Patents by Inventor Arney L. Curtis

Arney L. Curtis 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: 4375893
    Abstract: An extendible bunk stake for use on a log truck and the like. The stake includes an upright post adapted to be mounted on a bunk on the truck, and an extension member telescopically extendible from the post from a lowered to a raised position. The extension member is releasably locked in its raised position by a spring-operated latch which cooperates with a latch cover on the post to indicate when the latch is in a locking position. An arm mounted on the member, adjacent its upper end, is shiftable between an upwardly projecting position and an inwardly projecting position where the arm is engageable by a log being lifted by a boom loader, to extend the extension member. The arm is held in its inwardly and upwardly projecting positions by a spring-loaded lock, with arm release from its inwardly extending position and movement toward its upwardly extending position occurring upon continued lifting of such a log beyond the point where the extension member has been fully raised.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: March 8, 1983
    Inventor: Arney L. Curtis
  • Patent number: 4079982
    Abstract: Line holding apparatus including a tubular mounting member secured in a substantially stationary position to a support, a cap which fits against the end of the mounting member spaced outwardly from the support, and a spring yieldably biasing the cap against the end of the mounting member. An elongate arm secured to the cap extends upwardly therefrom to confine and hold a portion of a cable when the cap is held against the mounting member. A lip on the cap engages side surfaces of the mounting member to inhibit lateral shifting of the cap. A member attached to the cap engages a notch on the end of the tube to inhibit rotation of the cap and arm. A force applied by the line against the arm which is greater than the biasing force of the spring releases the arm in almost any direction in which the line force is applied. An adjustment device is provided for increasing or decreasing the tension force of the spring.
    Type: Grant
    Filed: June 23, 1976
    Date of Patent: March 21, 1978
    Inventor: Arney L. Curtis