Patents by Inventor Thomas A. Schenach

Thomas A. Schenach 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: 5447642
    Abstract: A process for the recycling of used and contaminated water-based metalworking fluids comprising separation of solid contaminants by settling and filtration, and separation of unemulsifiable tramp oil, reduction in total dissolved solids, removal of destructive bacteria and fungi, and removal of odors and toxic gases by the injection of steam, said process not requiring the use of a centrifuge.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: September 5, 1995
    Inventor: Thomas A. Schenach
  • Patent number: 5079338
    Abstract: An improvement in thermosetting bis(isoimide) resin compositions is achieved by replacing a small part of the unsaturated carboxylic acid anhydride starting material with a stoichiometrically equivalent amount of a poly(diolefin)-unsaturated carboxylic acid anhydride adduct.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: January 7, 1992
    Inventors: Thomas A. Schenach, John D. Harper
  • Patent number: 4684373
    Abstract: A gasoline additive composition comprising an organic peroxide and a gasoline detergent in a hydrocarbon solvent. Improvements in engine power, fuel economy, and emissions are achieved when the composition is added to gasoline.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: August 4, 1987
    Assignee: Wynn Oil Company
    Inventors: Marcel Vataru, Thomas A. Schenach
  • Patent number: 4011166
    Abstract: Novel synthetic hydrocarbon oils prepared from benzene and olefins and possessing properties uniquely suitable for automobile crankcase lubricants are described.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: March 8, 1977
    Assignee: Bray Oil Company
    Inventor: Thomas A. Schenach