Patents by Inventor Edgar Nickel

Edgar Nickel 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).

  • Patent number: 6720886
    Abstract: A switchgear cabinet including a smoke indicator which has an intake pipe and, in a housing, a smoke sensor as well as a fan or ventilator, which draws air from the interior of the switchgear cabinet into the housing via an inlet aperture in a housing wall and discharges the air via an outlet into the space outside the housing. A sensitive smoke indicator, which is also usable with the switchgear cabinet partially open, has the intake pipe communicating by its upper end region with the inlet aperture. The housing which is enclosed in a sealing manner apart from the intake pipe and the outlet, is disposed in the interior of the switchgear cabinet.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: April 13, 2004
    Assignee: Rittal GmbH & Co. KG
    Inventors: Michael Seelbach, Heinrich Strackbein, Markus Hain, Edgar Nickel
  • Publication number: 20030063007
    Abstract: A switchgear cabinet including a smoke indicator which has an intake pipe and, in a housing, a smoke sensor as well as a fan or ventilator, which draws air from the interior of the switchgear cabinet into the housing via an inlet aperture in a housing wall and discharges the air via an outlet into the space outside the housing. A sensitive smoke indicator, which is also usable with the switchgear cabinet partially open, has the intake pipe communicating by its upper end region with the inlet aperture. The housing which is enclosed in a sealing manner apart from the intake pipe and the outlet, is disposed in the interior of the switchgear cabinet.
    Type: Application
    Filed: March 20, 2002
    Publication date: April 3, 2003
    Inventors: Michael Seelbach, Heinrich Strackbein, Markus Hain, Edgar Nickel
  • Patent number: 6035674
    Abstract: A door locking device has several closing rods that cooperate with closing recesses or closing elements on the body of a cabinet and that may be moved by a lock from open positions into closed positions and vice-versa. The number of closing points can be increased by simple, commercially available locks and bolts, as pairs of closing rods form the push rods of at least two push rod locking devices and in that the push rod locks carry additional pinions that are mutually coupled by a coupling rod with teeth and can be moved in the same direction.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: March 14, 2000
    Assignee: Rittal-Werk Rudolf Loh GmbH
    Inventor: Edgar Nickel