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. 11, 2002
Filed:
Oct. 19, 2000
Applicant:
Inventor:
Charles Rey, La Ferte Bernard, FR;
Assignee:
Filtrauto, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 4/610 ;
U.S. Cl.
CPC ...
B01D 4/610 ;
Abstract
A filter cartridge has a tubular filter element made from a porous, flexible sheet forming an annular succession of pleats having axial ridges, in the form of vanes all curved in a same circumferential direction, each vane comprising an upper face and a lower face. The lower face and upper face of each vane has lines of least resistance forming hinges, enabling the curvature of the vanes to be better controlled.