Signals and indicators – Indicators – Fluid flow
Patent
1986-08-05
1988-05-31
Cochlinski, Jr., William A.
Signals and indicators
Indicators
Fluid flow
116267, 116DIG25, 116 70, 55274, 55DIG34, G01L 1912
Patent
active
047473649
ABSTRACT:
A flow rate sensor for use with an air filter channels air flow to energize an audible sound generator upon development of an air pressure differential within the sensor above a settable threshold, which pressure differential results from a reduction in the air flow rate through the air filter due to clogging of the air filter by filtered matter.
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Cochlinski, Jr. William A.
Filter Alert Corporation
Worth W. Morris
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