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:
May. 27, 1997
Filed:
Jun. 07, 1995
Louis D Caracciolo, Jr, Atco, NJ (US);
Infinity Research and Development, Lenexa, KS (US);
Abstract
The present invention relates to a filter unit, and a filtering system using the filter unit, comprising a housing having a longitudinal axis and an inlet and outlet for fluid containing solid contaminants and a back-flush inlet and back-flush outlet for cleansing fluid. This housing contains a substantially cylindrical filter element which has a longitudinal axis coincident with the longitudinal axis of the housing. The filter element has disposed within it a conduit, adapted to be opened to atmospheric discharge, having a longitudinal axis coincident with the longitudinal axis of the filter element. The conduit also has disposed along its surface cleansing members, which extend from the conduit to the filter element and have apertures to allow the cleansing fluid to flow through the members and into the conduit. The filter unit rotates the conduit and/or the filter element about its longitudinal axis and detects when the degree of contamination of the filter unit in service reaches a level at which the flow of fluid containing solid contaminants through the filter unit drops below an effective level. The filter unit also comprises closes the inlet and outlet for fluid containing solid contaminants and opens the inlet and outlet for cleansing fluid to atmospheric discharge when the degree of contamination reaches that level.