Patents by Inventor Carl T. Elzy

Carl T. Elzy 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: 4733020
    Abstract: An electrically nonconductive utility cable guard for use in protecting electrical riser cables from vandalism and rodent damage. The cable guard is a U-shaped open-ended channel formed of a reinforced synthetic resin material having an overall thickness of from 1/4" to 5/8". Molded to the outer edge of each side portion of the channel are short mounting tabs having apertures therein for mounting the guard to an accommodating surface such as a utility pole. In one embodiment the tabs extend from the side walls at an angle of 105.degree.. The cable guard neatly mates with underground conduit extensions due to a novel footing integrally molded to one end of the channel. The footing uses a plurality of stepped lips extending axially and radially away from the channel to mate with the ends of conduit of various sizes.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: March 22, 1988
    Assignee: General Telephone Company of California
    Inventor: Carl T. Elzy
  • Patent number: 4596380
    Abstract: The apparatus is slide mounted on elongated bumper support members between the grill and front bumper of a pickup truck. The apparatus is powered by a hydraulic power take-off unit which is selectively connected through a selector valve assembly to a hydraulic tool circuit, and to a series connected tension control unit and speed control valve which feed hydraulic fluid to and return it from a motor that supports a capstan. The control unit bypasses fluid away from the pump when the hydraulic pressure exceeds a maximum allowable value which corresponds to a maximum allowable pull force on the cable. The control unit includes a valve that can be manually actuated for bypassing hydraulic fluid back to the power take-off unit when the speed control valve is closed and/or it is desired to manually terminate a cable pull. Only when it is desired to pull cable is the capstan extended beyond a fender and connected to a take-up reel, with an idler pulley being raised above the reel.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: June 24, 1986
    Assignee: General Telephone Company of California
    Inventors: Carl T. Elzy, Robert A. Pomroy, Ronald B. Soyka