Patents by Inventor Harald Leisner

Harald Leisner 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).

  • Publication number: 20170306816
    Abstract: A venting module for an internal combustion engine comprises an oil separator with an oil return line, and a check valve which is arranged in the oil return line. The check valve comprises a valve housing, a valve body which is held in the valve housing such that it can be displaced as an entirety between an open position and a closed position, wherein the valve body is held in the open position without prestress and as a result of gravity in the rest state of the internal combustion engine. During operation of the internal combustion engine, the valve body is in the open position independently of the prevailing gas pressure if a defined liquid level in the valve housing is not exceeded, and the valve body is set up for automatic displacement into the closed position as a result of buoyancy if a defined liquid level in the valve housing is exceeded.
    Type: Application
    Filed: October 2, 2015
    Publication date: October 26, 2017
    Applicant: BRUSS SEALING SYSTEMS GMBH
    Inventors: MANFRED BRAND, HARALD LEISNER, STEFAN RUST, ROLAND KRAL, THOMAS SCHRADER
  • Patent number: 6224058
    Abstract: A static sealing arrangement, comprising a strip-shaped seal of elastomeric material pre-installed in a groove formed in a first structural member and having a contact portion which protrudes, when free, and is held tightly pressed against a planar sealing surface of a second structural member is characterized in that the elastomeric material possesses the property of swelling greatly under the influence of the medium to be sealed off and is joined directly to the material of the first structural member by being formed integrally with the same, and the cross sectional profile of the seal is designed to be asymmetrical, having the contact portion offset towards the side facing air of the seal, and the wall of the groove facing the medium projects towards the sealing surface of the second structural member by such a distance, as compared to the wall of the groove which faces air, that the wall facing the medium comes to lie adjacent the sealing surface in the final assembled state of the sealing arrangement.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: May 1, 2001
    Assignee: Dichtungstechnik G. Bruss GmbH & Co.
    Inventors: Uwe Drebing, Harald Leisner