Patents by Inventor Eugene R. Zehler

Eugene R. Zehler 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).

  • Blended polyol ester lubricants for refrigerant heat transfer fluids
    Patent number: 5820777
    Abstract: From not more than three blending stocks, it is possible to prepare a wide variety of mixtures of esters of hindered polyhydric alcohols that are especially valuable lubricants for chlorine-free fluorocarbon refrigerant heat transfer fluids, particularly Refrigerant 134a (1,1,1,2-tetrafluoroethane).
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: October 13, 1998
    Assignee: Henkel Corporation
    Inventors: Nicholas E. Schnur, Eugene R. Zehler
  • Stamping lubricants
    Patent number: 5744432
    Abstract: Water-based stamping lubricants are comprised of: (1) water; (2) a polyester that is water-soluble or readily emulsifiable made by reacting one or more dicarboxylic acids and a polyalkylene glycol; (3) one or more ethoxylated alkylalcohols; (4) the salt of a phosphate ester of an ethoxylated alkyl alcohol; (5) an alkanolamine.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: April 28, 1998
    Assignee: Henkel Corporation
    Inventors: Jeff A. Barnhorst, Roger H. Garst, Ronald H. Gordon, Eugene R. Zehler
  • Stamping lubricants
    Patent number: 5569406
    Abstract: Stamping lubricant compositions which exhibit improved lubricity and methods for reducing friction and wear utilizing said stamping lubricant compositions.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: October 29, 1996
    Assignee: Henkel Corporation
    Inventors: Jeff A. Barnhorst, Roger H. Garst, Ronald H. Gordon, Eugene R. Zehler
  • Lubricant compositions having improved anti-deposition properties comprising a polyalkylene oxide-modified silicone oil
    Patent number: 5047159
    Abstract: Lubricant compositions having improved anti-deposition properties through the addition of effective amounts of polyalkyleneoxide-modified silicone oils. The silicone oils have pendant polyether groups bonded to the silicon chain by non-hydrolyzable Si-C bonds. The silicone oils have molecular weights in the range of about 200 to about 5000 .sup.g /mole.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: September 10, 1991
    Assignee: Henkel Corporation
    Inventor: Eugene R. Zehler
  • Lubrication for refrigerant heat transfer fluids
    Patent number: 5021179
    Abstract: Esters and mixtures of esters of polyhydric alcohols, e.g., of pentaerythritol, in which at least 22 number percent of the acyl groups in the esters are either branched or contain no more than six carbon atoms, are effective lubricants and/or lubricant base stocks for chlorine-free fluorocarbon refrigerant heat transfer fluids, particularly for chlorine-free heat transfer fluids such as Refrigerant 134a (1,1,1,2-tetrafluoroethane).
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: June 4, 1991
    Assignee: Henkel Corporation
    Inventors: Eugene R. Zehler, Nicholas E. Schnur
  • Mist lubrication process
    Patent number: 4601840
    Abstract: An improved mist lubrication process whereby excellent lubrication and misting properties are obtained utilizing synthetic ester mist lubricants derived from specific polyol esters, trimellitate esters and dimer diesters and a mixture of polyisobutylene polymers having different molecular weights is provided.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: July 22, 1986
    Assignee: National Distillers and Chemical Corp.
    Inventors: Eugene R. Zehler, Clark J. Flake
  • Mist lubricant compositions
    Patent number: 4589990
    Abstract: Improved mist lubricant compositions containing specific synthetic esters and a mixture of polyisobutylene polymers having different molecular weights are provided. Synthetic esters employed for the compositions are polyol esters, trimellitate esters, and polymeric fatty acid esters.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: May 20, 1986
    Assignee: National Distillers and Chemical Corporation
    Inventors: Eugene R. Zehler, Bruce J. Beimesch