Patents by Inventor James D. Ernst

James D. Ernst 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: 4858424
    Abstract: A variable radius cable/conductor carrier for supporting and guiding electrical, hydraulic and other conductors extending between a stationary position and a movable piece of machinery. The conductor is made up of two spaced apart parallel plate-link chains connected by support rods. The link assembly making up the chains comprises a series of individual links pivotally connected at each end so as to allow rotational movement between the links. A plurality of arcuate slots are formed in one of the links and when pinned to the adjacent link act to limit the rotation between the links. The arcuate slots are of differing lengths so each length results in a different radius of curvature for the carrier. Thus one of several radii of curvature of the carrier may be selected during assembly without changing any of the elements simply by selecting the position of the limiting pin.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: August 22, 1989
    Assignee: Magnetek Controls
    Inventors: David C. Loding, James D. Ernst