Patents by Inventor Howard F. McRae

Howard F. McRae 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).

  • Non-halogenated insulation with high oxygen index
    Patent number: 5063266
    Abstract: The invention features in synergistic combination a new chemistry for fabricating wire and cable insulation and heat-shrinkable tubing and an irradiation process for providing the insulation with both increased tensile strength and increased elongation.The chemistry utilizes a polycondensation-type process wherein a hydrophobic olefinic terpolymer base material having 3% or less carboxyl groups and a hydrophilic flame retardant filler material containing hydroxyl groups is linked to a silicone material containing silanol groups.The insulation is further characterized by an oxygen index in excess of 50.0, resulting from high loadings of the fire retardant filler material, generally in excess of 200 parts by weight of the total material weight.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: November 5, 1991
    Assignee: Champlain Cable Corporation
    Inventor: Howard F. McRae
  • Non-halogenated insulation with high oxygen index
    Patent number: RE35127
    Abstract: The invention features in synergistic combination a new chemistry for fabricating wire and cable insulation and heat-shrinkable tubing and an irradiation process for providing the insulation with both increased tensile strength and increased elongation.The chemistry utilizes a polycondensation-type process wherein a hydrophobic olefinic terpolymer base material having 3% or less carboxyl groups and a hydrophilic flame retardant filler material containing hydroxyl groups is linked to a silicone material containing silanol groups.The insulation is further characterized by an oxygen index in excess of 50.0, resulting from high loadings of the fire retardant filler material, generally in excess of 200 parts by weight of the total material weight.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: December 19, 1995
    Assignee: Champlain Cable Corporation
    Inventor: Howard F. McRae