Patents by Inventor Gunnar Hast

Gunnar Hast 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: 4084348
    Abstract: A sealing strip, especially for doors and windows, comprising a porous, resilient core and an outer covering which encloses the core and is circumferentially prolongated to form an elongated mounting flange extending lengthwise along the strip. A gas-proof, flexible foil material is inserted between the core and the covering and is likewise circumferentially prolongated. The foil material and the outer covering are bound to each other only in the region of the mounting flange so as to permit a certain sliding movement between those portions of the foil material and the outer covering, which enclose the core, when the strip is compressed or resiliently expanded.
    Type: Grant
    Filed: March 29, 1977
    Date of Patent: April 18, 1978
    Inventor: Gunnar Hast