Patents by Inventor Vince Ewald

Vince Ewald 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).

  • Electronic load sense control with electronic variable load sense relief, variable working margin, and electronic torque limiting
    Patent number: 9759212
    Abstract: An electrical pressure control load sense system having a pump connected inline to an operator control spool valve and a compensation circuit. The system also has a plurality of sensors, at least one pressure transducer, a micro-processor, a fixed orifice, a proportional pressure relief valve, and a swashplate angle sensor.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: September 12, 2017
    Assignee: Danfoss Power Solutions Inc.
    Inventors: Kevin R. Lingenfelter, Alex Bruns, Christian Daley, Vince Ewald, Danny Wakefield
  • ELECTRONIC LOAD SENSE CONTROL WITH ELECTRONIC VARIABLE LOAD SENSE RELIEF, VARIABLE WORKING MARGIN, AND ELECTRONIC TORQUE LIMITING
    Publication number: 20160195083
    Abstract: An electrical pressure control load sense system having a pump connected inline to an operator control spool valve and a compensation circuit. The system also has a plurality of sensors, at least one pressure transducer, a micro-processor, a fixed orifice, a proportional pressure relief valve, and a swashplate angle sensor.
    Type: Application
    Filed: November 18, 2015
    Publication date: July 7, 2016
    Inventors: Kevin R. Lingenfelter, Alex Bruns, Christian Daley, Vince Ewald, Danny Wakefield
  • SELF-CENTERING SERVO PISTON
    Publication number: 20160017997
    Abstract: A servo piston having an elongated member with a first end and a second end. The second end has a servo piston head disposed within a servo piston bore. The servo piston head has at least two grooves disposed about an outer edge of the servo piston head. At last one sealing ring is received within each groove. The use of rings in at least two grooves reduces side/transversal vibration and the servo bore load. At the same time, the space between the two grooves creates a pressurized oil squeeze film between the servo piston head and servo piston bore, sealed by the rings, which provides both a sealing and damping function at the same time.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 21, 2016
    Inventors: Jaromir Tvaruzek, Vince Ewald, Michael J. Romey, Charlie Dvorak