US3148527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic error calibrator
Assignee: North American Aviation Corp
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Filing: 1960-05-12
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Granted: 1964-09-15
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Expires: 1980-05-12
Abstract
No abstract record available.
Inventors
- 👤 James J Lindquist
- 👤 Arve R Sjovold
- 👤 Verne R Bauman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:50
CPC Classifications
G; G01; G01F; G01F25/00; G01F25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
IN A FLOW BENCH ADAPTED TO CALIBRATE FLOWMETERS AND THE LIKE, MEANS FOR CALIBRATING PARTICULAR FLOWMETERS TO PROVIDE READINGS FREE FROM DYNAMIC ERROR, COMPRISING: A PLURALITY OF CONDUITS THROUGH WHICH FLOW MAY BE ESTABLISHED, A FIRST ONE OF SAID CONDUITS BEING ADAPTED TO RECEIVE A FLOWMETER TO BE CALIBRATED; MEANS FOR PROVIDING A PRE-SELECTED SERIES OF NOMINAL FLOW RATES THROUGH SAID BENCH AT A NUMBER OF DIFFERING DYNAMIC LEVELS; MEANS RESPONSIVE TO SAID NOMINAL FLOW RATES FOR REGISTERING SAID SERIES OF NOMINAL FLOW RATES AT DIFFERING DYNAMIC LEVELS; MEANS FOR DETERMINING AND REGISTERING THE ACTUAL FLOW RATES CORRESPONDING TO EACH OF SAID SERIES OF NOMINAL FLOW RATES; MEANS FOR DETERMINING THE DIFFERENCES BETWEEN SAID ACTUAL AND NOMINAL FLOW RATES AT SAID DIFFERING DYNAMIC LEVELS; MEANS TO DETERMINE THE ERRORS DUE TO DYNAMIC FLOW AT DIFFERING LEVELS; AND MEANS TO APPLY CORRECTION FACTORS SO AS TO COMPENSATE FOR THE ERRORS DUE TO DYNAMIC FLOW IN THE CALIBRATION OF FLOWMETERS INSERTED IN SAID FIRST ONE OF SAID CONDUITS.
Claim 2
Dependent Claim
166 words
IN A FLOW BENCH ADAPTED TO CALIBRATE FLOWMETERS AND THE LIKE, MEANS FOR CALIBRATING PARTICULAR FLOWMETERS TO PROVIDE READINGS FREE FROM DYNAMIC ERROR, COMPRISING: A PLURALITY OF CONDUITS THROUGH WHICH FLOW MAY BE ESTABLISHED, A FIRST ONE OF SAID CONDUITS BEING ADAPTED TO RECEIVE A FLOWMETER TO BE CALIBRATED; MEANS FOR PROVIDING A PRE-SELECTED SERIES OF NOMINAL FLOW RATES THROUGH SAID BENCH AT A NUMBER OF DIFFERING DYNAMIC LEVELS; MEANS RESPONSIVE TO SAID NOMINAL FLOW RATES FOR REGISTERING SAID SERIES OF NOMINAL FLOW RATES AT DIFFERING DYNAMIC LEVELS; MEANS FOR DETERMINING AND REGISTERING THE ACTUAL FLOW RATES CORRESPONDING TO EACH OF SAID SERIES OF NOMINAL FLOW RATES; MEANS FOR DETERMINING THE DIFFERENCES BETWEEN SAID ACTUAL AND NOMINAL FLOW RATES AT SAID DIFFERING DYNAMIC LEVELS; MEANS TO DETERMINE THE ERRORS DUE TO DYNAMIC FLOW AT DIFFERING LEVELS; AND MEANS TO APPLY CORRECTION FACTORS SO AS TO COMPENSATE FOR THE ERRORS DUE TO DYNAMIC FLOW IN THE CALIBRATION OF FLOWMETERS INSERTED IN SAID FIRST ONE OF SAID CONDUITS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |