Patents by Inventor John B. Hutchison

John B. Hutchison 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: 4515991
    Abstract: In a cable gland comprising two tubular members each wider at one end than at the other and telescopically engageable at their respective wider ends to define an annular chamber around a cable end inserted through the telescoped members with means for urging the tubular members axially together after the chamber has been filled with an appropriate sealing compound, at least one resilient contact finger is in electrical continuity with one of the tubular members and projects inwardly in order to make effective contact with a corrugated sheath or other metallic layer of the cable. The contact finger(s) is/are thus effectively embedded in the sealing compound, and locked in position when it sets, so giving a secure contact as well as an effective fluid-tight seal.
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: May 7, 1985
    Assignee: BICC Public Limited Company
    Inventor: John B. Hutchison
  • Patent number: 4301325
    Abstract: A conduit end is sealed around one or more than one insulated conductor by using a chamber (4) having a peripheral wall, a base with an opening through it communicating with the conduit (2) and an opening opposite the base. The conductor(s) (3) extend through both openings; a pre-formed annular body of a setting resin composition (8) is inserted while in a pasty or viscous condition into the chamber to encircle the conductor or conductors. Axial pressure is then applied to the still pasty or viscous annular body to cause it to flow and form a sealing body in peripherally continuous contact with the chamber and with the, or each, insulated conductor, after which the resin composition sets. A kit for use in the method is also claimed.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: November 17, 1981
    Assignee: BICC Limited
    Inventor: John B. Hutchison