Patents by Inventor Friedel Heller

Friedel Heller 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).

  • Double-disk slide valve
    Patent number: 7624754
    Abstract: A double-disk slide valve, the shut-off plates of which are displaceable by means of an actuator rod and which is provided with a bridging pipe having two sealing rings that are in operative engagement with corresponding housing sealing seats of the slide valve housing when the slide valve is in the open position. At least one of the two housing sealing seats rests, by the action of a resilient element, under predetermined pressure against the sealing ring(s) associated with the bridging pipe when the slide valve is in the open position and against the peripheral edge of the shut-off plate(s) when the slide valve is in the closed position.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: December 1, 2009
    Assignee: Z & J Technologies GmbH
    Inventors: Ekkehard Brzoska, Norbert Marx, Friedel Heller
  • Double-disk slide valve
    Patent number: 7600528
    Abstract: A double-disk slide valve (10), the shut-off plates (16, 17) of which are displaceable by means of an actuator rod (21) and which is provided with a bridging pipe (22) having two sealing rings (23, 24) that are in operative engagement with corresponding housing sealing seats (14, 15) of the slide valve housing (11) when the slide valve is in the open position. At least one of the two housing sealing seats (14, 15) rests, by the action of a resilient element (25), under predetermined pressure against the sealing ring(s) (23, 24) associated with the bridging pipe (22) when the slide valve is in the open position and against the peripheral edge of the shut-off plate(s) (16, 17) when the slide valve is in the closed position.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: October 13, 2009
    Assignee: Z&J Technologies GmbH
    Inventors: Ekkehard Brzoska, Norbert Marx, Friedel Heller
  • DOUBLE-DISK SLIDE VALVE
    Publication number: 20090159138
    Abstract: A double-disk slide valve, the shut-off plates of which are displaceable by means of an actuator rod and which is provided with a bridging pipe having two sealing rings that are in operative engagement with corresponding housing sealing seats of the slide valve housing when the slide valve is in the open position. At least one of the two housing sealing seats rests, by the action of a resilient element, under predetermined pressure against the sealing ring(s) associated with the bridging pipe when the slide valve is in the open position and against the peripheral edge of the shut-off plate(s) when the slide valve is in the closed position.
    Type: Application
    Filed: February 25, 2009
    Publication date: June 25, 2009
    Inventors: Ekkehard Brzoska, Norbert Marx, Friedel Heller
  • Double-disk slide valve
    Publication number: 20060042691
    Abstract: A double-disk slide valve (10), the shut-off plates (16, 17) of which are displaceable by means of an actuator rod (21) and which is provided with a bridging pipe (22) having two sealing rings (23, 24) that are in operative engagement with corresponding housing sealing seats (14, 15) of the slide valve housing (11) when the slide valve is in the open position. At least one of the two housing sealing seats (14, 15) rests, by the action of a resilient element (25), under predetermined pressure against the sealing ring(s) (23, 24) associated with the bridging pipe (22) when the slide valve is in the open position and against the peripheral edge of the shut-off plate(s) (16, 17) when the slide valve is in the closed position.
    Type: Application
    Filed: February 3, 2005
    Publication date: March 2, 2006
    Inventors: Ekkehard Brzoska, Norbert Marx, Friedel Heller