US4613060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-gas operated dispensing means for fluids
Assignee: Wilh Quester Maschinenfabrik GmbH
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Filing: 1984-12-17
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Granted: 1986-09-23
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Expires: 2004-12-17
Abstract
Abstract A gas pressure operated dispensing method and apparatus for dispensing fluids including a first container as a primary fluid source, a second container as a reserve fluid source, a first gas line connected to the first container and a second gas line connected to the second container, a gas pressure source connected to the first and second gas lines for supplying a pressurized gas thereto, a first change over valve and a second change over valve disposed in the first gas line and the second line, respectively, a supply line for introducing a fluid into the second container, a discharge line for discharging a fluid from the first container, a fluid line communicating with the supply line and the second container at one end and the discharge line and the first container at the other end, the fluid line containing a third valve, and vent line selectively connectible to the second gas line through the second change over valve when the gas pressure source is separated from the second gas line by the second change over valve.
Inventors
- 👤 Hans-Joachim Ulbrich
- 👤 Horst Quester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:23
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/72; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/4673; Y10T137/469; Y10T137/4841
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
220 words
A gas pressure operated dispensing system for dispensing fluids, which comprises: a first fluid container; a second fluid container; means for maintaining a pressure difference between said first and second fluid containers; a first gas line connected to the first container and a second gas line connected to the second container; gas pressure source means connected to said first and second gas lines, for supplying a pressurized gas thereto; first change over valve means and second change over valve means disposed in said first gas line and said second line, respectively, for controlling gas flow through said first and second gas lines; supply line means for introdicuing a fluid into said second container; discharge line means for discharging a fluid from said first container; fluid line means for communicating with the supply line means an outlet of, the second container, the discharge line means and an outlet of the first container, said fluid line means containing a third valve means disposed between the outlet of said second container and the outlet of said first container; and vent line means, selectively connectible to said second gas line through said second change over valve means when said gas pressure source is separated from said second gas line by said second change over valve means for venting said gas line to the atmosphere.
Claim 2
Dependent Claim
220 words
A gas pressure operated dispensing system for dispensing fluids, which comprises: a first fluid container; a second fluid container; means for maintaining a pressure difference between said first and second fluid containers; a first gas line connected to the first container and a second gas line connected to the second container; gas pressure source means connected to said first and second gas lines, for supplying a pressurized gas thereto; first change over valve means and second change over valve means disposed in said first gas line and said second line, respectively, for controlling gas flow through said first and second gas lines; supply line means for introdicuing a fluid into said second container; discharge line means for discharging a fluid from said first container; fluid line means for communicating with the supply line means an outlet of, the second container, the discharge line means and an outlet of the first container, said fluid line means containing a third valve means disposed between the outlet of said second container and the outlet of said first container; and vent line means, selectively connectible to said second gas line through said second change over valve means when said gas pressure source is separated from said second gas line by said second change over valve means for venting said gas line to the atmosphere.
Claim 3
Dependent Claim
29 words
The gas pressure operated dispensing system of claim 1, wherein said means for maintaining a pressure difference comprises a positional height difference between said first and second fluid containers.
Claim 4
Dependent Claim
38 words
The gas pressure operated dispensing system of claim 2, wherein the first and second gas lines of said containers are interconnected when the fluid line means communicating with the second container is connected to the discharge line means.
Claim 5
Dependent Claim
23 words
The gas pressure operated dispensing system of claim 1, wherein additional conduit means are provided for connecting the first and second gas lines.
Claim 6
Dependent Claim
19 words
The gas pressure operated dispensing system of claim 4, wherein the additional conduit means is a nonthrottled gas line.
Claim 7
Dependent Claim
23 words
The gas pressure operated dispensing system of claim 1, wherein an adjustable throttle device is provided in the first and second gas lines.
Claim 8
Dependent Claim
40 words
The gas pressure operated dispensing system of claim 1, wherein a valve control means is provided for controlling all of said valve means, said valve control means being responsive to the fluid levels prevailing in the first and second container.
Claim 9
Dependent Claim
17 words
The gas pressure operated dispensing system of claim 7, wherein said valve control means is a timer.
Claim 10
Dependent Claim
18 words
The gas pressure operated dispensing system of claim 7, wherein said valve control means is a level control.
Claim 11
Independent Claim
142 words
A method for dispensing fluids utilizing two containers holding fluids, a first conduit means for supplying gas pressure to said containers and a second conduit means for supplying and discharging a fluid to and from said containers, which comprises the steps of: (1) applying gas pressure to a first container to force said fluid from the container, through the discharge line and out of the system into the environment; (2) applying gas pressure to a second container to force said fluid from the second container to fill the first container, (3) applying gas pressure to the first container to force fluid from said first container, through the discharge line, and out of the system into the environment simultaneously with step (2); and (4) venting the second container out of the system into the environment while supplying a fluid to the second container.
Claim 12
Independent Claim
142 words
A method for dispensing fluids utilizing two containers holding fluids, a first conduit means for supplying gas pressure to said containers and a second conduit means for supplying and discharging a fluid to and from said containers, which comprises the steps of: (1) applying gas pressure to a first container to force said fluid from the container, through the discharge line and out of the system into the environment; (2) applying gas pressure to a second container to force said fluid from the second container to fill the first container, (3) applying gas pressure to the first container to force fluid from said first container, through the discharge line, and out of the system into the environment simultaneously with step (2); and (4) venting the second container out of the system into the environment while supplying a fluid to the second container.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-22 | 1990-03-24 | 1990-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-22 | 1994-03-24 | 1994-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-22 | 1998-03-24 | 1998-09-23 | $7700.00 | Window Closed / Lapsed |