Patents by Inventor Steven R. Slanker

Steven R. Slanker 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: 4632770
    Abstract: A water-in-oil emulsion lubricant concentrate useful in drawing and ironing of various metals is described. The active ingredients are a monohydric alcohol ester of polycarboxylic acids. Included in the concentrates are emulsifying agents and optionally, corrosion inhibitors.
    Type: Grant
    Filed: January 22, 1986
    Date of Patent: December 30, 1986
    Assignee: Nalco Chemical Company
    Inventor: Steven R. Slanker
  • Patent number: 4260502
    Abstract: A synthetic metal working lubricant characterized by an absence of mineral oil but which is water immiscible and dispersible in water to form oil-in-water emulsions in which said lubricant is in the discontinuous phase is prepared using polybutenes, also referred to as polyisobutylenes, having an average molecular weight within the range of approximately 320-610 constituting a principal ingredient in combination with polyethylene glycol mono- and/or diesters of higher carboxylic acids or mixtures of such acids containing 8 to 22 carbon atoms in an acyclic or branched carbon chain and/or higher fatty acids containing 8-22 carbon atoms together with optional corrosion inhibiting agents which are effective in inhibiting corrosion of ferrous and non-ferrous metals to which the lubricant is applied for the purpose of working such metals.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: April 7, 1981
    Assignee: Nalco Chemical Company
    Inventor: Steven R. Slanker