Patents by Inventor Detlef Markus

Detlef Markus 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).

  • PRESSURE RELIEF DEVICE FOR PRESSURE-PROOF ENCAPSULATED HOUSINGS
    Publication number: 20130206759
    Abstract: A protective housing designed as a pressure proof capsule has a pressure relief valve which comprises a porous body 23 and a pore closure 31 about its perimeter for preventing the transition of a flame about an edge of the porous body. Alternative embodiments of pore closures 31 are disclosed, including a soft metal ring about an edge of the porous body that is depressed, such as by a pressure ring, into a gapless imbedding relation to the porous body. An edge region of the porous body can be modified by jacketing materials such as synthetic materials, metals and the like for creating a form fitting bond with the body of the protective housing.
    Type: Application
    Filed: May 3, 2011
    Publication date: August 15, 2013
    Applicant: R. STAHL SCHALTGERATE GMBH
    Inventors: Helmut Würz, Bernd Limbacher, Wolf Hermann, Julia Hornig, Detlef Markus, Uwe Klausmeyer