Patents Assigned to Lindley Incorporated
  • Material-leveling apparatus
    Patent number: 5375942
    Abstract: A concrete striking equipment presented in the form of a framework mounted on a longitudinal bar operating in a vibratory relationship in a horizontal plane because of an off-center rotating weight defining a part of the powering means. While basically developed for striking concrete, the invention's field of utility extends to the leveling and/or grading of earth and rock.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: December 27, 1994
    Assignee: Lindley Incorporated
    Inventors: Joseph Lindley, Thomas R. Lindley