Patents by Inventor Hermann Trabold

Hermann Trabold 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: 5556543
    Abstract: The invention relates to a filter (1) for filtering gaseous and liquid media, in particular an oil filter for internal combustion engines, having a filter housing (2) and a filter packing (8) taken up in the filter housing and made of a porous deformable material, e.g. a roll of absorbent paper. To prevent the filter packing from being deformed and thereby preventing a smooth flow through the filter packing, stabilizing elements (12), e.g. stabilizing bars, are provided for fixing the form and position of the filter packing (8) in the filter housing.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: September 17, 1996
    Inventor: Hermann Trabold
  • Patent number: 5178753
    Abstract: The present invention relates to an oil filter (1) for internal combustion engines, which is preferably used in secondary oil circuit in addition to a conventional oil filter. The oil filter comprises a filter housing (2a, 2b, 3o, 3u) in which a filter element (5) that consists of a roll of absorbant paper that is wound about a rod (4) is installed. In order to simplify production and inventory management, the present invention proposes that the oil filter be configured as a set of elements that comprises the body sections (2a, 2b) and caps (3o, 3u) and a rod (4) with the rolled filter element (5). The volume of the oil filter can be matched to a particular application by connecting a plurality of body sections (2a, 2b) with an appropriate number of rods (4).
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: January 12, 1993
    Inventor: Hermann Trabold