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. 23, 1999
Filed:
Dec. 05, 1996
Andre Grangeon, Valreas, FR;
Philippe Lescoche, Favcon, FR;
Societe Anonyme: T.A.M.I. Industries, Nyons, FR;
Abstract
The invention relates to an inorganic filter element comprising: a rigid inorganic porous support; and channels classifiable into n categories where n.gtoreq.2, with all of the channels in each category having identical right cross-section, identical hydraulic diameter, and identical equivalent diameter, the shapes of the right cross-sections of the channels differing between categories. According to the invention, the channels of the various categories have: hydraulic diameters such that the ratios between any two hydraulic diameters lie in the range 0.75 to 1.3; right cross-sectional areas such that the ratios between any two right cross-sectional areas lie in the range 0.75 to 1.3; and equivalent diameters such that the ratio of the equivalent diameter over the hydraulic diameter of each channel is less than or equal to 2.