Measuring and testing – With fluid pressure – Porosity or permeability
Patent
1979-10-10
1981-04-28
Goldberg, Gerald
Measuring and testing
With fluid pressure
Porosity or permeability
73 61R, 210387, G01N 1500
Patent
active
042638054
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.
REFERENCES:
patent: 1844611 (1932-02-01), Spackman
patent: 2675697 (1954-04-01), Quynn et al.
patent: 3167949 (1965-02-01), Stenzel et al.
patent: 3672507 (1972-06-01), Paull, Jr.
patent: 3912632 (1975-10-01), Winzen
patent: 4117717 (1978-10-01), Isley
Dodd Joseph L.
Isley Walter F.
Goldberg Gerald
Roskos Joseph W.
Teledyne Industries Inc.
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