Patents by Inventor James MacNeil

James MacNeil 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).

  • Lubrication process using chlorine-free lubricant
    Patent number: 5939366
    Abstract: The invention pertains to chlorine-free extreme pressure metalworking fluid additives and lies in the recognition of the improved hydrolytic stability of alkanoic acid esters of cyclohexane dimethanol and other esters embodying similar structures. The various derivatives which are effective as extreme pressure additives include those which fall within the generic description ##STR1## wherein R.sup.1 through R.sup.4 are independently selected from the group hydrogen and C.sub.1-24 hydrocarbyl groups and R.sup.5 and R.sup.6 are independently selected from the group C.sub.3-24 hydrocarbyl groups.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: August 17, 1999
    Assignee: Dover Chemical Corp.
    Inventors: James MacNeil, Donald R. Stevenson, Barbara A. Wade, Joseph C. Fette
  • Chlorine-free extreme pressure fluid additive
    Patent number: 5780400
    Abstract: The invention pertains to chlorine-free extreme pressure metalworking fluid additives and lies in the recognition of the improved hydrolytic stability of alkanoic acid esters of cyclohexane dimethanol and other esters embodying similar structures. The various derivatives which are effective as extreme pressure additives include those which fall within the generic description ##STR1## wherein R.sup.1 through R.sup.4 are independently selected from the group hydrogen and C.sub.1-24 hydrocarbyl groups and R.sup.5 and R.sup.6 are independently selected from the group C.sub.3-24 hydrocarbyl groups.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: July 14, 1998
    Assignee: Dover Chemical Corp.
    Inventors: James MacNeil, Donald R. Stevenson, Barbara A. Wade, Joseph C. Fette