Patents by Inventor Uwe HELLMUTH

Uwe HELLMUTH 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).

  • Non-return valve, in particular for a refrigeration or heat circuit
    Patent number: 11773993
    Abstract: The invention relates to a non-return valve, in particular for a refrigeration or heat circuit, which valve can be inserted into a connection opening (26, 27, 28, 29) of a connection device (21) or of a pipe (39) and comprises: —a one-part or multi-part housing (42) which comprises at least one main housing (44), a feed opening (48) being provided on the inlet side and a discharge opening (51) being provided on the outlet side of the main housing (44), the feed opening and the discharge opening being interconnected by a flow channel (49); —a guide element (53) which is provided on the main housing (44) and by means of which a valve closing element (61) is guided slidably relative to the main housing (44), the valve closing element (61) being arranged in a starting position (42) by means of an energy accumulator (71) and the valve closing element (61) being slidable toward the discharge opening (51) against an actuating force of the energy accumulator (71) in order to be transferred into a working position (63
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 3, 2023
    Assignee: OTTO EGELHOF GmbH & Co. KG
    Inventors: Eike Willers, Andreas Auweder, Rainer Maurer, Siegfried Roth, Uwe Hellmuth, Bernhard Wagner
  • NON-RETURN VALVE, IN PARTICULAR FOR A REFRIGERATION OR HEAT CIRCUIT
    Publication number: 20210222788
    Abstract: The invention relates to a non-return valve, in particular for a refrigeration or heat circuit, which valve can be inserted into a connection opening (26, 27, 28, 29) of a connection device (21) or of a pipe (39) and comprises:—a one-part or multi-part housing (42) which comprises at least one main housing (44), a feed opening (48) being provided on the inlet side and a discharge opening (51) being provided on the outlet side of the main housing (44), the feed opening and the discharge opening being interconnected by a flow channel (49);—a guide element (53) which is provided on the main housing (44) and by means of which a valve closing element (61) is guided slidably relative to the main housing (44), the valve closing element (61) being arranged in a starting position (42) by means of an energy accumulator (71) and the valve closing element (61) being slidable toward the discharge opening (51) against an actuating force of the energy accumulator (71) in order to be transferred into a working position (63),
    Type: Application
    Filed: May 15, 2019
    Publication date: July 22, 2021
    Inventors: Eike WILLERS, Andreas AUWEDER, Rainer MAURER, Siegfried ROTH, Uwe HELLMUTH, Bernhard WAGNER