US3283594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-axis viscous drive gyro
Assignee: General Precision Inc
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Filing: 1963-12-27
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Granted: 1966-11-08
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Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Parker Bernard
- 👤 John C Stiles
- 👤 Weisbord Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:26
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/06; G01C19/12; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1232; Y10T74/125; Y10T74/1282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A GYROSCOPE FOR SENSING ANGULAR DISPLACEMENT ABOUT TWO MUTUALLY ORTHOGONAL AXES, SAID GYROSCOPE COMPRISING: A ROTOR HAVING INNER AND OUTER SPHERICAL SURFACES MUTUALLY CONCENTRIC WITH THE ROTOR SPIN AXIS, A CASING POSITIONED ABOUT SAID ROTOR, A SPHERICAL BEARING MEMBER ROTATABLY SUPPORTED ON SAID CASING FOR ROTATION ABOUT AN AXIS PERPENDICULAR TO THE ORTHOGONAL SENSING AXES, SAID BEARING MEMBER BEING CONCENTRIC WITH AND SPACED SLIGHTLY FROM THE INNER SPHERICAL SURFACE OF SID ROTOR TO DEFINE A GAS BEARING GAP, MEANS FOR CONTAINING GAS IN SAID GAP, DRIVE MEANS COUPLED TO SAID BEARING MEMBER FOR ROTATING SAID BEARING MEMBER AND SAID ROTOR UNDER THE INFLUENCE OF THE VISCOUS GAS DRAG BETWEEN SAID BEARING MEMBER AND SAIF ROTOR, A TORQUER TO ORIENT SPIN AXIS OF SAID ROTOR, PICK-OFF MEANS ON THE MUTUALLY ORTHOGONAL SENSING AXES FOR SENSING ANGULAR DISPLACEMENT OF SAID CASING ABOUT THE ORTHOGONAL SENSING AXES, AND RESTRAINT COMPENSATING MEANS TO BALANCE RESTRAINTS TO ANGULAR DISPLACEMENT DUE TO GAS TURBULENCE AND VISCOSITY.
Claim 2
Dependent Claim
160 words
A GYROSCOPE FOR SENSING ANGULAR DISPLACEMENT ABOUT TWO MUTUALLY ORTHOGONAL AXES, SAID GYROSCOPE COMPRISING: A ROTOR HAVING INNER AND OUTER SPHERICAL SURFACES MUTUALLY CONCENTRIC WITH THE ROTOR SPIN AXIS, A CASING POSITIONED ABOUT SAID ROTOR, A SPHERICAL BEARING MEMBER ROTATABLY SUPPORTED ON SAID CASING FOR ROTATION ABOUT AN AXIS PERPENDICULAR TO THE ORTHOGONAL SENSING AXES, SAID BEARING MEMBER BEING CONCENTRIC WITH AND SPACED SLIGHTLY FROM THE INNER SPHERICAL SURFACE OF SID ROTOR TO DEFINE A GAS BEARING GAP, MEANS FOR CONTAINING GAS IN SAID GAP, DRIVE MEANS COUPLED TO SAID BEARING MEMBER FOR ROTATING SAID BEARING MEMBER AND SAID ROTOR UNDER THE INFLUENCE OF THE VISCOUS GAS DRAG BETWEEN SAID BEARING MEMBER AND SAIF ROTOR, A TORQUER TO ORIENT SPIN AXIS OF SAID ROTOR, PICK-OFF MEANS ON THE MUTUALLY ORTHOGONAL SENSING AXES FOR SENSING ANGULAR DISPLACEMENT OF SAID CASING ABOUT THE ORTHOGONAL SENSING AXES, AND RESTRAINT COMPENSATING MEANS TO BALANCE RESTRAINTS TO ANGULAR DISPLACEMENT DUE TO GAS TURBULENCE AND VISCOSITY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |