Patents by Inventor Anke Wiedermann

Anke Wiedermann 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).

  • Viscous material pump with adjustable limitation of the delivery pressure
    Patent number: 11092143
    Abstract: A thick matter pump includes a hydraulically-driven two-cylinder piston-pump configured to generate a thick matter delivery pressure. The thick matter pump also includes a hydraulic pump configured to apply hydraulic fluid to the two-cylinder piston-pump via a drive line. The hydraulic pump includes a pressure regulator that is adjustable to a target value of pressure of the hydraulic fluid for limiting the thick matter delivery pressure, and the thick matter delivery pressure is adjustably limited. The pressure of the hydraulic fluid is limited in the drive line, via an adjustable pressure-limiting valve, to an adjustable maximum pressure. The target pressure of the pressure regulator and the maximum pressure of the hydraulic fluid are adjustable through a joint adjusting element.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: August 17, 2021
    Assignee: SCHWING GMBH
    Inventors: Andreas Lehmann, Anke Wiedermann
  • VISCOUS MATERIAL PUMP WITH ADJUSTABLE LIMITATION OF THE DELIVERY PRESSURE
    Publication number: 20190309737
    Abstract: A thick matter pump includes a hydraulically-driven two-cylinder piston-pump configured to generate a thick matter delivery pressure. The thick matter pump also includes a hydraulic pump configured to apply hydraulic fluid to the two-cylinder piston-pump via a drive line. The hydraulic pump includes a pressure regulator that is adjustable to a target value of pressure of the hydraulic fluid for limiting the thick matter delivery pressure, and the thick matter delivery pressure is adjustably limited. The pressure of the hydraulic fluid is limited in the drive line, via an adjustable pressure-limiting valve, to an adjustable maximum pressure. The target pressure of the pressure regulator and the maximum pressure of the hydraulic fluid are adjustable through a joint adjusting element.
    Type: Application
    Filed: November 21, 2017
    Publication date: October 10, 2019
    Applicant: Schwing GmbH
    Inventors: Andreas Lehmann, Anke Wiedermann