Patents by Inventor Bert Haushofer

Bert Haushofer 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).

  • Building sheeting and method of its manufacture
    Patent number: 5013591
    Abstract: A bituminous building sheeting which is compatible with hot mopping bitumen and bituminous cold adhesives and whose covering mass is modified with APP and IPP. The mass, homogenized under high shear forces is cooled off after the application of 180.degree. to 200.degree. C. at a cooling speed of not more than 120 K/min. Polymer spherulites form on the surface thereby which improve the adhesiveness and prevent oily components from exuding out of the bitumen.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: May 7, 1991
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Bert Haushofer, Ernst Scherp, Wilfried Schumacher, Petru Sabau
  • Fire proofing web with vapor barrier
    Patent number: 4601943
    Abstract: The fire proofing web is laid on a roof surface, in addition to the usual roof and insulating webs. It is intended to suppress or at least delay the occurrance of surface fires covering an area. At the same time, it is intended to form a vapor barrier. For that purpose, it includes, as the carrier web, an aluminium foil between two plastic foils. A glass fiber fleece with a content of crystalline-bound water is applied to a plastic foil as a lining thereon. In the event of a fire, the water evaporates and the resulting water vapor prevents or delays a surface fire or fire penetration.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: July 22, 1986
    Inventors: Bert Haushofer, Karl Serwane