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:
Nov. 29, 1983
Filed:
Feb. 22, 1982
Wayne H Pitcher, Jr, Big Flats, NY (US);
Corning Glass Works, Corning, NY (US);
Abstract
The filter of honeycomb construction has a matrix of thin, interconnected walls which define a multiplicity of cells and which have interconnected open porosity of a volume and size sufficient to enable the fluid to flow completely across the thin walls in their narrow dimensions between adjoining cells and through the thin walls in their longer dimensions between adjoining or neighboring cells and to restrict the particulates in the fluid from flowing either completely across or through any of the thin walls, and has the cells divided into an inlet group and an outlet group and providing the inlet group of cells with substantially greater desirably about 25% or more greater, collective thin wall surface area than is provided to the outlet group of cells. Portions of the inlet group cells adjoin one another and share in common the same thin wall. Method of fabricating the filter comprises providing the matrix, and closing oen end of each of the inlet and outlet group cells, the closed ends of the inlet group cells being at an end face of the matrix opposite to the other end face thereof at which occur the closed ends of the outlet group cells, to provide the inlet group of cells with the aforesaid substantially greater collective thin wall surface area.