Patents by Inventor Jacek Czyzewski

Jacek Czyzewski 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).

  • Back pressure flap valve arrangement and the use thereof
    Patent number: 10315059
    Abstract: A back pressure flap valve arrangement is disclosed. The arrangement comprises a housing (101) having an inlet opening (102) and an outlet opening (103) adapted for connection of the housing (101) to a ducting (200), and at least one side wall (104) extending along a flow direction through the housing (101) from the inlet opening (102) to the outlet opening (103). A flap (1) is pivotably hinged about a shaft (5) thereby being movable between an open position and a closed position, said shaft (5) extending transverse the flow direction. At least one locking device (10) is fixedly mounted to the side wall (104) and comprises a locking pin (14) and a stopping member (12). The locking pin (14) is movable between a retracted position and a locking position, and being biased towards said locking position.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: June 11, 2019
    Assignee: NEDERMAN HOLDING AB
    Inventors: Bartosz Kowalski, Jacek Czyzewski, Christian Norman, Klaus Bihlet
  • Back pressure flap valve arrangement and the use thereof
    Publication number: 20180185680
    Abstract: A back pressure flap valve arrangement is disclosed. The arrangement comprises a housing (101) having an inlet opening (102) and an outlet opening (103) adapted for connection of the housing (101) to a ducting (200), and at least one side wall (104) extending along a flow direction through the housing (101) from the inlet opening (102) to the outlet opening (103). A flap (1) is pivotably hinged about a shaft (5) thereby being movable between an open position and a closed position, said shaft (5) extending transverse the flow direction. At least one locking device (10) is fixedly mounted to the side wall (104) and comprises a locking pin (14) and a stopping member (12). The locking pin (14) is movable between a retracted position and a locking position, and being biased towards said locking position.
    Type: Application
    Filed: December 26, 2017
    Publication date: July 5, 2018
    Inventors: Bartosz Kowalski, Jacek Czyzewski, Christian Norman, Klaus Bihlet