Patents by Inventor Horst Zientek

Horst Zientek 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).

  • Quick release valve for sprinkler head
    Patent number: 4993496
    Abstract: The invention relates to a formation of a release element, where the upper end and the lower end of a cylindrical or conical glass tube are closed by means of inwardly directed plugs.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: February 19, 1991
    Assignee: Total Walther Feuerschutz GmbH
    Inventors: Armin Riedle, Horst Zientek, Nikolaus Grainer, Heinz Heider
  • Quick release valve for sprinkler head
    Patent number: 4898246
    Abstract: The invention relates to a release element for sprinkler systems comprising a cylindrical tube, where the ends of the cylindrical tube are respectively hermetically sealed by melting to a plug, where provisions are disposed jointly with the closure piece and counter piece of the sprinkler, which only exert pressure forces onto the center cylinder-shaped tube portion of the release element.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: February 6, 1990
    Assignee: Total Walther Feuerschutz GmbH
    Inventors: Armin Riedle, Horst Zientek