The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 1998
Filed:
Dec. 11, 1996
Applicant:
Inventor:
Behrooz A Khorramian, Leonia, NJ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
508444 ; 508485 ;
Abstract
Phosphorus-free and ashless high-temperature aircraft and turbo engine lubricant that contains no halogens or hazardous substances is disclosed. The phosphorus-free lubricating oil may be prepared from pentaerythritol tetraester, methylolpropane triester, or their combinations, ashless dithiocarbamate additives, a dialkydiphenylamine, an alkylphenylnaphthylamine, a triazole derivative, a rest inhibitor or metal deactivator, and an anti-foam. The use of this lubricating oil in addition to its superior wear and friction performance over the standard lubricating oil provides a safe and an environmentally benign gas turbine engine oil for aircraft and turbo engines.