Patents by Inventor Ronald M. Clark

Ronald M. Clark 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: 5069090
    Abstract: A multi-purpose tool for opening a variety of pail or bucket types of containers and having a handle portion from which a claw-type opener extends from one end and optionally a plurality of projections adapted for opening particular types of containers extend from the opposite end.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: December 3, 1991
    Inventor: Ronald M. Clark
  • Patent number: 4884312
    Abstract: A metal blade trowel having a handle formed of a thermoplastic material directly attached by injection molding through an elongate aperture extending along the longitudinal centerline of the blade.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: December 5, 1989
    Inventor: Ronald M. Clark
  • Patent number: 4698870
    Abstract: A plurality of circular grout striking projections each having a radius different than the rest are arranged about the periphery of a central circular disc such that no projection interferes with the use of any adjacent projection in striking grout between pieces of tile.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: October 13, 1987
    Inventor: Ronald M. Clark
  • Patent number: 4536910
    Abstract: A spatula type hand implement having integrally formed handle and blade portions and a compound curved reinforcing blister molded therein along the longitudinal axis across the transition between the handle and blade portions.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: August 27, 1985
    Inventor: Ronald M. Clark
  • Patent number: 4316302
    Abstract: An improved trowel for the spreading of adhesives, plaster and the like having a blade and an integrally formed handle particularly adapted for manufacture by injection molding a thermoplastic material.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: February 23, 1982
    Inventor: Ronald M. Clark