US3234785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow measuring system
Assignee: Douglas Aircraft Co Inc
•
Filing: 1963-05-27
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Granted: 1966-02-15
•
Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Victor E Rimsha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:15
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/72
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
A SYSTEM FOR MEASURING PULSE FLOW OF PROPELLANT FLUID TO A ROCKET ENGINE COMPRISING: A PROPELLANT FLUID CONTAINER HAVING MEANS FOR FLOW-CONNECTION TO A ROCKET ENGINE; MEANS TO EJECT FLUID FROM SAID CONTAINER IN SMALL QUANTITIES DURING SHORT DURATION PULSES; OUTLET VALVE MEANS TO CONTROL THE FLOW OF FLUID FROM SAID CONTAINER; MECHANICAL MEANS MOVABLE TO SUCCESSIVE POSITIONS TO INDICATE THE QUANTITY OF FLUID EJECTED; ELECTRICAL MEANS TO CONTINUALLY SENSE THE INSTANTANEOUS POSITIONS OF SAID MECHANICAL MEANS; AND MEANS CONNECTED TO SAID ELECTRICAL MEANS TO TRANSLATE SAID POSITIVE SENSINGS ITNO A RECORDED TRACE OF FLUID FLOW VERSUS TIME.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |