Patents by Inventor Stanley G. Karwoski

Stanley G. Karwoski 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: 11420220
    Abstract: A mixing module includes two inlets, an integrator, and a valve member. The integrator has two chambers each having a near end and a far end, and the valve member is movable between two positions. One of the inlets is connected to the near end of one of the chambers and the other inlet is connected to the near end of the other chamber when the valve is in one position. When the valve is in the other position, one of the inlets is disconnected from the chambers and the near ends of the chambers are connected.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 23, 2022
    Assignee: Graco Minnesota Inc.
    Inventors: John R. Ingebrand, Stanley G. Karwoski
  • Publication number: 20190270101
    Abstract: A mixing module includes two inlets, an integrator, and a valve member. The integrator has two chambers each having a near end and a far end, and the valve member is movable between two positions. One of the inlets is connected to the near end of one of the chambers and the other inlet is connected to the near end of the other chamber when the valve is in one position. When the valve is in the other position, one of the inlets is disconnected from the chambers and the near ends of the chambers are connected.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Inventors: John R. Ingebrand, Stanley G. Karwoski
  • Patent number: 10335810
    Abstract: A mixing module includes two inlets, an integrator, and a valve member. The integrator has two chambers each having a near end and a far end, and the valve member is movable between two positions. One of the inlets is connected to the near end of one of the chambers and the other inlet is connected to the near end of the other chamber when the valve is in one position. When the valve is in the other position, one of the inlets is disconnected from the chambers and the near ends of the chambers are connected.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: July 2, 2019
    Assignee: Graco Minnesota Inc.
    Inventors: John R. Ingebrand, Stanley G. Karwoski
  • Publication number: 20150367360
    Abstract: A mixing module includes two inlets, an integrator, and a valve member. The integrator has two chambers each having a near end and a far end, and the valve member is movable between two positions. One of the inlets is connected to the near end of one of the chambers and the other inlet is connected to the near end of the other chamber when the valve is in one position. When the valve is in the other position, one of the inlets is disconnected from the chambers and the near ends of the chambers are connected.
    Type: Application
    Filed: February 12, 2014
    Publication date: December 24, 2015
    Inventors: John R. Ingebrand, Stanley G. Karwoski
  • Patent number: 6499673
    Abstract: The apparatus is designed to dispense sealants and adhesives onto a workpiece in a robotic or manual application. The apparatus has a motor, a through shaft and a rotating shaft. The rotating shaft is hollow and has an off-center aperture at the end thereof through which extends one end of the through shaft. By rotating the rotating shaft, the end of the through shaft has imparted to it an orbital motion which is capable of providing a swirl type pattern onto the workpiece.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: December 31, 2002
    Assignee: Graco Minnesota Inc.
    Inventors: Arnold W. Braun, Jr., David J. Cliff, David G. Gonska, Masoud Amin-Javaheri, David C. Mandeville, Mark E. Ulrich, Stanley G. Karwoski
  • Patent number: 5289977
    Abstract: An electrostatic spray gun for the application of paints and other coatings has a high voltage power supply having a contact at the front end thereof. A flange on the end of the power supply surrounds the contact and a rubber boot seal snaps over the flange. Located within the rubber boot is a conductive rubber pin which contacts with a conductor located in the barrel of the gun. Utilization of this design minimizes capacitance in the front end of the gun and also virtually eliminates air volume in the area which in turn limits the production of harmful ozone.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: March 1, 1994
    Assignee: Graco Inc.
    Inventors: Robert J. Lind, Lawrence J. Lunzer, Stanley G. Karwoski
  • Patent number: 5285965
    Abstract: A tip guard is provided to protect a user of an air-assisted airless paint spray gun from injury. The shape of the tip guard is designed such that use of the tip guard is not detrimental to the fluid spray pattern emitted from the tip of the air-assisted airless paint spray gun. Use of the tip guard does not affect the size or shape of the fluid spray pattern, nor cause accumulation of paint upon the tip guard. The tip guard has a base having a shoulder and an aperture adapted for engagement to the air cap and tip of an air-assisted airless paint spray gun. The base further has a pair of transition portions extending axially forward from said aperture, where notches formed in the transition portions are adapted to engage the forwardly-extending horns of the air cap of an air-assisted airless paint spray gun. Each transition portion further has a pair of vanes extending forwardly and radially outwardly from the transition portion, where each of said pair of vanes is then joined by a crossbar.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: February 15, 1994
    Assignee: Graco Inc.
    Inventors: Tera D. McCutcheon, Stanley G. Karwoski, Timothy L. Mullen
  • Patent number: 4978075
    Abstract: An electrostatic spray gun having an internal alternator-turbine power supply is provided with an air circuit which divides the air passages to the front end of the gun on one hand and to the power supply in the other hand at the trigger valve to prevent paint or solvent leakage into the power supply. The power supply is completely encapsulated or potted such that the only parts of the power supply extending through the containment are heat sinks, electrical connectors and a voltage indicator. Lastly, as C-clip is provided to attach the turbine alternator to the rest of the power supply which utilizes an interior groove on the alternator turbine and an exterior groove on the main body of the power supply.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: December 18, 1990
    Assignee: Graco Inc.
    Inventors: Robert J. Lind, Stanley G. Karwoski
  • Patent number: 4679734
    Abstract: A spray gun is designed for mounting on the end of a robot arm. The construction of the gun is provided such that nearly all of the main components with the exception of the spray head itself are located in a main body to which is mounted a pivotal spray head assembly which may pivot approximately 90.degree. to either side of the normal straight-ahead position. The power supply and power generating units are located in the main body. The electrostatic power supply connection to the spray head enters the spray head shaft on the opposite side from the fluid supply entry. The fluid control valve may be located in the spray head shaft.
    Type: Grant
    Filed: October 30, 1985
    Date of Patent: July 14, 1987
    Assignee: Graco Inc.
    Inventors: Gordon V. Mommsen, Norman N. Fender, Stanley G. Karwoski, William C. Scherer, Robert J. Lind
  • Patent number: D457599
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: May 21, 2002
    Assignee: Graco Minnesota Inc.
    Inventors: Stanley G. Karwoski, Richard D. Anderson, Mark E. Ulrich, Roger E. Wiersma, Mark C. Richter
  • Patent number: D313064
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: December 18, 1990
    Assignee: Graco Inc.
    Inventors: Robert J. Lind, Stanley G. Karwoski, Lawrence J. Lunzer, Alexander Bally
  • Patent number: D350387
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: September 6, 1994
    Assignee: Graco, Inc.
    Inventors: Ann C. Feitel, Stanley G. Karwoski, Robert J. Lind, Thomas M. Grimm