Patents by Inventor Donald E. Watkins

Donald E. Watkins 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: 4993339
    Abstract: An improved uphauler assembly for use in facilitating the uphauling of a sail of a sailboard by a user wearing a harness including a harness hook. The assembly includes an uphauler rope or line formed in a large loop having a small loop at one end. The large loop is held in a pulley affixed near the front of the boom. The smaller loop is placed in the harness hook, and one end of the large loop is pulled, thereby raising the sail from the surface of the water with only half the force necessary with the usual method. An elastic cord retracts the assembly against the front of the mast when the unit is not in use.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: February 19, 1991
    Inventors: Frank H. Cooper, Donald E. Watkins
  • Patent number: 3984033
    Abstract: An electric gun is provided for the sanitary extruding of comestibles, such as cookie dough, or the like, having an easily disassembled mechanism. Those portions of the gun which are in contact with the food are removable from the drive mechanism to permit sanitary cleaning as well as ease of filling. Reversibility of portions of the mechanism makes reassembly of the gun uncomplicated.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: October 5, 1976
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Hugh F. Groth, Guilbert M. Hunt, John D. Vogel, Donald E. Watkins
  • Patent number: D247414
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: March 7, 1978
    Assignee: Aluminum Company of America
    Inventors: Donald E. Watkins, Marshall B. Johnson
  • Patent number: D256467
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: August 19, 1980
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Marshall B. Johnson, Donald E. Watkins, Robert A. Williams
  • Patent number: D271613
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: November 29, 1983
    Assignee: The Wooster Brush Company
    Inventor: Donald E. Watkins
  • Patent number: D287894
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: January 20, 1987
    Assignee: Regina Co. Inc.
    Inventors: Donald E. Watkins, Frank P. Aadahl
  • Patent number: D288016
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: January 27, 1987
    Assignee: The Regina Co., Inc.
    Inventors: Donald E. Watkins, Frank P. Aadahl