US3201986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass flowmeter
Assignee: Consolidated Electrodynamics Corp
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Filing: 1961-06-29
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Granted: 1965-08-24
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Charles F Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:19
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/56; G01F1/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
APPARATUS FOR DETECTING THE MASS FLOW RATE OF A MEDIUM HAVING A CONDUCTIVITY OF LESS THAN APPROXIMATELY 10-7 MHOS PER METER COMPRISING: A PIPE HAVING A LINING OF NONCONDUCTING MATERIAL FO RTRANSPORTING THE MEDIUM; FIRST AND SECOND PARALLEL PLATES OF CONDUCTING MATERIAL DISPOSED WITHIN SAIDD PIPE PARALLEL TO THE DIRECTION OF FLOW OF THE MEDIUM; A CAPACITOR COUPLED EXTERNALLY TO SAID PIPE ACROSS SAID FIRST AND SECOND PARALLEL PLATES, SAID CAPACITOR HAVING A CAPACITANCE WHICH IS SUBSTANTIALLY GREATER THAN THE CAPACITANCE OF SAID FIRST AND SECOND PARALLEL PLATES MEANS FOR GENERATING AN ALTERNATING MAGNETIC FIELD THROUGH SAID PIPE HAVING A COMPONENT OF FLUX PARALLEL TO THE OPPOSING SURFACES OF SAID FIRST AND SECOND PARALLEL PLATES AND PERPENDICULAR TO THE DIRECTION OF FLOW OF SAID MEDIUM; AND PHASE SYNCHRONOUS VOLTAGE DETECTING MEANS COUPLED ACROSS SAID CAPACITOR AND TO THE MEANS FOR GENERATING THE ALTERNATING MAGNETIC FIELD FOR DETECTING THE VOLTAGE INDUCED BETWEEN SAIUD FIRST AND SECOND PARALLEL PLATES DUE TO THE FLOW OF SAID MEDIUM THROUGH SAID MAGANETIC FIELD.
Claim 2
Dependent Claim
168 words
APPARATUS FOR DETECTING THE MASS FLOW RATE OF A MEDIUM HAVING A CONDUCTIVITY OF LESS THAN APPROXIMATELY 10-7 MHOS PER METER COMPRISING: A PIPE HAVING A LINING OF NONCONDUCTING MATERIAL FO RTRANSPORTING THE MEDIUM; FIRST AND SECOND PARALLEL PLATES OF CONDUCTING MATERIAL DISPOSED WITHIN SAIDD PIPE PARALLEL TO THE DIRECTION OF FLOW OF THE MEDIUM; A CAPACITOR COUPLED EXTERNALLY TO SAID PIPE ACROSS SAID FIRST AND SECOND PARALLEL PLATES, SAID CAPACITOR HAVING A CAPACITANCE WHICH IS SUBSTANTIALLY GREATER THAN THE CAPACITANCE OF SAID FIRST AND SECOND PARALLEL PLATES MEANS FOR GENERATING AN ALTERNATING MAGNETIC FIELD THROUGH SAID PIPE HAVING A COMPONENT OF FLUX PARALLEL TO THE OPPOSING SURFACES OF SAID FIRST AND SECOND PARALLEL PLATES AND PERPENDICULAR TO THE DIRECTION OF FLOW OF SAID MEDIUM; AND PHASE SYNCHRONOUS VOLTAGE DETECTING MEANS COUPLED ACROSS SAID CAPACITOR AND TO THE MEANS FOR GENERATING THE ALTERNATING MAGNETIC FIELD FOR DETECTING THE VOLTAGE INDUCED BETWEEN SAIUD FIRST AND SECOND PARALLEL PLATES DUE TO THE FLOW OF SAID MEDIUM THROUGH SAID MAGANETIC FIELD.
References Cited (Backward Citations)
US2733604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |