Patents by Inventor Hans U. Blaser

Hans U. Blaser 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).

  • Installation of an excess pressure valve in a hermetically sealed flexible container
    Patent number: 4420015
    Abstract: In a safety valve for a hermetically sealed container, which valve includes a carrier plate having a lateral edge flange for fastening the carrier plate to the container and presenting a shallow recess having a base provided with a central opening, a flexible diaphragm inserted in the recess and covering the central opening, and a viscous sealing agent interposed between the base of the recess and the diaphragm, a clamping member is disposed in the recess and provided with pressing jaws positioned to clamp an edge region of the diaphragm against the base of the recess.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: December 13, 1983
    Assignee: SIG-Schweizerische Industrie-Gesellschaft
    Inventor: Hans U. Blaser