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US3085433A
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Cryogenic liquid level detector
Assignee: Cryogenics Inc
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Filing: 1960-04-15
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Granted: 1963-04-16
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Expires: 1980-04-15
Abstract
No abstract record available.
Inventors
- 👤 Shmueli Kalman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:13
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN APPARATUS FOR SENSING THE CHANGE IN PHASE IN A FLUID MEDIUM WITHIN A CONTAINER AND INDICATING THE CHANGE ON AN INDICATING INSTRUMENT COMPRISED BY A CASING HAVING A CHAMBER THEREIN AND A BORE FROM THE CHAMBER TO THE EXTERIOR OF THE CASING, A CAPSULE ON THE CASING OVER THE BORE AND ADAPTED TO EXTEND INTO THE CONTAINER, A SENSING COIL WITHIN THE CAPSULE, AN EXPANSIBLE ELEMENT WITHIN THE CHAMBER EXPOSED TO THE PRESSURE WITHIN THE LATTER, THE BORE AND THE CAPSULE, A MICROSWITCH OPERABLY CONNECTED TO THE EXPANSIBLE ELEMENT, AND CIRCUIT CONNECTIONS FROM THE SENSING COIL THROUGH THE MICROSWITCH TO THE INDICATING INSTRUMENT.
Claim 2
Independent Claim
104 words
AN APPARATUS FOR SENSING THE CHANGE IN PHASE IN A FLUID MEDIUM WITHIN A CONTAINER AND INDICATING THE CHANGE ON AN INDICATING INSTRUMENT COMPRISED BY A CASING HAVING A CHAMBER THEREIN AND A BORE FROM THE CHAMBER TO THE EXTERIOR OF THE CASING, A CAPSULE ON THE CASING OVER THE BORE AND ADAPTED TO EXTEND INTO THE CONTAINER, A SENSING COIL WITHIN THE CAPSULE, AN EXPANSIBLE ELEMENT WITHIN THE CHAMBER EXPOSED TO THE PRESSURE WITHIN THE LATTER, THE BORE AND THE CAPSULE, A MICROSWITCH OPERABLY CONNECTED TO THE EXPANSIBLE ELEMENT, AND CIRCUIT CONNECTIONS FROM THE SENSING COIL THROUGH THE MICROSWITCH TO THE INDICATING INSTRUMENT.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |