US3136941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two terminal magnetic amplifier apparatus
Assignee: Robertshaw Controls Co
•
Filing: 1961-01-27
•
Granted: 1964-06-09
•
Expires: 1981-01-27
Abstract
No abstract record available.
Inventors
- 👤 Marlow Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:26
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/27537; H; H03; H03F; H03F9/00; H03F9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A MAGNETIC AMPLIFIER FOR CONTROLLING THE CURRENT TO A LOAD FROM AN ALTERNATING VOLTAGE SOURCE, COMPRISING A FIRST SATURABLE REACTOR CONNECTED IN SERIES WITH THE ALTERNATING CURRENT SOURCE AND THE LOAD, A CIRCUIT INCLUDING A SECOND SATURABLE REACTOR AND A SERIES CONNECTED RECTIFYING ELEMENT BOTH BEING IN PARALLEL WITH SAID FIRST SATURABLE REACTOR, AND A TWO-TERMINAL CONDITION-SENSING VARIABLE IMPEDANCE ELEMENT CONNECTED IN PARALLEL WITH SAID RECTIFYING ELEMENT AND IN SERIES WITH SAID SECOND SATURABLE REACTOR.
Claim 2
Dependent Claim
75 words
A MAGNETIC AMPLIFIER FOR CONTROLLING THE CURRENT TO A LOAD FROM AN ALTERNATING VOLTAGE SOURCE, COMPRISING A FIRST SATURABLE REACTOR CONNECTED IN SERIES WITH THE ALTERNATING CURRENT SOURCE AND THE LOAD, A CIRCUIT INCLUDING A SECOND SATURABLE REACTOR AND A SERIES CONNECTED RECTIFYING ELEMENT BOTH BEING IN PARALLEL WITH SAID FIRST SATURABLE REACTOR, AND A TWO-TERMINAL CONDITION-SENSING VARIABLE IMPEDANCE ELEMENT CONNECTED IN PARALLEL WITH SAID RECTIFYING ELEMENT AND IN SERIES WITH SAID SECOND SATURABLE REACTOR.
References Cited (Backward Citations)
US2423114A
Cited
US2907947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |