Patents by Inventor Detlev Demmig

Detlev Demmig 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).

  • Laboratory centrifuge having a casing cover and rotor chamber adapted to exhaust circulated air
    Patent number: 6068586
    Abstract: A laboratory centrifuge has a housing which can be closed by a casing cover and having in the housing a rotor chamber which contains a motor-driven vertical-axis rotor to accept test tubes. During operation, the test tubes are warmed by friction. To cool the centrifuge, cooling air is pulled in through openings in the lower side of the housing and upward into the rotor chamber by the fan action created by the rotation of the rotor. The air is guided out of the rotor chamber through an air exit in a direction of flow tangential to the perimeter of the rotor in a manner that ensures low turbulence and, thus, low noise. In particular, a slit-like air exit opening is arranged between the casing cover and the top side of the housing.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: May 30, 2000
    Assignee: Kendro Laboratory Products GmbH
    Inventors: Michael Koch, Detlev Demmig, Rudiger Uhlendorf, Sebastian Reich
  • Laboratory centrifuge having a casing cover and rotor chamber adapted to exhaust circulated air
    Patent number: 5897483
    Abstract: A laboratory centrifuge has a housing which can be closed by a casing cover and having in the housing a rotor chamber which contains a motor-driven vertical-axis rotor to accept test tubes. During operation, the test tubes are warmed by friction. To cool the centrifuge, cooling air is pulled in through openings in the lower side of the housing and upward into the rotor chamber by the fan action created by the rotation of the rotor. The air is guided out of the rotor chamber through an air exit in a direction of flow tangential to the perimeter of the rotor in a manner that ensures low turbulence and, thus, low noise. In particular, a slit-like air exit opening is arranged between the casing cover and the top side of the housing.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: April 27, 1999
    Assignee: Kendro Laboratory Products, GmbH
    Inventors: Michael Koch, Detlev Demmig, Rudiger Uhlendorf, Sebastian Reich
  • Laboratory centrifuge having a casing cover and rotor chamber adapted to exhaust circulated air
    Patent number: 5772572
    Abstract: A laboratory centrifuge having a housing which can be closed by a casing cover and having in the housing a rotor chamber which contains a motor-driven vertical-axis rotor to accept test tubes is disclosed. During operation, the test tubes are warmed by friction. To cool the centrifuge, cooling air is pulled in through openings in the lower side of the housing and upward into the rotor chamber by the fan action created by the rotation of the rotor. The air is guided out of the rotor chamber through an air exit in a direction of flow tangential to the perimeter of the rotor in a manner that ensures low turbulence and, thus, low noise. In particular, a slit-like air exit opening is arranged between the casing cover and the top side of the housing.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: June 30, 1998
    Assignee: Heraeus Instruments GmbH & Co. KG
    Inventors: Michael Koch, Detlev Demmig, Rudiger Uhlendorf, Sebastian Reich