Excessive gas flow detector

Details Excessive gas flow detector Excessive gas flow detector

1986-06-04

1987-05-26

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

324133, 340611, 340620, G08B 2100

Patent

active

046689435

ABSTRACT:
An excessive gas flow detector has a probe in which an electrode and immediately surrounding part of an insulating sleeve are protected by a shielding ring surrounding the electrode from direct impingement of spray carried by gas sweeping down into a well under excessive gas flow conditions. A test unit for plugging into a socket of the detector gives an indication on light emitting diodes of whether there is an excessive or normal gas flow through the detector.

REFERENCES:
patent: 654372 (1900-07-01), West
patent: 2808580 (1957-10-01), Fuller
patent: 3150360 (1964-09-01), Stenzel
patent: 3425385 (1969-02-01), Broad, Jr.
patent: 3524178 (1970-08-01), Stratton
patent: 3689908 (1972-09-01), Ray
patent: 3880110 (1975-04-01), Loesch et al.
patent: 4065675 (1977-12-01), Gold
patent: 4077427 (1978-03-01), Rosan, Jr. et al.
patent: 4486744 (1984-12-01), Pratt et al.
patent: 4496906 (1985-01-01), Clack

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