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.

Date of Patent:
Nov. 05, 1996

Filed:

Apr. 08, 1996
Applicant:
Inventors:

Norman P Butler, San Diego, CA (US);

James Cheng, San Diego, CA (US);

Li K Pui, San Diego, CA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210223 ; 335303 ;
Abstract

A housing has a magnetic block therein with (preferably) an exposed side. The housing has (preferably) an integral, annular, curved, elastomer skirt forming a suction cup. The suction cup is used to attach the magnetic block to the external side of an oil passageway, e.g. an engine oil filter cartridge, such that the exposed side abuts, or nearly abuts, the passageway, the exposed side being a centralized base of the suction cup. The magnetic lines of force emanating from the magnet penetrate beyond the wall and attract magnetically attractable particles from oil passing thereby. The particles are held against the side opposite the magnet.


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