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:
Jul. 04, 2000
Filed:
Jul. 09, 1998
Applicant:
Inventor:
Donald P Rigney, Belleville, IL (US);
Assignee:
Empire Comfort Systems, Inc., Belleville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210451 ; 210477 ; 210481 ; 2104973 ; 210499 ; 210455 ;
Abstract
A funnel having at least one channel or groove formed by projected ribs in the sidewalls of the funnel. The projections space the sides of a filter membrane placed inside the funnel, thereby preventing the sides of the filter insert from adhering to the sidewalls of the funnel and allowing the fluid to flow through the sides of the filter insert and into the grooves or channels that conduct the fluid to the discharge orifice of the funnel. The projected ribs are preferably a plurality of raised ribs arranged at approximately 45 degree intervals about the funnel interior surface.