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:
Sep. 12, 1989
Filed:
Jan. 20, 1988
Robert R Raber, Los Alamitos, CA (US);
Farr Company, El Segundo, CA (US);
Abstract
An interlocking wedge for pleated paper filter elements of the type having a plurality of pleated paper filter panels secured in a frame in a zig-zag configuration with plural apexes adjacent both the upstream and downstream ends of the frame forming plural wedge shaped air inlet and outlet spaces and a plurality of elongated V-shaped spacing wedges disposed in the downstream wedge shaped air outlet spaces adjacent the panels wherein the downstream end of each of the wedges extends transversely through one of the outlet openings in the downstream end of the frame and define recessed areas so as to provide an interference fit between said portions of the wedges in the downstream end of the frame to interlock the wedges with the frame and thereby prevent lateral separation of the wedges with respect to the frame upon the element being subject to uneven loading.