Liquid delivery system
First Claim
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1. An apparatus for delivering a liquid to a hopper, the apparatus comprising:
- A heated liquid reservoir;
a hopper;
a liquid level sensor structured to measure a level of liquid within the hopper;
a valve operatively connected to the liquid level sensor; and
a heated liquid flow path in communication with the liquid reservoir and the hopper, the valve being structured to selectively open and close the liquid flow path;
whereby the sensor causes the valve to permit liquid to flow into the hopper upon liquid within the hopper reaching a first predetermined liquid level, and resists any flow of liquid into the hopper upon the liquid level within the hopper reaching a second predetermined level.
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Abstract
A liquid supply system supplies liquid to a hopper upon liquid within the hopper reaching a low liquid level. The liquid may be heated within a liquid reservoir and within a liquid conduit between the reservoir and the hopper.
48 Citations
41 Claims
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1. An apparatus for delivering a liquid to a hopper, the apparatus comprising:
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A heated liquid reservoir; a hopper; a liquid level sensor structured to measure a level of liquid within the hopper; a valve operatively connected to the liquid level sensor; and a heated liquid flow path in communication with the liquid reservoir and the hopper, the valve being structured to selectively open and close the liquid flow path;
whereby the sensor causes the valve to permit liquid to flow into the hopper upon liquid within the hopper reaching a first predetermined liquid level, and resists any flow of liquid into the hopper upon the liquid level within the hopper reaching a second predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of delivering a liquid to a hopper, the method comprising:
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providing a liquid reservoir, a hopper, and a liquid flow path from the liquid reservoir to the hopper; measuring a level of liquid within the hopper; dispensing liquid into the hopper when the level of liquid falls below the first predetermined level until the level of liquid reaches a second predetermined level; and wherein the liquid comprises a pharmaceutically active agent. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification