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:
Jan. 07, 1997
Filed:
Jul. 07, 1995
Applicant:
Inventors:
Dean M Pruette, Blacksburg, VA (US);
Stephen E Larson, Blacksburg, VA (US);
Assignee:
Dollinger Corporation, Rich Creek, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2104931 ; 2104932 ; 2104935 ; 55491 ; 55492 ; 55498 ; 55521 ;
Abstract
A fluid filter is of the kind having a tubular flow-through core surrounded by a pleated wire cage around which a filter medium in the form of a pleated bag is mounted with the pleats in the bag extending into and around the pleats of the wire cage. The filter medium is formed by a sheet of filter material having draw-string ends which fold over and are tied down on opposite ends of the cage. Sealing assemblies which eliminate the need for conventional gaskets are used to seal the folded over and tied down ends of the filter medium. The arrangement facilitates the assembly, removal and re-use of filter media.