US3382759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring laser biased by zeeman frequency offset effect for sensing slow rotations
Assignee: Unisys Corp
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Filing: 1963-12-18
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Granted: 1968-05-14
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Warren M Macek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:59
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; G; G01; G01C; G01C19/00; G01C19/58; G01C19/64; G01C19/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A RING LASER ROTATION RATE SENSOR HAVING A PLANE POLYGONAL CLOSED LOOP OPTICAL PATH SAID LASER COMPRISING AREFLECTING MIRROR IN SAID PATH AT EACH CORNER OF SAID PATH, A LONGITUDINALLY EXTENSIVE LASING MEDIUM IN SAID PATH, THE LONGITUDINAL AXIS OF SAID MEDIUM BEING COINCIDENT WITH A SIDE OF SAID PATH, MEANS FOR APPLYING A PREDETERMINED MAGNETIC FIELD LONGITUDINALLY ALONG SAID MEDIUM, MEANS FOR EXCITING SAID MEDIUM TO GENERATE A PAIR OF OPPOSITELY SENSED CIRCULARLY POLARIZED BEAMS OF DIFFERENT FREQUENCIES IN BOTH DIRECTIONS ALONG SAID PATH,
Claim 2
Dependent Claim
85 words
A RING LASER ROTATION RATE SENSOR HAVING A PLANE POLYGONAL CLOSED LOOP OPTICAL PATH SAID LASER COMPRISING AREFLECTING MIRROR IN SAID PATH AT EACH CORNER OF SAID PATH, A LONGITUDINALLY EXTENSIVE LASING MEDIUM IN SAID PATH, THE LONGITUDINAL AXIS OF SAID MEDIUM BEING COINCIDENT WITH A SIDE OF SAID PATH, MEANS FOR APPLYING A PREDETERMINED MAGNETIC FIELD LONGITUDINALLY ALONG SAID MEDIUM, MEANS FOR EXCITING SAID MEDIUM TO GENERATE A PAIR OF OPPOSITELY SENSED CIRCULARLY POLARIZED BEAMS OF DIFFERENT FREQUENCIES IN BOTH DIRECTIONS ALONG SAID PATH,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |