Patent US3226973A successfully refreshed from Google Patents.
US3226973A
Expired / Lapsed
US
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Mass flow measurement methods and apparatus
Assignee: Individual
•
Filing: 1963-08-09
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Granted: 1966-01-04
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Expires: 1983-08-09
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Evans
- 👤 Gene W Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:31
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
APPARATUS FOR PROVIDING A MASS FLOW METER, COMPRISING A CONDUIT SYSTEM HAVING FIRST AND SECOND BRANCH LINES, EACH COMMUNICATING WITH A COMMON INPUT LINE; INTRODUCING MEANS FOR INTRODUCING GAS AT A CONSTANT RATE INTO THE INPUT LINE; MEANS FOR DIRECTING ALL GAS SO INTRODUCED INTO EITHER OF THE BRANCH LINES; THE FIRST BRANCH LINE BEING ADAPTED TO CONNECT WITH A FLOW METER WHICH IS TO BE TESTED; A GAS COLLECTION FLASK CONNECTED TO THE SECOND BRANCH LINE; MEANS FOR WEIGHING THE FLASK; IN THE CONDUIT SYSTEM, INTERMEDIATE THE GAS FLASK AND THE INTRODUCING MEANS, VALVE MEANS HAVING A NORMAL POSITION (A) WHEREIN THE INTRODUCING MEANS IS IN COMMUNICATION WITH A DISCHARGE OUTLET AND THE FLASK IS SEALED, AND (B) ANOTHER POSITION IN WHICH THE INTRODUCING MEANS IS IN COMMUNICATION WITH THE FLASK AND THE DISCHARGE OUTLET IS CLOSED; AND MEANS FOR CAUSING THE VALVE MEANS TO REMAIN IN POSITION (B) FOR AN INTERVAL OF TIME AND FOR MOVING THE VALVE MEANS TO POSITION (A) AT THE END OF THE INTERVAL.
Claim 2
Dependent Claim
170 words
APPARATUS FOR PROVIDING A MASS FLOW METER, COMPRISING A CONDUIT SYSTEM HAVING FIRST AND SECOND BRANCH LINES, EACH COMMUNICATING WITH A COMMON INPUT LINE; INTRODUCING MEANS FOR INTRODUCING GAS AT A CONSTANT RATE INTO THE INPUT LINE; MEANS FOR DIRECTING ALL GAS SO INTRODUCED INTO EITHER OF THE BRANCH LINES; THE FIRST BRANCH LINE BEING ADAPTED TO CONNECT WITH A FLOW METER WHICH IS TO BE TESTED; A GAS COLLECTION FLASK CONNECTED TO THE SECOND BRANCH LINE; MEANS FOR WEIGHING THE FLASK; IN THE CONDUIT SYSTEM, INTERMEDIATE THE GAS FLASK AND THE INTRODUCING MEANS, VALVE MEANS HAVING A NORMAL POSITION (A) WHEREIN THE INTRODUCING MEANS IS IN COMMUNICATION WITH A DISCHARGE OUTLET AND THE FLASK IS SEALED, AND (B) ANOTHER POSITION IN WHICH THE INTRODUCING MEANS IS IN COMMUNICATION WITH THE FLASK AND THE DISCHARGE OUTLET IS CLOSED; AND MEANS FOR CAUSING THE VALVE MEANS TO REMAIN IN POSITION (B) FOR AN INTERVAL OF TIME AND FOR MOVING THE VALVE MEANS TO POSITION (A) AT THE END OF THE INTERVAL.
References Cited (Backward Citations)
US3026706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |