Patent US3695010A successfully refreshed from Google Patents.
US3695010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank venting system
Assignee: Fiberglass Structures
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Filing: 1970-08-28
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Granted: 1972-10-03
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Expires: 1990-08-28
Abstract
Abstract The present invention relates to a system for transferring a noxious liquid such as any of the mineral acids from a source of supply under air pressure to a tank and for removing the noxious gas from the tank as the tank is filled. The gas is scrubbed to permit release of the air displaced from the tank to the atmosphere free of any noxious components. The inlet line to the tank includes valve means permitting the free flow of liquid to the tank only as long as the liquid being reduced so that air is present, a valve in the valve means seats on the outlet from the valve means to permit only a small quantity of air to pass into the tank until the air pressure on the source of supply has been relieved, the released air being passed through the scrubber.
Inventors
- 👤 James R Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:55
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; F16K24/042; F16K24/044; F16K24/046; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/3115; Y10T137/3127
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
160 words
Means for transferring a noxious liquid from a supply means to a receiving vessel comprising: a. a supply means; b. a receiving vessel; c. a gas scrubber for purifying gas ejected from the receiving vessel during its filling; d. a first conduit means connecting the supply means with the receiving vessel; e. a second conduit means connecting the receiving vessel with the gas scrubber; f. means connected to the supply means for supplying gas under pressure to the supply means to force the liquid from the supply means through the first conduit means into the receiving vessel; and g. valve means connected in the first conduit means and having inlet and outlet ports and a valve element therebetween permitting the free flow of liquid from the first conduit into the receiving vessel under full liquid flow conditions, and means including the valve element for restricting the flow of gas into the receiving vessel upon cessation of the flow of liquid.
Claim 2
Dependent Claim
160 words
Means for transferring a noxious liquid from a supply means to a receiving vessel comprising: a. a supply means; b. a receiving vessel; c. a gas scrubber for purifying gas ejected from the receiving vessel during its filling; d. a first conduit means connecting the supply means with the receiving vessel; e. a second conduit means connecting the receiving vessel with the gas scrubber; f. means connected to the supply means for supplying gas under pressure to the supply means to force the liquid from the supply means through the first conduit means into the receiving vessel; and g. valve means connected in the first conduit means and having inlet and outlet ports and a valve element therebetween permitting the free flow of liquid from the first conduit into the receiving vessel under full liquid flow conditions, and means including the valve element for restricting the flow of gas into the receiving vessel upon cessation of the flow of liquid.
Claim 3
Dependent Claim
97 words
The transfer means of claim 1, wherein said valve means has a horizontally extending casing, the casing including an inlet provided in an upper portion of the casing and an outlet provided in a lower portion of the casing, a hollow ball within the casing normally supported by fluid in the casing in an upper portion of the casing, the ball being adapted to fit over the outlet from the casing, the outlet from the casing being relieved by several narrow slots to permit gas to pass at a low rate between the ball and the outlet.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |