Patents by Inventor Kevin T. Eldridge

Kevin T. Eldridge 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).

  • Oil-spill marking composition
    Patent number: 5472484
    Abstract: A method for visibly marking an area contaminated with transformer oil or other organic liquid uses a marking composition that consists of a colorant held within a solid carrier material, the colorant being such as to effect a visibly perceptible change upon contact with the organic liquid. The carrier material may be an absorbent that permits delivery of the colorant through capillary action, or the colorant may be encapsulated by a cell-forming matrix material that interacts with the contaminating liquid to effect release.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: December 5, 1995
    Assignee: Midsun Group
    Inventor: Kevin T. Eldridge
  • Oil-spill marking method and composition
    Patent number: 5356465
    Abstract: A method for visibly marking an area contaminated with transformer oil or other organic liquid uses a marking composition that consists of a colorant held within a solid carrier material, the colorant being such as to effect a visibly perceptible change upon contact with the organic liquid. The carrier material may be an absorbent that permits delivery of the colorant through capillary action, or the colorant may be encapsulated by a cell-forming matrix material that interacts with the contaminating liquid to effect release.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: October 18, 1994
    Assignee: Midsun Group, Inc.
    Inventor: Kevin T. Eldridge
  • Horizontal cable animal barrier
    Patent number: 5293721
    Abstract: A horizontal cable animal barrier for mounting on a cable to deter animal passage including a plurality of roller elements each having a central hole for rotatably mounting on a cable and a spacer element between each pair of roller elements and also having a central hole for rotatably mounting on the cable, in which the spacer elements are of a different size than the roller elements on either side to present an uneven, rotating barrier to animals on the cable to prevent the animals from passing.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: March 15, 1994
    Assignee: The Omt Group
    Inventors: James T. Richard, George J. Costigan, David J. Perry, Kevin T. Eldridge