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:
Feb. 11, 1997
Filed:
Oct. 05, 1995
Brian K Peterson, Yardley, PA (US);
Andrew Jackson, Pennington, NJ (US);
Mobil Oil Corporation, Fairfax, VA (US);
Abstract
A multi-phase lubricant composition useful in a process for lubricating one or more operating components which are exposed to an operating condition change is described. Under a condition at which the lubricants are at least partially miscible, the phases combine to provide a lubricant having a physical property which is modified to be more appropriate for lubricating under the new condition, such as a higher viscosity. Typically the lubricants are at least partially miscible at an elevated temperature and at least partially immiscible at lower temperatures. A density difference between the phases is preferred for ease of separating the phases. The composition is preferably a combination of a hydrocarbon oil and a polyalkylene glycol such as polypropylene glycol.