Patents by Inventor Steven Mesner

Steven Mesner 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).

  • Pump flow restricting device
    Patent number: 8851444
    Abstract: A restrictor mechanism is provided in a pilot operated solenoid valve that restricts the pilot flow to the actuating piston of the valve if the pressure differences within the valve are great. This reduces the actuating forces allowing the valve to open or close softly. As the pressures within the valve start to balance, the restrictor device opens, allowing full pilot flow to hold the valve in position.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: October 7, 2014
    Assignee: Parker-Hannifin Corporation
    Inventor: Steven Mesner
  • Combination solenoid check valve
    Patent number: 8528590
    Abstract: A valve (10) is provided that combines the features of a solenoid valve and a check valve into a singel combination solenoid check valve. The valve utilizes a first check valve (58) to allow fluid to flow from the outlet passageway (28) of the valve to a chamber (36) above the piston (40) to ensure that the valve remains closed when the outlet pressure in the valve is greater than the inlet pressure. The valve also utilizes a second check valve (42) that closes a bleed aperture through the piston when the pressure in the chamber above the piston is greater than the inlet pressure.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: September 10, 2013
    Assignee: Parker-Hannifin Corporation
    Inventor: Steven Mesner
  • PUMP FLOW RESTRICTING DEVICE
    Publication number: 20120055566
    Abstract: A restrictor mechanism is provided in a pilot operated solenoid valve that restricts the pilot flow to the actuating piston of the valve if the pressure differences within the valve are great. This reduces the actuating forces allowing the valve to open or close softly. As the pressures within the valve start to balance, the restrictor device opens, allowing full pilot flow to hold the valve in position.
    Type: Application
    Filed: February 23, 2010
    Publication date: March 8, 2012
    Inventor: Steven Mesner
  • COMBINATION SOLENOID CHECK VALVE
    Publication number: 20110309278
    Abstract: A valve (10) is provided that combines the features of a solenoid valve and a check valve into a singel combination solenoid check valve. The valve utilizes a first check valve (58) to allow fluid to flow from the outlet passageway (28) of the valve to a chamber (36) above the piston (40) to ensure that the valve remains closed when the outlet pressure in the valve is greater than the inlet pressure. The valve also utilizes a second check valve (42) that closes a bleed aperture through the piston when the pressure in the chamber above the piston is greater than the inlet pressure.
    Type: Application
    Filed: February 9, 2010
    Publication date: December 22, 2011
    Inventor: Steven Mesner