Patents by Inventor John T. Eldredge

John T. Eldredge 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).

  • Artificial foliage for underwater camouflage and decoy purposes
    Patent number: 7512326
    Abstract: Artificial foliage is described for use in camouflaging underwater structures, and/or for serving as cover vegetation which attracts aquatic life. A preferred version of the artificial foliage includes an elongated stem having shoots (e.g., leaves and/or branches) extending therefrom, a ballast weight connected to one of the stem ends, and a float and/or tensioning line connected to the opposite stem end for supporting the stem at least partially upright in the water above the ballast. The ballast may take a variety of forms, such as a conventional fishing sinker, sinkable structures such as bait traps or anchors, or an underwater camera.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 31, 2009
    Inventors: John T. Eldredge, Charles L. Eldredge, Michael J. Laqua
  • Fluid machine
    Patent number: 4486145
    Abstract: A fluid machine which converts fluid movement into a useful force utilizing a pivotally mounted first plate which is hingedly connected to a second plate, the first plate first contacting the moving fluid and the second plate causing the first plate to move.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: December 4, 1984
    Inventors: Charles L. Eldredge, John T. Eldredge