Patents by Inventor Ulrich Hochstrasser

Ulrich Hochstrasser 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).

  • Manufacture of insulated electric conductors
    Patent number: 4444948
    Abstract: A mixture of substances is fed to an extruder and, after being homogenized and liquefied, is extruded on an electric conductor or as a pipe. To meet electric cable specifications, the insulating material used is a polyolefin, such as polyethylene, cross-linking of which is brought about by the addition of a silane, a free-radical generator, and a silanol condensation catalyst. After extrusion, cross-linking takes place in the presence of moisture. To facilitate penetration of the moisture and accelerate cross-linking, an agent capable of reducing the rate of crystallization of the polymer, such as vinyl acetate, is used as a further additive.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: April 24, 1984
    Assignee: Maillefer, S.A.
    Inventors: Ulrich Hochstrasser, Eberhard Kertscher
  • Manufacture of insulated electric conductors
    Patent number: 4351790
    Abstract: A mixture of substances is fed to an extruder and, after being homogenized and liquefied, is extruded on an electric conductor or as a pipe. To meet electric cable specifications, the insulating material used is a polyolefin, such as polyethylene, cross-linking of which is brought about by the addition of a silane, a free-radical generator, and a silanol condensation catalyst. After extrusion, cross-linking takes place in the presence of moisture. To facilitate penetration of the moisture and accelerate cross-linking, an agent capable of reducing the rate of crystallization of the polymer, such as vinyl acetate, is used as a further additive.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: September 28, 1982
    Assignee: Maillefer S.A.
    Inventors: Ulrich Hochstrasser, Eberhard Kertscher