Pneumatic material alarm
First Claim
1. A non-electrical gauge alarm comprising:
- a gauge having a needle movable along a path in response to an input;
a non-electric sensor means for sensing a predetermined position of said needle;
adjustment means for variably adjusting a mounting of said sensor means relative to said path of said needle to determine said predetermined position; and
annunciator means for annunciating when said needle is not at said predetermined position as sensed by said sensor means.
1 Assignment
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Accused Products
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
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Citations
30 Claims
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1. A non-electrical gauge alarm comprising:
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a gauge having a needle movable along a path in response to an input; a non-electric sensor means for sensing a predetermined position of said needle; adjustment means for variably adjusting a mounting of said sensor means relative to said path of said needle to determine said predetermined position; and annunciator means for annunciating when said needle is not at said predetermined position as sensed by said sensor means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A non-electrical material alarm comprising:
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a gauge having a needle movable along a path in response to an input indicating material flow rate from a dispensing system; first non-electric sensor means for sensing a predetermined position of said needle; adjustment means for variably adjusting a mounting of said first sensor means relative to said path of said needle to determine said predetermined position; and first annunciator means for annunciating when said needle is not at said predetermined position as sensed by said first sensor means. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A non-electrical material alarm comprising:
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a gauge having a needle movable along a path in response to an input of material flow rate of a dispensing system; first non-electric sensor means for sensing a predetermined position of said needle; second sensor means for sensing that material is being dispensed by said dispensing system; timer means for providing a timed-out signal when a predetermined period of time has expired since said dispensing system has stopped dispensing material as sensed by said second sensor means; and first annunciator means for annunciating when said needle is not at said predetermined position as sensed by said first sensor means or occurrence of said timed-out signal. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A non-electrical flush alarm comprising:
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a non-electric sensor means for sensing that material is being dispensed by a dispensing system; non-electric timer means for providing a timed-out signal when a predetermined period of time has expired since said dispensing system has stopped dispensing material as sensed by said sensor means; and annunciator means for annunciating said timed-out signal. - View Dependent Claims (27, 28, 29, 30)
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Specification