Patent US3175405A successfully refreshed from Google Patents.
US3175405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting apparatus
Assignee: Honeywell Inc
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Filing: 1961-11-24
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Granted: 1965-03-30
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Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Doyle Barrett
- 👤 Broek Henry W Ten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:19
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; F; F16; F16C; F16C27/00; F16C32/00; F16C32/04; F16C32/0406; F16C32/0408; F16C32/0436; F16C32/0438; F16C37/00; F16C37/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN AN ACCELEROMETER: A HOUSING ELEMENT HAVING AN ACCELERATION SENSITIVE AXIS; A SUPER-CONDUCTING SEISMIC MASS ELEMENT HAVING A FLANGE THEREON SUBSTANTIALLY PERPENDICULAR TO SAID AXIS; A PLURALITY OF SUPERCONDUCTING SUPPORT COILS MOUNTED UPON SAID HOUSING ELEMENT CONTIGUOUS SAID SEISMIC MASS, SAID SUPPORT COILS SUPPORTING SAID SEISMIC MASS ELEMENT WITHIN SAID HOUSING ELEMENT FOR MOVEMENT ALONG SAID AXIS RELATIVE TO SAID HOUSING UPON ACCELERATION OF THE ACCELEROMETER; A PLURALITY OF SUPERCONDUCTING RESTRAINT RINGS HAVING SURFACE CURRENTS THEREIN MOUNTED WITHIN SAID HOUSING ELEMENT, SAID RESTRAINT RINGS BEING SUBSTANTIALLY PERPENDICULAR TO SAID AXIS AND CONTIGUOUS OPPOSITE SIDES OF SAID FLANGES; MEANS FOR SENSING THE SURFACE CURRENTS IN SAID RESTRAINT RINGS, SAID RESTRAINT RINGS FUNCTIONING TO RESTRAIN SAID SEISMIC MASS ELEMENT SO AS TO RESTRICT THE MOVEMENT THEREOF ALONG SAID AXIS RELATIVE TO SAID HOUSING AND TO PROVIDE A SIGNAL INDICATIVE TO THE APPLIED ACCELERATION; DAMPING COILS MOUNTED UPON SAID HOUSING ELEMENT INTERMEDIATE SAID FLANGE AND SAID RESTRAINT RINGS, SAID DAMPING COILS DAMPING THE MOVEMENTS OF SAID SEISMIC MASS ELEMENT; AND MEANS SHIELDING THE ACCELEROMETER FOR EXTERNAL MAGNETIC FIELDS.
Claim 2
Dependent Claim
175 words
IN AN ACCELEROMETER: A HOUSING ELEMENT HAVING AN ACCELERATION SENSITIVE AXIS; A SUPER-CONDUCTING SEISMIC MASS ELEMENT HAVING A FLANGE THEREON SUBSTANTIALLY PERPENDICULAR TO SAID AXIS; A PLURALITY OF SUPERCONDUCTING SUPPORT COILS MOUNTED UPON SAID HOUSING ELEMENT CONTIGUOUS SAID SEISMIC MASS, SAID SUPPORT COILS SUPPORTING SAID SEISMIC MASS ELEMENT WITHIN SAID HOUSING ELEMENT FOR MOVEMENT ALONG SAID AXIS RELATIVE TO SAID HOUSING UPON ACCELERATION OF THE ACCELEROMETER; A PLURALITY OF SUPERCONDUCTING RESTRAINT RINGS HAVING SURFACE CURRENTS THEREIN MOUNTED WITHIN SAID HOUSING ELEMENT, SAID RESTRAINT RINGS BEING SUBSTANTIALLY PERPENDICULAR TO SAID AXIS AND CONTIGUOUS OPPOSITE SIDES OF SAID FLANGES; MEANS FOR SENSING THE SURFACE CURRENTS IN SAID RESTRAINT RINGS, SAID RESTRAINT RINGS FUNCTIONING TO RESTRAIN SAID SEISMIC MASS ELEMENT SO AS TO RESTRICT THE MOVEMENT THEREOF ALONG SAID AXIS RELATIVE TO SAID HOUSING AND TO PROVIDE A SIGNAL INDICATIVE TO THE APPLIED ACCELERATION; DAMPING COILS MOUNTED UPON SAID HOUSING ELEMENT INTERMEDIATE SAID FLANGE AND SAID RESTRAINT RINGS, SAID DAMPING COILS DAMPING THE MOVEMENTS OF SAID SEISMIC MASS ELEMENT; AND MEANS SHIELDING THE ACCELEROMETER FOR EXTERNAL MAGNETIC FIELDS.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |