Patent US3240075A successfully refreshed from Google Patents.
US3240075A
Expired / Lapsed
US
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Drag cup damper means for gyroscopes
Assignee: Bendix Corp
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Filing: 1962-06-29
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Granted: 1966-03-15
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Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
- 👤 George O Ranes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:06
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1257
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
FOR USE IN A GYROSCOPIC DEVICE OF A TYPE INCLUDING A ROTOR CASE, A FIXED FRAME, MEANS INCLUDING AN OUTPUT SHAFT FOR RESILIENTLY SUPPORTING THE ROTOR CASE RELATIVE TO THE FRAME FOR ANGULAR MOVEMENT ABOUT A PRECESSION AXIS OF THE ROTOR CASE, DAMPING MEANS HAVING A DRAG CUP OPERATIVELY CONNECTED TO SAID OUTPUT SHAFT AND A DAMPER MAGNET COOPERATING THEREWITH; THE IMPROVEMENT IN WHICH SAID DAMPER MAGNET INCLUDES A PLURALITY OF PERMANENT MAGNETS OF A RELATIVELY HIGH ENERGY MAGNETIC MATERIAL, A HUH MEMBER CENTRALLY ROTATABLE WITHIN SAID FIXED FRAME AND WHEREIN SAID HUB MEMBER IS OF A MATERIAL HAVING A RELATIVELY LOW RESISTANCE TO A MAGNETIZING FORCE, AND SAID PERMANENT MAGNETS POSITIONED ABOUT SAID HUB MEMBER
Claim 2
Dependent Claim
116 words
FOR USE IN A GYROSCOPIC DEVICE OF A TYPE INCLUDING A ROTOR CASE, A FIXED FRAME, MEANS INCLUDING AN OUTPUT SHAFT FOR RESILIENTLY SUPPORTING THE ROTOR CASE RELATIVE TO THE FRAME FOR ANGULAR MOVEMENT ABOUT A PRECESSION AXIS OF THE ROTOR CASE, DAMPING MEANS HAVING A DRAG CUP OPERATIVELY CONNECTED TO SAID OUTPUT SHAFT AND A DAMPER MAGNET COOPERATING THEREWITH; THE IMPROVEMENT IN WHICH SAID DAMPER MAGNET INCLUDES A PLURALITY OF PERMANENT MAGNETS OF A RELATIVELY HIGH ENERGY MAGNETIC MATERIAL, A HUH MEMBER CENTRALLY ROTATABLE WITHIN SAID FIXED FRAME AND WHEREIN SAID HUB MEMBER IS OF A MATERIAL HAVING A RELATIVELY LOW RESISTANCE TO A MAGNETIZING FORCE, AND SAID PERMANENT MAGNETS POSITIONED ABOUT SAID HUB MEMBER
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |