Patents by Inventor Liggett A. Cothran

Liggett A. Cothran 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).

  • Plastic abrasion-resistant protective sleeve for hose
    Patent number: 5277227
    Abstract: The present invention relates to a plastic abrasion resistant protective sleeve for covering a radiator hose. The sleeve of the invention has an annularly corrugated external surface comprising a plurality of projections and troughs formed in said sleeve. The projections are substantially evenly distributed and have a substantially uniform size. The sleeve has a slit along its longitudinal axis which provides for easy application to or removal from the hose, and is made of plastic that is substantially unaffected by high temperatures. A method of using said protective sleeve for protecting a radiator hose from abrasion also is provided.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: January 11, 1994
    Assignee: Dayco Products, Inc.
    Inventors: Johnny S. Bradshaw, Jonas L. Gunter, Liggett A. Cothran, William M. Edwards, Pearison W. Henry
  • Plastic abrasion-resistant protective sleeve for hose and method of protecting hose
    Patent number: 4967799
    Abstract: The present invention relates to a plastic abrasion resistant protective sleeve for covering a radiator hose. The sleeve of the invention has a corrugated external surface comprising a plurality of projections and troughs formed in said sleeve. The projections are substantially evenly distributed and have a substantially uniform size. The sleeve has a slit along its longitudinal axis which provides for easy application to or removal from the hose, and is made of plastic that is substantially unaffected by high temperatures. A method of using said protective sleeve for protecting a radiator hose from abrasion also is provided.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: November 6, 1990
    Assignee: Dayco Products, Inc.
    Inventors: Johnny S. Bradshaw, Jonas L. Gunter, Liggett A. Cothran, William M. Edwards, Pearison W. Henry
  • Method of protecting hose with a plastic abrasion-resistant protective sleeve
    Patent number: 4766662
    Abstract: The present invention relates to a plastic abrasion resistant protective sleeve for covering a radiator hose. The sleeve of the invention has a corrugated external surface comprising a plurality of projections and troughs formed in said sleeve. The projections are substantially evenly distributed and have a substantially uniform size. The sleeve has a slit along its longitudinal axis which provides for easy application to or removal from the hose, and is made of plastic that is substantially unaffected by high temperatures. A method of using said protective sleeve for protecting a radiator hose from abrasion also is provided.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: August 30, 1988
    Assignee: Dayco Products, Inc.
    Inventors: Johnny S. Bradshaw, Jonas L. Gunter, Liggett A. Cothran, William M. Edwards, Pearison W. Henry
  • Blow molded tubing with special holes and method of making same
    Patent number: 4655986
    Abstract: A method of making blow-molded perforated tubing and the tubing made by said method is provided. In the method of the invention, hollow-walled protuberances are blow molded into the side of the tubing as the tubing is formed and perforations are formed by cutting the hollow-walled protuberances.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: April 7, 1987
    Assignee: Dayco Products, Inc.
    Inventors: Liggett A. Cothran, Edward L. Morgan, Robert E. Stevens, Homer N. Holden, R. Neal Ensley
  • Hose construction
    Patent number: 4471813
    Abstract: A convoluted hose construction comprised of an elongated helically wound elastomeric strip is provided and has first and second connecting means defining opposite side edge portions of the strip for holding the strip in its helically wound relation; and, the connecting means assures that the hose construction is held together in a high strength manner with maximum flexibility while using a minimum amount of material.
    Type: Grant
    Filed: September 18, 1981
    Date of Patent: September 18, 1984
    Assignee: Dayco Corporation
    Inventor: Liggett A. Cothran
  • Hose construction
    Patent number: 4291728
    Abstract: A convoluted hose construction comprised of an elongated helically wound elastomeric strip is provided and has first and second connecting means defining opposite side edge portions of the strip for holding the strip in its helically wound relation; and, the connecting means assures that the hose construction is held together in a high strength manner with maximum flexibility while using a minimum amount of material.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: September 29, 1981
    Assignee: Dayco Corporation
    Inventor: Liggett A. Cothran