Patents by Inventor Mark E. Rand

Mark E. Rand 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).

  • Patent number: 6615482
    Abstract: An amorphous magnetic core is produced by wrapping cut strips of amorphous metal about a mandrel to form a distributed gap core. The cut strips are secured to the mandrel during assembly by wrapping the strips with amorphous metal ribbons that have been weakened in predetermined areas but not fully parted. After the core has been built to its desired size, the weakened ribbons are completely parted. This method of making an amorphous magnetic core produces a tightly wound distributed gap core without the need for a belt winder or specialized strip holding devices.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: September 9, 2003
    Assignee: ABB Inc.
    Inventor: Mark E. Rand
  • Publication number: 20020080000
    Abstract: An amorphous magnetic core is produced by wrapping cut strips of amorphous metal about a mandrel to form a distributed gap core. The cut strips are secured to the mandrel during assembly by wrapping the strips with amorphous metal ribbons that have been weakened in predetermined areas but not fully parted. After the core has been built to its desired size, the weakened ribbons are completely parted. This method of making an amorphous magnetic core produces a tightly wound distributed gap core without the need for a belt winder or specialized strip holding devices.
    Type: Application
    Filed: February 26, 2002
    Publication date: June 27, 2002
    Applicant: ABB INC. [formerly known as ABB Power T&D Company Inc.]
    Inventor: Mark E. Rand
  • Patent number: 6374480
    Abstract: A distributed gap core is prepared by a process comprising the steps of inter-wrapping a plurality of amorphous metal strips with a continuous amorphous metal ribbon having at least one weakened area and separating the at least one weakened area to form a joint region. The strips may comprise one or more groups of cut ribbon having substantially aligned longitudinal edges and substantially aligned transverse edges.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: April 23, 2002
    Assignee: ABB Inc.
    Inventor: Mark E. Rand