Apparatus and system for filling one or more containers with a liquid to a predetermined level
First Claim
1. An apparatus for filling a container with a liquid to a predetermined level comprising:
- main valve means for controlling the supply of liquid to the container;
fluid amplifier means for receiving at least a portion of the liquid flowing through said main valve means and for generating a pressure signal in response to the flow of said liquid through the main valve means only until the liquid within said container reaches said predetermined level; and
pilot valve means for maintaining the main valve means open in the presence of said pressure signal and for closing said main valve means in the absence of said pressure signal.
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Accused Products
Abstract
An apparatus and system for filling containers with a required liquid to a predetermined level are disclosed. The apparatus includes a main valve means for controlling the flow of liquid through the apparatus and into the container; a fluid amplifier means for receiving at least a portion of the liquid from the main valve means and for generating a pressure signal until such time as the liquid within the container reaches the predetermined level; and pilot valve means for maintaining the main valve means open in the presence of the pressure signal from the fluid amplifier and for closing the main valve means in the absence of the pressure signal. The system includes the aforesaid apparatus together with liquid supply conduit and valve means.
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Citations
15 Claims
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1. An apparatus for filling a container with a liquid to a predetermined level comprising:
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main valve means for controlling the supply of liquid to the container; fluid amplifier means for receiving at least a portion of the liquid flowing through said main valve means and for generating a pressure signal in response to the flow of said liquid through the main valve means only until the liquid within said container reaches said predetermined level; and pilot valve means for maintaining the main valve means open in the presence of said pressure signal and for closing said main valve means in the absence of said pressure signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for simultaneously filling a plurality of containers with a liquid to a predetermined level for each container, said apparatus comprising:
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a liquid supply conduit; a liquid supply valve in said conduit; and a plurality of automatically closing container filling means, each such container filling means being associated with one of said containers and including main valve means for controlling the supply of liquid to the container;
fluid amplifier means for receiving at least a portion of the liquid flowing through said main valve means and for generating a pressure signal in response to the flow of said liquid through the valve means only until the liquid within said container reaches said predetermined level; and
pilot valve means for maintaining the main valve means open in the presence of said pressure signal and for closing said main valve means in the absence of said pressure signal.
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15. A fluid amplifier adapted for sensing the level of a liquid in a container and for generating a differential in pressure signal in response to the static presence of the liquid level at a predetermined level, comprising:
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inlet means for developing a fluid power stream; outlet means spaced from said inlet means and including a first outlet for receiving at least a portion of said fluid power stream and a second outlet having its lowermost terminus positioned at said predetermined level, said first outlet generating a pressure signal in response to receipt of said portion of said power stream; a guidewall extending adjacent the longitudinal axis of said fluid power stream from said inlet means toward said outlet means and including an outwardly diverging portion adjacent said outlet means; and an interior slot in said guidewall adjacent said inlet means and remote from said outlet means, whereby when the liquid level within said container reaches and covers the lowermost terminus of said outlet means second outlet, said fluid power stream is diverted along said diverging guidewall and away from said outlet means first outlet thereby terminating said pressure signal.
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Specification