Patents by Inventor Michael J. Marshik

Michael J. Marshik 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).

  • Membrane and solenoid actuated valve for dispensing
    Patent number: 7296708
    Abstract: The invention replaces mechanical actuation of the valve (22) in lubricant dispense meters (10) to provide a software driven method of controlling the dispense of fluids. The design utilizes either a pressure sensitive membrane switch or a multiple discrete position membrane switch (18) in conjunction with either a multiple discrete stage solenoid actuated valve, a proportional solenoid actuated valve or an on/off solenoid actuated valve (22) to provide operator or programmed control of lubricant dispense frequency and flow rate via the meter's microprocessor.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: November 20, 2007
    Assignee: Graco Minnesota Inc.
    Inventors: Mark A. King, Eugene G. Thury, Gregory W. Parkhurst, Michael J. Marshik
  • Fluid dispensing nozzle
    Patent number: D481102
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: October 21, 2003
    Assignee: Graco Minnesota Inc.
    Inventor: Michael J. Marshik
  • Tank level sensor
    Patent number: D484819
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: January 6, 2004
    Assignee: Graco Minnesota Inc.
    Inventors: Michael J. Marshik, Kenneth J. Krieter