Patents by Inventor Gunnar Borgstrom

Gunnar Borgstrom 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).

  • Apparatus for application of a tape of material in longitudinal direction of a substantially rectangular electrical conductor
    Patent number: 4309231
    Abstract: A tape of insulating material, provided with a binder, is fixed to an elongated, rectangular electrical conductor in a longitudinal direction thereof, the tape being brought into contact with a first side of the conductor before the other portions of the tape are folded around the conductor with the use of endless belts movable transversely to the longitudinal direction of the conductor for bringing the other portions of the tape in contact with at least two other adjacent sides of the conductor.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: January 5, 1982
    Assignee: ASEA Aktiebolag
    Inventors: Gunnar Borgstrom, Bengt Rothman
  • Apparatus for application of a tape of insulating material in the longitudinal direction of a substantially rectangular electrical conductor
    Patent number: 4259141
    Abstract: In apparatus for application of a tape of insulating material provided with a heat fixing binder to a substantially elongated rectangular electrical conductor in the longitudinal direction thereof, the conductor is heated, a portion of the tape is contacted with the first side of the conductor and other portions of the tape are successively contacted with other respective sides of the conductor. The successive contacting stations after the first contacting station each include apparatus for folding a portion of the tape about an edge of the conductor and then contacting a portion of the tape with a side of the conductor including that edge. The conductor may be additionally heated after several folding and contacting operations, and pressure may be applied to the conductor and tape after the tape has been completely fixed to the conductor.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: March 31, 1981
    Assignee: ASEA Aktiebolag
    Inventors: Gunnar Andersson, Gunnar Borgstrom
  • Method for application of a tape of insulating material in the longitudinal direction of a substantially rectangular electrical conductor
    Patent number: 4159920
    Abstract: In method for application of a tape of insulating material provided with a heat fixing binder to a substantially elongated rectangular electrical conductor in the longitudinal direction thereof, the conductor is heated, a portion of the tape is contacted with the first side of the conductor and other portions of the tape are successively contacted with other respective sides of the conductor. The successive steps of contacting after the first contacting step each include a first step of folding a portion of the tape about an edge of the conductor and then contacting a portion of the tape with a side of the conductor including that edge. The conductor may be additionally heated after several steps of folding and contacting, and pressure may be applied to the conductor and tape after the tape has been completely fixed to the conductor.
    Type: Grant
    Filed: April 22, 1977
    Date of Patent: July 3, 1979
    Assignee: ASEA Aktiebolag
    Inventors: Gunnar Andersson, Gunnar Borgstrom