Patent US3121169A successfully refreshed from Google Patents.
US3121169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical communication system using a circular electromechanical modulator
Assignee: CENTRE CIRCUITS Inc
•
Filing: 1961-02-08
•
Granted: 1964-02-11
•
Expires: 1981-02-08
Abstract
No abstract record available.
Inventors
- 👤 Robert C Benton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:56
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/02; G02B26/001; H; H04; H04B; H04B10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A DEVICE OF THE CHARACTER DESCRIBED, A CONTAINER WITH OPPOSITE TRANSPARENT WALLS FOR HOLDING LIQUID AND ADAPTED TO HAVE A LIGHT BEAM DIRECTED ON AN AXIS THROUGH THE WALLS OF THE CONTAINER, AND A TRANSDUCER RING OF MAGNETOSTRICTIVE MATERIAL IN SAID CONTAINER AND ENERGIZABLE WITH PULSATING MAGNETOSTRICTIVE POWER INPUT FOR CREATING WITH RESPECT TO THE OSCILLATING CIRCUMFERENCE WITHIN THE RING A CLOUD OF INSTANTANEOUSLY APPEARING AND DISAPPEARING LIQUID CAVITATION BUBBLES IN THE GEOMETRIC CENTER OF THE RING IN THE AREA OF SAID AXIS TO VARY THE PERCENTAGE OF LIGHT TRANSMITTED BETWEEN SAID WALLS.
Claim 2
Dependent Claim
94 words
IN A DEVICE OF THE CHARACTER DESCRIBED, A CONTAINER WITH OPPOSITE TRANSPARENT WALLS FOR HOLDING LIQUID AND ADAPTED TO HAVE A LIGHT BEAM DIRECTED ON AN AXIS THROUGH THE WALLS OF THE CONTAINER, AND A TRANSDUCER RING OF MAGNETOSTRICTIVE MATERIAL IN SAID CONTAINER AND ENERGIZABLE WITH PULSATING MAGNETOSTRICTIVE POWER INPUT FOR CREATING WITH RESPECT TO THE OSCILLATING CIRCUMFERENCE WITHIN THE RING A CLOUD OF INSTANTANEOUSLY APPEARING AND DISAPPEARING LIQUID CAVITATION BUBBLES IN THE GEOMETRIC CENTER OF THE RING IN THE AREA OF SAID AXIS TO VARY THE PERCENTAGE OF LIGHT TRANSMITTED BETWEEN SAID WALLS.
References Cited (Backward Citations)
US1894942A
Cited
US2158990A
Cited
US2153490A
Cited
US2234329A
Cited
US2287587A
Cited
US2449166A
Cited
US2433456A
Cited
US2557974A
Cited
US2634366A
Cited
US2707749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |