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:
May. 07, 1991
Filed:
Nov. 14, 1989
Applicant:
Inventor:
Lawrence Smith, Iowa, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210455 ; 210457 ; 210487 ; 2104931 ; 55497 ;
Abstract
An improved fluid filter medium, including a fabric member having a plurality of folds that are seamed at the top and bottom to form a fabric sleeve with pockets, such pockets being configured to enclose the leaves of a filter element frame. A tubular seal is seemed to each end of the fabric sleeve and filled with a resilient material to form a compressible seal. Each tubular seal is configured to be compressed between the central cylindrical perforated core of the filter element frame and a sealing plate or flange such that, upon compression, the tubular seal forms a seal between the sealing plates or flanges and the fabric sleeve.