Patents by Inventor Jozsef Herendi

Jozsef Herendi 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).

  • Insulating felts reinforced by fibrous materials particularly for the waterproofing and/or corrosion-proofing of metal and/or concrete objects
    Patent number: 4214032
    Abstract: The insulating felt comprises 23 to 39% by weight of pyrolytic resin, 35 to 54% by weight of asphalt, 4 to 7% by weight of softener, 2.5 to 8% by weight plasticizer, 2 to 4% by weight of fine grained material and 10 to 25% by weight of reinforcing material. The felt is useful for water proofing or preventing corrosion of metal and concrete objects.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: July 22, 1980
    Assignee: Magyar Asvanyolaj es Foldgaz Kiserleti Intezet
    Inventors: Rezso Csikos, Andras Balogh, Jozsef Herendi, L. Peter Farkas, Janos Remenyi, Sandor Koltay
  • Laminated coating system for insulation
    Patent number: 4148959
    Abstract: A self adhesion ensuring layer having a total thickness of 0.05 to 0.2 mm is carried on a PVC-foil carrier sheet having a thickness of 0.2 to 0.5 mm. The self adhesion ensuring layer comprises 70 to 100% by weight of synthetic caoutchouc, 0 to 16% by weight bitumin and 0 to 14% by weight talc. A ground layer may be interposed between the carrier sheet and self adhesion ensuring layer. The resultant system is useful for insulation of underground pipe.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: April 10, 1979
    Assignee: Magyar Asvanyolaj es Foldgaz Kiserleti Intezet
    Inventors: Rezso Csikos, Andras Balogh, Jozsef Herendi, Katalin Gregor, nee Balogh