Pneumatic material alarm
AssigneeGraves Spray Supply, Inc.
InventorJohn G. McNab
Life of this patent
Estimating the term…
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
Claims30
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.
A non-electrical material alarm comprising:
- 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.
A non-electrical material alarm comprising:
- 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.
A non-electrical flush alarm comprising:
- 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.
Dependencies are inferred from the claim text.