Claims
- 1. Bottle filling apparatus comprising:
- a tank for containing the liquid for filling the bottle and a pressurized gas over the liquid,
- a filling device having a gas delivery and return tube for delivering gas from said tank to a bottle which is coupled to said device to be filled and for returning the as from the bottle to said tank when the gas is displaced by said liquid being admitted to the bottle, said tube having a lower end for extending into said bottle to establish the level to which said bottle is filled with liquid,
- a valve in said gas delivery and return tube and means for controlling said valve to open for delivering said gas to said bottle and to close when the bottle is filled to said level such that any liquid draining into the bottle after closure is excess,
- said filling device having a liquid supply valve and a liquid passageway controlled by said supply valve to conduct liquid from said tank to said bottle when said supply valve opens concurrently with the pressure in said tank becoming equal tot he gas pressure in said bottle,
- a chamber having an internal gas pressure which is lower than the pressure in said tank,
- a conduit having an inlet in communication with the gas in said tank and an outlet in communication with said liquid passageway and there is a duct between said passageway and said chamber having the lower gas pressure,
- a fill level correction valve in said conduit and means for controlling said correction valve to open momentarily after said liquid supply valve i closed to allow conduction of gas from said tank to the liquid passageway and bottle for the gas to propel said excess of liquid through said duct to said chamber.
- 2. The apparatus according to claim 1 including:
- a shut-off valve in said conduit, said means for controlling said fill level correction valve including means for opening said shut-off valve simultaneously with opening of said level correction valve for a predetermined short period of time.
- 3. The apparatus according to claim 2 including a relief valve having an outlet in communication with the atmosphere and an inlet coupled to said conduit between said shut-off valve and said liquid passageway.
- 4. The apparatus according to claim 2 including a vacuum chamber, a vacuum valve and means for controlling said valve, said valve being connected to said conduit between said shut-off valve and said liquid passageway.
- 5. The apparatus according to any one of claims 1 or 2 including:
- a centering bell by which the bottle is coupled to aid filling device for being filled and a member guided for moving vertically, said centering bell being fastened to said member for being moved upwardly in response to a bottle being raised into coupling relationship with said bell,
- a safety valve installed in said conduit and operable to an open condition by upward movement of said member resulting from raising said bottle into coupling relation with entering bell.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3825093 |
Jul 1988 |
DEX |
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Parent Case Info
This is a divisional of copending application Ser. No. 07/380,153 filed on July 14, 1989, now Pat. No. 4,989,650.
US Referenced Citations (10)
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Divisions (1)
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Number |
Date |
Country |
Parent |
380153 |
Jul 1989 |
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