Patents Represented by Attorney, Agent or Law Firm Douglas B. Farrow
  • Plural component spray gun for fast setting materials
    Patent number: 7694893
    Abstract: A plural component spray gun (1) is designed for spraying quick setting materials such as foams, polyurea and the like. Towards this end, the gun (1) is designed so as to be easily serviceable with a minimum of tools. For example, the side seal cartridges (18) and (20) may be installed and removed without tools by removing the retaining ring (9) and then extracting them from the fluid housing (11). Those cartridges (18) and (20) are easily disassembled and cleaned. Similarly, the fluid housing (11) may be removed from the handle/body (1) by unscrewing the lock ring (7) by hand.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: April 13, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: Douglas P. Zittel, Michael J. Sebion, Richard D. Anderson, Peter L. Linder, Christopher J. Pellin, Mark T. Weinberger, Mark C. Richler
  • Line striper
    Patent number: 7673815
    Abstract: A line striper (10) is provided with a relatively small engine (16) operating a reciprocating piston pump (20) and having a centrifugal clutch (18) which actuates when a predetermined engine speed has been reached. A pressure bypass device (22) which opens at either a fixed or adjustable pressure is provided to bleed off excess pressure and maintain a consistent spraying pressure. A double acting trigger (30) is provided for the operator to actuate the spray gun (40) and raise the engine speed simultaneously.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 9, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: James C. Schroeder, Eric J. Finstad, Neil A. Taylor, Robert J. Gundersen
  • Spray gun mount for line striper
    Patent number: 7654771
    Abstract: A spray gun mounting tube (116) in a walk behind gas powered line striper (110) is clamped to only one side (112) of the striper frame. The mass of the spray gun (122) and gun mounting bracket (120) allows the gun (122) to hold a steady position.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: February 2, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: James C. Schroeder, Robert J. Gundersen
  • Spray applicator
    Patent number: D588231
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: March 10, 2009
    Inventors: Christopher J. Pellin, Douglas S. Ryder, Joseph E. Tix, Jeffrey N. Velgersdyk, Mark T. Weinberger
  • Reciprocating air motor
    Patent number: D589878
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: April 7, 2009
    Assignee: Graco Minnesota Inc.
    Inventors: Mark L. Bauck, John C. Holman, Wade D. Palashewski, Mark T. Weinberger
  • Display module
    Patent number: D590122
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: April 7, 2009
    Assignee: Graco Minnesota Inc.
    Inventors: Derek R. Shaw, John C. Holman
  • Control module
    Patent number: D593962
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: June 9, 2009
    Assignee: Graco Minnesota Inc.
    Inventors: Daniel P. Ross, Greg T. Mrozek
  • Lubrication dispense valve
    Patent number: D594490
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: June 16, 2009
    Assignee: Graco Minnesota Inc.
    Inventor: David L. Breeser
  • Paint sprayer
    Patent number: D596706
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: July 21, 2009
    Assignee: Graco Minnesota Inc.
    Inventors: Robert J. Gundersen, Albert W. Lubenow, Dale C. Pemberton
  • Airless paint sprayer
    Patent number: D596707
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: July 21, 2009
    Assignee: Graco Minnesota Inc.
    Inventors: Barry W. Mattson, Bradley H. Hines, Jason P. Iverson, Brian M. Mulgrew
  • Airless paint sprayer
    Patent number: D597173
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: July 28, 2009
    Assignee: Graco Minnesota Inc.
    Inventors: Brian M. Mulgrew, Andrew J. Kopel, Jason P. Iverson, Bradley H. Hines
  • Paint spray gun
    Patent number: D604393
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 17, 2009
    Assignee: Graco Minnesota Inc.
    Inventors: Daniel R. Johnson, Pamela J. Muetzel, Diane L. Olson, Katherine J. Grathwohl
  • Airless paint sprayer
    Patent number: D608414
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: January 19, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: August F. Legatt, Andrew J. Kopel, Jason P. Iverson, Paul G. Barney, Bradley H. Hines
  • Texture sprayer
    Patent number: D616064
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: May 18, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: Barry W. Mattson, William M. Blenkush, David M. Larsen, Chad R. Taszarek, Glen W. Davidson, Eric J. Finstad, Thomas E. Kariniemi, James C. Schroeder
  • Paint sprayer
    Patent number: D616065
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: May 18, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: Robert J. Gundersen, Albert W. Lubenow, Dale C. Pemberton
  • Plural-component mechanical purge applicator
    Patent number: D619439
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: July 13, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: Michael A. Cryer, John S. Lihwa, Charles E. Moser, Heath I. McCartney
  • Thermal line striper
    Patent number: D619625
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: July 13, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: James C. Schroeder, Roland M. Bedard, Steven H. Fredrickson, Thomas L. Triplett
  • Fiberglass cutting apparatus
    Patent number: D619629
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: July 13, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: Steven R. Sinders, Jonathan R. McMichael, Corey Dean Johnson, James H Rohrer, Ronald W. Mangus
  • Airless spray tip guard
    Patent number: D625775
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: October 19, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: Daniel R. Johnson, Diane L. Olson, Katherine J Grathwohl
  • Heater board enclosure
    Patent number: D627316
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: November 16, 2010
    Assignee: Graco Minnesota Inc.
    Inventors: Matthew R. Theisen, Mark J. Brudevold