US3351084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid level controller
Assignee: Phillips Petroleum Co
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Filing: 1964-12-04
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Granted: 1967-11-07
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Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 Halkiades George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:46
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; G01; G01F; G01F23/00; G01F23/30; G01F23/64; G01F23/68; G01F23/70; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306; Y10T137/7358; Y10T137/7381; Y10T137/7423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A SYSTEM FOR CONTROLLING THE LEVEL OF A LIQUID WITHIN A VESSEL INCLUDING FIRST MEANS OPERATIVELY CONNECTED TO SAID VESSEL FOR REMOVING LIQUID THEREFROM, LIQUID LEVEL SENSING MEANS OPERATIVELY CONNECTED TO SAID VESSEL FOR SENSING THE LEVEL OF LIQUID THEREIN, ELECTRIC CIRCUIT MEANS OPERATIVELY CONNECTED TO SAID LIQUID LEVEL SENSING MEANS FOR TRANSMITTING ELECTRIC CURRENT RESPONSIVE TO A SENSED LEVEL OF LIQUID WITHIN SAID VESSEL, AND AN ELECTRIC MOTOR OPERATIVELY CONNECTED TO SAID ELECTRIC CIRCUIT MEANS AND SAID FIRST MEAN FOR MOVING SAID FIRST MEANS RESPONSIVE TO CURRENT FLOW TO ALLOW LIQUID TO BE REMOVED FROM SAID VESSEL, APPARATUS COMPRISING CURRENT CONDUCTOR MEANS OPERATIVE-
Claim 2
Dependent Claim
105 words
IN A SYSTEM FOR CONTROLLING THE LEVEL OF A LIQUID WITHIN A VESSEL INCLUDING FIRST MEANS OPERATIVELY CONNECTED TO SAID VESSEL FOR REMOVING LIQUID THEREFROM, LIQUID LEVEL SENSING MEANS OPERATIVELY CONNECTED TO SAID VESSEL FOR SENSING THE LEVEL OF LIQUID THEREIN, ELECTRIC CIRCUIT MEANS OPERATIVELY CONNECTED TO SAID LIQUID LEVEL SENSING MEANS FOR TRANSMITTING ELECTRIC CURRENT RESPONSIVE TO A SENSED LEVEL OF LIQUID WITHIN SAID VESSEL, AND AN ELECTRIC MOTOR OPERATIVELY CONNECTED TO SAID ELECTRIC CIRCUIT MEANS AND SAID FIRST MEAN FOR MOVING SAID FIRST MEANS RESPONSIVE TO CURRENT FLOW TO ALLOW LIQUID TO BE REMOVED FROM SAID VESSEL, APPARATUS COMPRISING CURRENT CONDUCTOR MEANS OPERATIVE-
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |