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. 07, 1978
Filed:
Aug. 10, 1976
Applicant:
Inventor:
Rainer Rohlig, Radevormwald, DT;
Assignee:
Sintermetallwerk Krebsoge GmbH, Radevormwald, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2104 / ; 210496 ; 210510 ;
Abstract
A filter cartridge comprises a body of sintered material having a star-shaped profile and a substantially constant wall thickness. The body has a folded or corrugated configuration with the corrugations extending longitudinally parallel to the axis or along a helix or screw-thread pattern. The ribs or corrugations can be symmetrical about axial planes of the body and, in an embodiment of the invention, are parallel thereto.