Gasoline blending apparatus
Abstract
Abstract A THREE GRADE GASOLINE DISPENSING SYSTEM IS DISCLOSED WHEREIN TWO GRADES OF GASOLINE ARE STORED IN SUBSURFACE TANKS AND BLENDED TO OBTAIN AN INTERMEDIATE GRADE. THE SYSTEM COMPRISES TWO SEPARATE STORAGE TANKS (FOR PREMIUM GRADE AND REGULAR GRADE GASOLINE) EACH CONNECTED TO A SEPARATE PUMP, EACH PUMP BEING SEPARATELY CONNECTED TO METERING AND DISPENSING DEVICES BY TWO PIPES, RESPECTIVELY A PREMIUM GRADE PIPE AND AN INTERMEDIATE GRADE PIPE. A THIRD PUMP, METERING AND DISPENSING DEVICE IS SEPARATELY CONNECTED TO ONE OF THE TANKS BY A PIPE. AN INTERCONNECTING PIPE IS CONNECTED BETWEEN EACH OF THE FIRST (PREMIUM) AND SECOND (INTERMEDIATE GRADE) PIPES LEADING FROM THEIR RESPECTIVE PUMPS. A NORMALLY CLOSED SOLENOID VALVE IS MOUNTED IN THE INTERCONNECTING PIPE, WHILE A NORMALLY OPEN SOLENOID VALVE IS MOUNTED IN THE PIPE TO THE PREMIUM GRADE METERING DEVICE WHEREBY FLOW THROUGH THE PREMIUM DISPENSING DEVICE PIPE AND THE INTERCONNECTING PIPE ARE CONTROLLED BY AN INTERLOCKING CIRCUIT TO ASSURE PROPER PROPORTIONAL MIXING OF THE TWO GRADES OF GASOLINE TO OBTAIN THE INTERMEDIATE GRADE.
Inventors
- 👤 A Gulbrandsen
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |