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:
Aug. 21, 1990
Filed:
Mar. 24, 1989
Applicant:
Inventor:
Giorgio Girondi, Mantova, IT;
Assignee:
Universal Filter Italiana S.p.A., Verona, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210335 ; 210342 ; 210437 ; 210440 ; 210489 ; 210492 ; 210D / ;
Abstract
A disposable oil filter unit with triple filtration characterized by comprising, within a closed cup-shaped container (1), two filter cartridges (3) and (2) which filter radially from the outside towards the center and are disposed in parallel with regard to the traversing oil flow, and of which the first filter cartridge (3), which is of finer porosity, is surrounded by a third concentric cartridge (33) disposed in series with filter cartridge and having a coarser porosity than the second cartridge.