Level detector for a hot melt system
First Claim
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1. A level detection system for a hot melt unit, comprising:
- a scale having a load cell, the load cell configured to be placed beneath a tank of a hot melt unit;
a controller having an indicator configured to alert an operator when a weight of the hot melt unit detected by the load cell has decreased by a user-selected maximum allowable amount; and
a user interface configured to allow the operator to select the maximum allowable amount, wherein the user interface has a reset button for the operator to reset the indicator.
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Abstract
An illustrative example level detector for a hot melt system includes a scale having a load cell and a controller having an indicator configured to alert an operator when a weight detected by the load cell has decreased by a user-selected maximum allowable amount.
24 Citations
17 Claims
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1. A level detection system for a hot melt unit, comprising:
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a scale having a load cell, the load cell configured to be placed beneath a tank of a hot melt unit; a controller having an indicator configured to alert an operator when a weight of the hot melt unit detected by the load cell has decreased by a user-selected maximum allowable amount; and a user interface configured to allow the operator to select the maximum allowable amount, wherein the user interface has a reset button for the operator to reset the indicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A hot melt system, comprising:
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a melt unit having a melt tank; a scale having a load cell arranged beneath the melt unit; and a controller having an indicator configured to alert an operator when the scale detects a weight of the melt unit has decreased by a user-selected maximum allowable amount; and a user interface configured to allow the operator to select the maximum allowable amount, wherein the user interface has a reset button for the operator to reset the indicator. - View Dependent Claims (10, 11, 12, 13)
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14. A method of maintaining a desired fill level in a hot melt tank using a level detection system having a scale situated to detect a weight of a hot melt tank, the method comprising:
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setting a tank full weight; determining a user-selected desired minimum weight of the hot melt tank; periodically measuring the weight of the hot melt tank with the scale; and alerting an operator when the weight of the hot melt tank falls below the desired minimum weight, wherein alerting the operator comprises sounding an audible alarm. - View Dependent Claims (15, 16, 17)
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Specification