US3563662A
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Apparatus for sensing movement about a plurality of axes
Assignee: Unisys Corp
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Filing: 1966-06-13
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Granted: 1971-02-16
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Expires: 1986-06-13
Abstract
Abstract APPARATUS FOR SENSING MOVEMENT ABOUT A PLURALITY OF AXES INCLUDING A LIKE PLURALITY OF RING LASERS MOUNTED ON SURFACES DEFINING A GEOMETRIC FIGURE, FOR EXAMPLE, AN ORTHOGONALLY MOUNTED TRIAD OF RING LASERS MOUNTED ON MUTUALLY PERPENDICULAR SURFACES OF A CUBE WHEREIN THE CUBE IS ROTATED ABOUT ONE OF ITS DIAGONAL AXES FOR IMPARTING EQUAL COMPONENTS OF ROTATION TO EACH OF THE RING LASERS THEREBY ELIMINATING MODE LOCKING AND ASSURING THAT THE BEAT FREQUENCY OBTAINED BY HETERODYNING THE CONTRAROTATING LIGHT WAVES IS LINEARLY RELATED TO THE COMPONENT OF ROTATION RATE MEASURED PARALLEL TO THE INPUT AXIS OF THE RESPECTIVE RING LASER.
Inventors
- 👤 Willis G Wing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:36
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/58; G01C19/64; G01C19/66; G01C19/68; G01C19/70; G01C19/668; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/166; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/0888; H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/081; H01S3/083; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1221
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |