US2747783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid dispensing and withdrawing apparatus
Assignee: Shell Development Co
•
Filing: 1952-07-08
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Granted: 1956-05-29
•
Expires: 1972-07-08
Abstract
No abstract record available.
Inventors
- 👤 Wooldridge James Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:29
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
APPARATUS FOR DISPENSING LIQUID INTO AND WITHDRAWING LIQUID FROM RECEPTACLES OR THE LIKE COMPRISING: A LIQUID FLOW DUCT ADAPTED TO BE CONNECTED AT ONE END THEREOF TO A SOURCE OF SAID LIQUID UNDER PRESSURE AND HAVING AT THE OTHER END THEREOF COUPLING MEANS ADAPTED TO BE CONNECTED TO SAID RECEPTABLE; A CLOSED VACUUMIZED AUXILIARY CONTAINER; A SUCTION WITHDRAWAL CONNECTION BETWEEN SAID AUXILIARY CONTAINER AND SAID LIQUID FLOW DUCT FOR APPLYING SUCTION TO THE FLOW DUCT; A LIQUID FLOW-OPERATED SUCTION DEVICE FOR GENERATING A PARTIAL VACUUM HAVING A SUCTION INLET AND CONNECTED IN SAID FLOW DUCT; AND A CONNECBY LIQUID FLOWING THROUGH SAID FLOW DUCT; AND A CONNECTION BETWEEN SAID AUXILIARY CONTAINER AND SAID SUCTION INLET OF THE SUCTION DEVICE FOR VACUUMIZING SAID AUXILIARY CONTAINER.
Claim 2
Dependent Claim
124 words
APPARATUS FOR DISPENSING LIQUID INTO AND WITHDRAWING LIQUID FROM RECEPTACLES OR THE LIKE COMPRISING: A LIQUID FLOW DUCT ADAPTED TO BE CONNECTED AT ONE END THEREOF TO A SOURCE OF SAID LIQUID UNDER PRESSURE AND HAVING AT THE OTHER END THEREOF COUPLING MEANS ADAPTED TO BE CONNECTED TO SAID RECEPTABLE; A CLOSED VACUUMIZED AUXILIARY CONTAINER; A SUCTION WITHDRAWAL CONNECTION BETWEEN SAID AUXILIARY CONTAINER AND SAID LIQUID FLOW DUCT FOR APPLYING SUCTION TO THE FLOW DUCT; A LIQUID FLOW-OPERATED SUCTION DEVICE FOR GENERATING A PARTIAL VACUUM HAVING A SUCTION INLET AND CONNECTED IN SAID FLOW DUCT; AND A CONNECBY LIQUID FLOWING THROUGH SAID FLOW DUCT; AND A CONNECTION BETWEEN SAID AUXILIARY CONTAINER AND SAID SUCTION INLET OF THE SUCTION DEVICE FOR VACUUMIZING SAID AUXILIARY CONTAINER.
References Cited (Backward Citations)
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Cited
US2307085A
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US2600876A
Cited
US2556425A
Cited
US2537266A
Cited
US2650003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |