Patents Assigned to Karl Pfisterer Elektrotechnische
  • Patent number: 4457063
    Abstract: A device for providing a high tensile, electrically insulated connection ween two sections of the lead wire of an overhead power line is disclosed. The device is suitable for use as a line separator or phase separator of a lead wire which supplies power to the current collector of a railway vehicle. The device comprises spaced parallel, glass-fiber reinforced plastic insulating rods, each of the ends of which are connected with metal rods of the same outside diameter, and which are arranged in a common plane with the lead wire sections. Two tubular traverses extend transversely to the insulating rods and are rigidly connected to the metal rods at the ends of the insulating rods. A cable system is provided for suspending the device from a support cable. Also disclosed is a method of connecting the plastic rods with the metal rods to form high tensile connections, the metal rods having an axial clamping channel and the method including progressive radial compression of the metal rods about the plastic rods.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: July 3, 1984
    Assignee: Karl Pfisterer Elektrotechnische Spezialartikel GmbH & Co. KG
    Inventors: Max Hockele, Wolfgang G. Torpe, Karl Beham
  • Patent number: 4169652
    Abstract: This disclosure relates to a method and apparatus for clamping electrical conductors, such as cables. The conductors are placed in clamping channels formed in a clamp body having at least two separate body parts. The channels have a cross-sectional shape deviating from the circular shape of the conductors. When the clamp is pressed together by means of a pressing tool, the body parts bend elastically about the conductors, while the conductor metal deforms to the shape of the clamping channels. The clamp is then secured by at least one screw of required tensile strength sufficient only to absorb the elastic forces of the deformed body parts and conductors.
    Type: Grant
    Filed: October 5, 1977
    Date of Patent: October 2, 1979
    Assignee: Karl Pfisterer Elektrotechnische
    Inventors: Max Hockele, Helmut Ruff