Pneumatic material alarm

Details Pneumatic material alarm Pneumatic material alarm

1990-05-04

1991-10-08

Huppert, Michael S.

Dispensing

With recorder, register, indicator, signal or exhibitor

Plural

222 31, 222638, 116 4, 116 624, 116292, G01D 1310

Patent

active

050546538

ABSTRACT:
A system including a nonelectrical sensor for sensing the position of a needle of a gauge as it moves along a path and providing the sensed nonelectrical signal to a nonelectrical annunciator for annunciating when the needle is not at a predetermined position. The sensor is adjustably mounted with respect to the path of the needle by mounting the sensor to an adjustable transparent face plate of the gauge. A range portion is provided on a standard needle. A nonelectrical flush alarm includes a sensor to sense that the pump of a spraying or dispensing system is operating. If this sensor does not provide a signal to a timer for a preset period, the timer will produce a timed out signal which will be annunciated by an annunciator. .3

REFERENCES:
patent: 2175129 (1939-10-01), Rolfson
patent: 2624306 (1953-01-01), Hatke
patent: 2754788 (1956-07-01), Sperry
patent: 3269352 (1966-08-01), Van Winkle
patent: 3375718 (1968-04-01), Robinson et al.
patent: 3946900 (1976-03-01), DuBrueler, Jr.
patent: 4240372 (1980-12-01), Davis
patent: 4407431 (1983-10-01), Hutter, III
patent: 4475665 (1984-10-01), Norton
Venus Gusmer, "Materials Monitoring Systems", 6th Edition, 1989, p. 118.

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