US3305770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saturable core transducers
Assignee: Leeds and Northrup Co
•
Filing: 1963-03-29
•
Granted: 1967-02-21
•
Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Hulls Leonard Robin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:44
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/22; G01D5/2208; G01D5/2241; G01D5/2006; G01D5/2033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A TRANSDUCER FOR CONVERTING A DISPLACEMENT INTO A CORRESPONDING CHANGE IN AN ELECTRICAL SIGNAL COMPRISING AT LEAST ONE SATURABLE CORE IN THE FORM OF A CLOSED LOOP, A DISTRIBUTED WINDING ON SAID CORE, SAID CORE HAVING AN EFFECTIVE VOLT SECOND CONTENT WITH RESPECT TO SAID WINDING, MEANS FOR PERIODICALLY EXCITING SAID WINDING TO PRODUCE A SATURATION FLUX AROUND SAID LOOP IN ONE SENSE, MEANS FOR RESETTING SAID CORE TO A SATURATION FLUX AROUND SAID LOOP IN THE OPPOSITE SENSE, FIELD PRODUCING MEANS INCLUDING A TRANSVERSELY MAGNETIZED MEMBER MOVABLE IN ACCORDANCE WITH THE MOTION FOR PRODUCING A CHANGE IN THE EFFECTIVE VOLT SECOND CONTENT OF SAID CORE WITH RESPECT TO SAID WINDING, AND CIRCUIT MEANS CONNECTED BETWEEN SAID WINDING AND SAID EXCITING MEANS FOR PRODUCING AN ELECTRICAL SIGNAL VARYING WITH CHANGE IN POSITION OF SAID MOVABLE MEMBER.
Claim 2
Dependent Claim
136 words
A TRANSDUCER FOR CONVERTING A DISPLACEMENT INTO A CORRESPONDING CHANGE IN AN ELECTRICAL SIGNAL COMPRISING AT LEAST ONE SATURABLE CORE IN THE FORM OF A CLOSED LOOP, A DISTRIBUTED WINDING ON SAID CORE, SAID CORE HAVING AN EFFECTIVE VOLT SECOND CONTENT WITH RESPECT TO SAID WINDING, MEANS FOR PERIODICALLY EXCITING SAID WINDING TO PRODUCE A SATURATION FLUX AROUND SAID LOOP IN ONE SENSE, MEANS FOR RESETTING SAID CORE TO A SATURATION FLUX AROUND SAID LOOP IN THE OPPOSITE SENSE, FIELD PRODUCING MEANS INCLUDING A TRANSVERSELY MAGNETIZED MEMBER MOVABLE IN ACCORDANCE WITH THE MOTION FOR PRODUCING A CHANGE IN THE EFFECTIVE VOLT SECOND CONTENT OF SAID CORE WITH RESPECT TO SAID WINDING, AND CIRCUIT MEANS CONNECTED BETWEEN SAID WINDING AND SAID EXCITING MEANS FOR PRODUCING AN ELECTRICAL SIGNAL VARYING WITH CHANGE IN POSITION OF SAID MOVABLE MEMBER.
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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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |