Patents by Inventor Clifford Logan Ashbrook

Clifford Logan Ashbrook 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).

  • Beam balance weighing scale with self-aligning point contact support elements
    Patent number: 4050531
    Abstract: A low-cost rugged beam balance weighing scale with an automatically aligning point contact support mechanism. The beam balance is supported centrally of a base and a pair of balance pans are each supported on opposite ends of the beam, with all supports employing a tapered male member terminating in a rounded point and a female member having a recess for receiving the rounded point of the male member. The radius of curvature of the central region of the recess is greater than the radius of curvature of the mating rounded point to ensure point contact support therebetween.Automatic alignment is provided by providing a loose fit between a coupling portion of either the male or the female member and a corresponding mounting aperture in an appropriate support region of the base, beam or balance pan, the aperture being oval and oriented with the maximum inner dimension normal to the longitudinal axis of the beam balance. Several alternate equivalent arrangements are shown for the point contact support elements.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: September 27, 1977
    Inventor: Clifford Logan Ashbrook