Patents by Inventor Werner ZAHLHAAS

Werner ZAHLHAAS 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).

  • Method for determining the degree of wear of a valve, and apparatus for carrying out said method
    Patent number: 11378203
    Abstract: A method for determining the degree of wear of a valve, the degree of wear of the valve being dependent on the degree of wear of an operating element that is made of an expandable material and performs a mechanical movement each time the temperature changes, the change in temperature resulting in wear, the operating element made of an expandable material being mechanically connected to a piston; the movements of the operating element (3) made of an expandable material are calculated by initially sensing the change in temperature on the operating element (3), whereupon the changes in temperature are recalculated as movements on the basis of the temperature/expansion curve applicable to the operating element (3) made of an expandable material.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: July 5, 2022
    Inventor: Werner Zahlhaas
  • METHOD FOR DETERMINING THE DEGREE OF WEAR OF A VALVE, AND APPARATUS FOR CARRYING OUT SAID METHOD
    Publication number: 20190195390
    Abstract: Disclosed is a method for determining the degree of wear of a valve, the degree of wear of the valve being dependent on the degree of wear of an operating element that is made of an expandable material and performs a mechanical movement each time the temperature changes, the change in temperature resulting in wear, the operating element made of an expandable material being mechanically connected to a piston; the movements of the operating element (3) made of an expandable material are calculated by initially sensing the change in temperature on the operating element (3), whereupon the changes in temperature are recalculated as movements on the basis of the temperature/expansion curve applicable to the operating element (3) made of an expandable material.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventor: Werner Zahlhaas
  • METHOD FOR DETERMINING THE DEGREE OF WEAR OF A VALVE, AND APPARATUS FOR CARRYING OUT SAID METHOD
    Publication number: 20170284561
    Abstract: Disclosed is a method for determining the degree of wear of a valve, the degree of wear of the valve being dependent on the degree of wear of an operating element that is made of an expandable material and performs a mechanical movement each time the temperature changes, the change in temperature resulting in wear, the operating element made of an expandable material being mechanically connected to a piston; the movements of the operating element (3) made of an expandable material are calculated by initially sensing the change in temperature on the operating element (3), whereupon the changes in temperature are recalculated as movements on the basis of the temperature/expansion curve applicable to the operating element (3) made of an expandable material.
    Type: Application
    Filed: September 1, 2015
    Publication date: October 5, 2017
    Inventors: Werner ZAHLHAAS, Markus KRAPFL, Stefan THIEL