Patents by Inventor Douglas H. Culpon, Jr.

Douglas H. Culpon, Jr. 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).

  • Electric discharge machine process and fluid
    Patent number: 5332529
    Abstract: An electric discharge machine fluid has been discovered. The fluid comprises a naphthene oil and 0.15 to 0.50 wt % 1,6-hexamethylene bis(3,5-ditertiarybutyl-4-hydroxycinnamate). The fluid was found to increase the breakdown voltage of the fluid and to stabilize oxidative deterioration.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: July 26, 1994
    Assignee: Texaco Inc.
    Inventors: Theodore C. Mead, Douglas H. Culpon, Jr.
  • High temperature compressor oil
    Patent number: 5156759
    Abstract: A lubricating composition has been found which has particular utility in gas compressors. The composition comprises a polyalphaolefin base oil, an ester oil solubilizer, antioxidants and metal passivators. The composition replaces a mineral oil formulation and demonstrates comparable thermal and oxidative stability in the absence of sulfur, phosphorous and metal additives.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: October 20, 1992
    Assignee: Texaco Inc.
    Inventor: Douglas H. Culpon, Jr.
  • Chain and drive gear lubricant
    Patent number: 5151205
    Abstract: A lubricating composition has been found for chain and gear drive mechanisms. The composition comprises a polyalphaolefin base oil, an ester oil solubilizer and 2 to 4 wt % of a polybutene tackifier. The composition replaces a mineral oil formulation and demonstrates persistent lubricity and substantially reduced smoking in chain and drive gear assemblies operated at high temperatures.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: September 29, 1992
    Assignee: Texaco Inc.
    Inventor: Douglas H. Culpon, Jr.
  • Mold release agent and method for molding ceramics
    Patent number: 5133804
    Abstract: A mold release composition has been discovered. The composition comprises 20% high erucic acid rapeseed oil and 4% tall oil fatty acids in kerosene. The composition demonstrated no objectional smoke generation during calcining of molded ceramic articles. The composition demonstrated adequate mold release and surface finish.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: July 28, 1992
    Assignee: Texaco Inc.
    Inventor: Douglas H. Culpon, Jr.