins. The game is played by announcing randomly selective numbers from 1 to 30. At the beginning of the game, the first three randomly selected numbers called, if those three match on a given card and if the player has placed a progressive bet, the player wins the progressive jackpot.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: July 16, 1996
    Assignee: Mikohn Gaming Corporation
    Inventor: David J. Thompson
  • Patent number: D501241
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: January 25, 2005
    Assignee: Graco Minnesota Inc.
    Inventors: Robert J. Gundersen, Timothy J. Kesti, David J. Thompson, James C. Schroeder
  • Patent number: D502532
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: March 1, 2005
    Assignee: Graco Minnesota Inc.
    Inventors: James C. Schroeder, Robert J. Gundersen, David J. Thompson
  • Patent number: D526045
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: August 1, 2006
    Assignee: Graco Minnesota Inc.
    Inventors: Robert J. Gundersen, Timothy J. Kesti, David J. Thompson, James C. Schroeder