US2747598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-dispensing system with remote control
Assignee: Shell Development Co
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Filing: 1952-07-22
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Granted: 1956-05-29
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Expires: 1972-07-22
Abstract
No abstract record available.
Inventors
- 👤 Wooldridge James Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:08
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579; Y10T137/2589; Y10T137/2599; Y10T137/2605; Y10T137/2622; Y10T137/2625; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A LIQUID-DISPENSING SYSTEM INCLUDING: A PUMP HAVING SUCTION AND DISCHARGE SIDES; A DELIVERY PIPE LINE CONNECTED TO THE DISCHARGE SIDE OF SAID PUMP; AT LEAST ONE DISPENSING DEVICE INCLUDING A DELIVERY VALVE CONNECTED TO SAID DELIVERY PIPE LINE; A NON-RETURN VALVE IN SAID DELIVERY PIPE LINE, SAID NON-RETURN VALVE BEING DISPOSED TO PERMIT LIQUID FLOW FROM SAID PUMP TO THE DISPENSING DEVICE BUT NOT VICE VERSA; A BY-PASS LINE PROVIDING A LOWRESISTANCE FLOW PATH FOR LIQUID BETWEEN THE DISCHARGE AND SUCTION SIDES OF SAID PUMP; A BY-PASS VALVE IN SAID BYPASS LINE WHICH IS OPERATIVE TO VARY THE RESISTANCE TO LIQUID FLOW THROUGH SAID BY-PASS LINE; AND A PRESSURE-RESPONSIVE VALVE ACTUATOR FOR SAID BY-PASS VALVE CONNECTED TO RESPOND TO THE PRESSURE IN SAID DELIVERY PIPE LINE AT A POINT THEREIN LOCATED BETWEEN SAID NON-RETURN VALVE AND THE SAID DELIVERY VALVE, SAID ACTUATOR BEING DISPOSED TO ACTUATE THE BY-PASS VALVE TO DECREASE THE SAID RESISTANCE TO FLOW THROUGH THE BY-PASS LINE WHEN THE PRESSURE AT SAID POINT IN THE DELIVERY PIPE LINE RISES TO A PREDETERMINED VALUE.
Claim 2
Dependent Claim
176 words
A LIQUID-DISPENSING SYSTEM INCLUDING: A PUMP HAVING SUCTION AND DISCHARGE SIDES; A DELIVERY PIPE LINE CONNECTED TO THE DISCHARGE SIDE OF SAID PUMP; AT LEAST ONE DISPENSING DEVICE INCLUDING A DELIVERY VALVE CONNECTED TO SAID DELIVERY PIPE LINE; A NON-RETURN VALVE IN SAID DELIVERY PIPE LINE, SAID NON-RETURN VALVE BEING DISPOSED TO PERMIT LIQUID FLOW FROM SAID PUMP TO THE DISPENSING DEVICE BUT NOT VICE VERSA; A BY-PASS LINE PROVIDING A LOWRESISTANCE FLOW PATH FOR LIQUID BETWEEN THE DISCHARGE AND SUCTION SIDES OF SAID PUMP; A BY-PASS VALVE IN SAID BYPASS LINE WHICH IS OPERATIVE TO VARY THE RESISTANCE TO LIQUID FLOW THROUGH SAID BY-PASS LINE; AND A PRESSURE-RESPONSIVE VALVE ACTUATOR FOR SAID BY-PASS VALVE CONNECTED TO RESPOND TO THE PRESSURE IN SAID DELIVERY PIPE LINE AT A POINT THEREIN LOCATED BETWEEN SAID NON-RETURN VALVE AND THE SAID DELIVERY VALVE, SAID ACTUATOR BEING DISPOSED TO ACTUATE THE BY-PASS VALVE TO DECREASE THE SAID RESISTANCE TO FLOW THROUGH THE BY-PASS LINE WHEN THE PRESSURE AT SAID POINT IN THE DELIVERY PIPE LINE RISES TO A PREDETERMINED VALUE.
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) | 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 |