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. 03, 1989
Filed:
Mar. 25, 1988
Jerry R Ellis, Visalia, CA (US);
Cambridge Filter Corporation, Syracuse, NY (US);
Abstract
An air filter of the accordion-pleated type with successive media pleats providing substantially parallel walls held in spaced relation by corrugated spaces and sealed within a square or rectangular frame. The spacers which separate the media in the upstream direction are of higher amplitude than the spacers separating the media walls on the downstream side. The upstream spacers are preferably about 2 to 21/2 times greater in amplitude than the downstream spacers. The filters are particularly advantageous in applications where the loading or dust collection rate is accelerated and the final pressure drop is uncommonly high. Dust holding capacity is significantly increased over similar, prior art filters having equal spacing of the media walls in the upstream and downstream directors.