Patents by Inventor Walter Steiler

Walter Steiler 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).

  • Preselection valve, hydraulic valve assembly and hydraulic control device
    Patent number: 11815918
    Abstract: A preselection valve is for a hydraulic valve assembly with a switching element, a pressure input line, a first pressure output line and a first load pressure line with a load pressure inlet and output. The switching element is switchable from neutral to a first switching position. The pressure input line is connected to the first pressure output line in the first position. The preselection valve has a second and third load pressure line and a load pressure increasing device. The second load pressure line branches off the pressure input line upstream of the switching element. The load pressure increasing device is connected to the third load pressure line, which connects the pressure increasing device to the first load pressure line. The second load pressure line is connected to the pressure increasing device in the first switching position and the second load pressure line is blocked in the neutral position.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: November 14, 2023
    Assignee: HAWE Hydraulik SE
    Inventors: Thomas Wechsel, Walter Steiler, Martin Heusser
  • PRESELECTION VALVE, HYDRAULIC VALVE ASSEMBLY AND HYDRAULIC CONTROL DEVICE
    Publication number: 20220283597
    Abstract: A preselection valve is for a hydraulic valve assembly with a switching element, a pressure input line, a first pressure output line and a first load pressure line with a load pressure inlet and output. The switching element is switchable from neutral to a first switching position. The pressure input line is connected to the first pressure output line in the first position. The preselection valve has a second and third load pressure line and a load pressure increasing device. The second load pressure line branches off the pressure input line upstream of the switching element. The load pressure increasing device is connected to the third load pressure line, which connects the pressure increasing device to the first load pressure line. The second load pressure line is connected to the pressure increasing device in the first switching position and the second load pressure line is blocked in the neutral position.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 8, 2022
    Inventors: Thomas Wechsel, Walter Steiler, Martin Heusser