Patents by Inventor G. Douglas Baxter

G. Douglas Baxter 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).

  • Method and apparatus for providing jackets on cable
    Patent number: 5162120
    Abstract: Jacket extrusion apparatus in which a core tube located within an extruder head is provided with axial projections which are spaced around the tube. The projections break down accumulated drool from the extrudate and cause it to move away as small particles.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: November 10, 1992
    Assignee: Northern Telecom Limited
    Inventors: G. Douglas Baxter, James C. Grant, John N. Garner
  • Magnetically permeable particles in telecommunications cable
    Patent number: 4857676
    Abstract: Method of making insulated conductor wire in which a homogeneous mixture of a dielectric carrier and magnetically permeable particles is sprayed onto the wire to deposit a layer of the mixture on the wire. The layer is then hardened to provide an insulating layer with the particles substantially uniformly dispersed therein.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: August 15, 1989
    Assignee: Northern Telecom Limited
    Inventors: John N. Garner, G. Douglas Baxter, James C. Grant