Patents by Inventor Alan D. Eckard

Alan D. Eckard 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).

  • Enhanced hydrocarbon lubricants for use with immiscible refrigerants
    Patent number: 5866030
    Abstract: Fluid refrigeration compositions comprising a hydrocarbon lubricant, an immiscible refrigerant and an additive capable of reducing the interfacial tension between the hydrocarbon lubricant and refrigerant.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: February 2, 1999
    Assignee: Witco Corporation
    Inventors: Jose L. Reyes-Gavilan, Alan D. Eckard, G. Thomas Flak, Todd R. Tritcak, Leonard Aconsky
  • Reduction of enterfacial tension between hydrocarbon lubricant and immiscible liquid refrigerant
    Patent number: 5792383
    Abstract: Fluid refrigeration compositions comprising a hydrocarbon lubricant, an immiscible refrigerant and an additive capable of reducing the interfacial tension between the hydrocarbon lubricant and refrigerant.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: August 11, 1998
    Assignee: Witco Corporation
    Inventors: Jose L. Reyes-Gavilan, Alan D. Eckard, G. Thomas Flak, Todd R. Tritcak, Leonard Aconsky
  • Overbased sulfonates combined with petroleum oxidates for metal forming
    Patent number: 5439602
    Abstract: Compositions of matter comprising petroleum oxidate having a total acid number no greater than 35, and overbased calcium sulfonate having a total base number of at least about 150 and a strong total base number less than 10, which are free of or contain no more than trace amounts of carboxylic acids containing 8 or fewer carbon acids, are oil-soluble, non-gelling, and useful in metalworking compositions imparting lubricity and corrosion protection.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: August 8, 1995
    Assignee: Witco Corporaton
    Inventors: Alan D. Eckard, Igor Riff
  • Dry wire drawing lubricants based on Poly (3,5-dithio-1,2,4-thiadiazole) and Poly (2,5-dithio-1,3,4-thiadiazole)
    Patent number: 4308182
    Abstract: Dry powdered wire drawing lubricant compositions are disclosed for the most severe drafting conditions in which mixtures of polymers of Poly (3,5-dithio-1,2,4-thiadiazole) and Poly (2,5-dithio-1,3,4-thiadiazole) act synergistically with molybdenum disulfide as extreme pressure additives. The polymers of Poly(3,5-dithio-1,2,4-thiadiazole) and Poly(2,5-dithio-1,3,4-thiadiazole) can also be used as the sole extreme pressure additive in the wire drawing lubricants.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: December 29, 1981
    Assignee: Pennwalt Corporation
    Inventors: Alan D. Eckard, James P. King