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:
Mar. 22, 1988
Filed:
Sep. 17, 1986
Donald I Thornton, Warwick, RI (US);
Allied Corporation, Morristown, NJ (US);
Abstract
A fluid filter is disclosed which consists of a stack of discs which are formed form an air laid, nonwoven batt of randomly arrayed fibers. The batt includes a thermoplastic component to give the disc a self-supporting stiffness when molded. Each of the discs have radially extending contaminant collecting surfaces on the opposite sides thereof, and each have axially offset portions circumscribing the inner and outer diameters of the disc. Alternate disc in the stack are inverted, so that the axially offset portions on the inner and outer circumferences of the disc are brought into registration with one another. Accordingly, radially extending flow paths are defined between the disc to communicate fluid toward and away from the contaminant collecting surfaces. Ribs are provided on the contaminant collecting surfaces to maintain separation of the disc under dynamic flow conditions.