Patents by Inventor Norman G. Bartrug

Norman G. Bartrug 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).

  • Lost end rethread clip
    Patent number: 4188435
    Abstract: A flat bodied rethread clip is shown having a plurality of slots adapted to attach thereto running parallel strands. Risers are provided on both sides of the flat body aligned with each of a set of slots so that strands running in the slots will follow the riser into any guides or grooves used to maintain parallel strand spacing.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: February 12, 1980
    Assignee: PPG Industries, Inc.
    Inventor: Norman G. Bartrug
  • Process for forming elastomer films
    Patent number: 4073849
    Abstract: A method of forming a continuous film of an elastomeric latex and a phenolic resin comprising spraying a plurality of coats of the aqueous admixture onto a nonadherent surface. The nonadherent surface is at a temperature of 120.degree. F. or greater and each coat of the aqueous admixture is less than about 0.7 mil dry film thickness. The film so formed can be tested for physical properties and the testing results are capable of being correlated with the performance of glass fibers with the aqueous admixture coated thereon for reinforcement of elastomeric matrices.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: February 14, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Norman G. Bartrug, Donald L. McDaniel
  • Method of testing glass fiber coating compositions
    Patent number: 4047429
    Abstract: A method of forming a continuous film of an elastomeric latex and a phenolic resin comprising spraying a plurality of coats of the aqueous admixture onto a nonadherent surface. The nonadherent surface is at a temperature of 120.degree. F. or greater and each coat of the aqueous admixture is less than about 0.7 mil dry film thickness. The film so formed can be tested for physical properties and the testing results are capable of being correlated with the performance of glass fibers with the aqueous admixture coated thereon for reinforcement of elastomeric matrices.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: September 13, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Norman G. Bartrug, Donald L. McDaniel