US3296584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmented ferrite sonar transducer with permanent magnet bias
Assignee: Individual
•
Filing: 1963-09-03
•
Granted: 1967-01-03
•
Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Leibowitz Donald
- 👤 Sommer Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:46
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/08; B06B1/085; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A TRANSDUCER RING FOR FORMING A PERMANENTLY BIASED IMMERSIBLE TRANSDUCER COMPRISING: A PLURALITY OF ARCUATE FERRITE MEMBERS HAVING RADIAL SIDE FACES WITH A PAIR OF BORES FORMED IN EACH OF SAID SIDE FACES; A PERMANENT MAGNET SUBSTANTIALLY CONFORMING TO THE CROSS-SECTIONAL DIMENSION OF SAID BORES BEING POSITIONED IN EACH OF THE BORES ON ONE SIDE FACE OF EACH OF SAID MEMBERS AND BEING OF SUCH LENGTH AS TO PROTRUDE FROM THE SIDE FACE SO AS TO BE RECEIVABLE WITHIN THE BORES ON THE RADIAL FACE OF AN ADJACENTLY POSITIONED ARCUATE MEMBER; AND SAID PLURALITY OF MEMBERS BEING POSITIONED WITH THEIR RADIAL FACES IN ABUTTING RELATION TO FORM A RIGID TRANSDUCER RING.
Claim 2
Dependent Claim
111 words
A TRANSDUCER RING FOR FORMING A PERMANENTLY BIASED IMMERSIBLE TRANSDUCER COMPRISING: A PLURALITY OF ARCUATE FERRITE MEMBERS HAVING RADIAL SIDE FACES WITH A PAIR OF BORES FORMED IN EACH OF SAID SIDE FACES; A PERMANENT MAGNET SUBSTANTIALLY CONFORMING TO THE CROSS-SECTIONAL DIMENSION OF SAID BORES BEING POSITIONED IN EACH OF THE BORES ON ONE SIDE FACE OF EACH OF SAID MEMBERS AND BEING OF SUCH LENGTH AS TO PROTRUDE FROM THE SIDE FACE SO AS TO BE RECEIVABLE WITHIN THE BORES ON THE RADIAL FACE OF AN ADJACENTLY POSITIONED ARCUATE MEMBER; AND SAID PLURALITY OF MEMBERS BEING POSITIONED WITH THEIR RADIAL FACES IN ABUTTING RELATION TO FORM A RIGID TRANSDUCER RING.
References Cited (Backward Citations)
US3126617A
Cited
US2444967A
Cited
US2475321A
Cited
US2745084A
Cited
US2535025A
Cited
US2836881A
Cited
US2795709A
Cited
US2958918A
Cited
US2947890A
Cited
US3163922A
Cited
US3177382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |