Patents by Inventor Otto Eppel

Otto Eppel 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: 7588615
    Abstract: A filter element for separating a liquid from a gas stream, e.g. for de-oiling compressed air produced by an oil lubricated compressor, including an annularly closed filter medium and upper and lower end disks at the axial end faces of the annular filter medium, in which the lower end disk closes off an interior space formed by the filter medium, and a drainage tube extends into the interior space and is guided at the upper end disk by a preferably conical sealing element mounted on a support plate on the upper end disk such that when the filter element is installed in a container, the sealing element fits against and forms a seal with a cover of the container. The sealing element optionally has a hollow interior to facilitate compensation of tolerances in at least one of the x-direction and the y-direction.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 15, 2009
    Assignee: Mann & Hummel GmbH
    Inventors: Eric Gillenberg, Wolfgang Heikamp, Melanie Hirsch, Otto Eppel, Sandra Poelloth, Hans-Michael Winter
  • Publication number: 20060201871
    Abstract: A filter element for separating a liquid from a gas stream, e.g. for de-oiling compressed air produced by an oil lubricated compressor, including an annularly closed filter medium and upper and lower end disks at the axial end faces of the annular filter medium, in which the lower end disk closes off an interior space formed by the filter medium, and a drainage tube extends into the interior space and is guided at the upper end disk by a preferably conical sealing element mounted on a support plate on the upper end disk such that when the filter element is installed in a container, the sealing element fits against and forms a seal with a cover of the container. The sealing element optionally has a hollow interior to facilitate compensation of tolerances in at least one of the x-direction and the y-direction.
    Type: Application
    Filed: February 28, 2006
    Publication date: September 14, 2006
    Applicant: Mann & Hummel GmbH
    Inventors: Eric Gillenberg, Wolfgang Heikamp, Melanie Hirsch, Otto Eppel, Sandra Poelloth, Hans-Michael Winter
  • Patent number: 7097683
    Abstract: A filter element (15), especially suitable for separating entrained oil from an air stream, having a drainage device (23) including a drainage tube (22) which is connected to an upper end disk (16) of the filter element (15) by a connector (24) which may include preferably releasable clip hooks (25). The resulting filter element with a drainage device is easy and economical to manufacture, and may have a modular construction in which the connector (24) and the drainage tube (22) are separate components so that the length of the drainage tube can be optimally matched to various filter dimensions.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: August 29, 2006
    Assignee: Mann & Hummel GmbH
    Inventors: Otto Eppel, Wolfgang Heikamp, Markus Zuerker
  • Publication number: 20050044827
    Abstract: A filter element (15), especially suitable for separating entrained oil from an air stream, having a drainage device (23) including a drainage tube (22) which is connected to an upper end disk (16) of the filter element (15) by a connector (24) which may include preferably releasable clip hooks (25). The resulting filter element with a drainage device is easy and economical to manufacture, and may have a modular construction in which the connector (24) and the drainage tube (22) are separate components so that the length of the drainage tube can be optimally matched to various filter dimensions.
    Type: Application
    Filed: December 29, 2003
    Publication date: March 3, 2005
    Applicant: Mann & Hummel GmbH
    Inventors: Otto Eppel, Wolfgang Heikamp, Markus Zuerker