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:
Jun. 09, 1981
Filed:
Feb. 21, 1980
Applicant:
Inventors:
John R Moses, Annapolis, MD (US);
Adolph Fram, Baltimore, MD (US);
Assignee:
Fram-Israelson Enterprises, Baltimore, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210168 ; 210180 ; 210436 ; 2104165 ; 196 461 ; 196115 ;
Abstract
A lubricating oil filter-refiner for internal combustion engines includes an evaporation chamber with an array of relatively thin, corrugated plates for forming a plurality of running oil films from which volatile contaminants evaporate. In order to enhance its efficiency, the evaporation chamber is connected to a vacuum source such as the air intake of an engine.