US3210663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
R.m.s. meter using opposed thermocouples connected in an automatically rebalanced constant gain servo loop
Assignee: F L MOSELEY CO
•
Filing: 1960-11-04
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Granted: 1965-10-05
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Expires: 1980-11-04
Abstract
No abstract record available.
Inventors
- 👤 Francis L Moseley
- 👤 Andres O Holdo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:03
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/22; G01R19/225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN R.M.S. VOLTAGE INDICATING APPARATUS COMPRISING FIRST AND SECOND SIGNALS CHANNELS, MEANS IN EACH OF SAID CHANNELS RESPONSIVE TO THE R.M.S. MAGNITUDE OF AN APPLIED WAVEFORM TO PRODUCE AN OUPUT PROPORTIONAL THERETO, MEANS FOR COUPLING A SIGNAL OF UNKNOWN WAVEFROM TO THE FIRST CHANNEL, A REFERENCE SOURCE OF REGULATED A.C. VOLTAGE, MEANS FOR COUPLING A CONTROLLABLY VARIABLE PORTION OF THE REGULATED A.C. VOLTAGE TO THE SECOND CHANNEL, MEANS FOR DERIVING A RESULTANT SIGNAL FROM THE R.M.S. MAGNITUDE RESPONSIVE MEANS OF SAID FIRST AND SECOND CHANNELS, A SERVOMOTOR MECHANICALLY LINKED TO THE A.C. VOLTAGE COUPLING MEANS, MEANS CONTROLLED BY THE SERVOMOTOR FOR INDICATING THE POSITION OF THE A.C. VOLTAGE COUPLING
Claim 2
Dependent Claim
109 words
AN R.M.S. VOLTAGE INDICATING APPARATUS COMPRISING FIRST AND SECOND SIGNALS CHANNELS, MEANS IN EACH OF SAID CHANNELS RESPONSIVE TO THE R.M.S. MAGNITUDE OF AN APPLIED WAVEFORM TO PRODUCE AN OUPUT PROPORTIONAL THERETO, MEANS FOR COUPLING A SIGNAL OF UNKNOWN WAVEFROM TO THE FIRST CHANNEL, A REFERENCE SOURCE OF REGULATED A.C. VOLTAGE, MEANS FOR COUPLING A CONTROLLABLY VARIABLE PORTION OF THE REGULATED A.C. VOLTAGE TO THE SECOND CHANNEL, MEANS FOR DERIVING A RESULTANT SIGNAL FROM THE R.M.S. MAGNITUDE RESPONSIVE MEANS OF SAID FIRST AND SECOND CHANNELS, A SERVOMOTOR MECHANICALLY LINKED TO THE A.C. VOLTAGE COUPLING MEANS, MEANS CONTROLLED BY THE SERVOMOTOR FOR INDICATING THE POSITION OF THE A.C. VOLTAGE COUPLING
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |