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:
Apr. 28, 1981
Filed:
Oct. 10, 1979
Walter F Isley, Muskegon, MI (US);
Joseph L Dodd, Muskegon, MI (US);
Teledyne Industries, Inc., Los Angeles, CA (US);
Abstract
A device is provided for detecting the presence of solid impurities within a pressurized fluid. The device comprises a housing having a fluid passageway formed therein. One end of the fluid passageway is open to the pressurized fluid while the other end of the fluid passageway is open to a low pressure fluid region via a restricted port. A filter strip dispensed from a filter strip magazine is disposed across and obstructs the fluid flow through the passageway at a point intermediate its ends so that the filter strip removes solid or liquid particles from fluid flowing through the passageway. A differential pressure sensing means, such as a differential pressure transducer, communicates with the fluid passageway and detects the differential pressure across the filter strip. An increase of fluid pressure sensed by the differential pressure sensing means is indicative of a clogged filter strip which, in turn, indicates the presence of solid impurities within the pressurized fluid. Appropriate indicating means are coupled to the differential pressure sensing means to provide a signal upon the occurrence of a clogged condition of the filter strip.