US3180989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic flask for a cooled infrared detector including an evacuated space for the infrared detector
Assignee: Lockheed Martin Corp
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Filing: 1962-01-11
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Granted: 1965-04-27
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Expires: 1982-01-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Ross Lowell Hand
- 👤 Russell C Sessing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:28
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/06; G01J5/061; F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C3/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A CRYOGENIC FLASK FOR COOLED INFRARED DETECTORS, COMPRISING: A DOUBLE WALLED VESSEL DEFINING AN INNER CONTAINER SPACED APART FROM AN OUTER CONTAINER, THE SPACE THEREBETWEEN BEING EVACUATED, SAID INNER CONTAINER BEING ADAPTED TO CONTAIN A CRYOGENIC FLUID IN DIRECT CONTACT AND HEAT EXCHANGE RELATION THEREWITH; INFRARED RESPONSIVE MEANS SECURED TO SAID INNER CONTAINER AND IN SAID SPACE SO AS TO BE COOLED BY SAID INNER CONTAINER AND ADAPTED TO BE CONNECTED TO AN ELECTRICAL CIRCUIT EXTENDING EXERIORLY OF SAID OUTER CONTAINER; SAID OUTER CONTAINER INCLUDING A WALL ADJACENT TO SAID INFRARED RESPONSIVE MEANS; AND WINDOW MEANS FORMING AT LEAST A PORTION OF SAID WALL AND BEING SECURED IN SEALED RELATIONSHIP TO SAID OUTER CONTAINER, SAID WINDOW MEANS BEING OF A MATERIAL TRANSMITTING INFRARED ENERGY IN A PREDTERMINED WAVE LENGTH REGION DETECTABLE BY SAID INFRARED RESPONSIVE MEANS.
Claim 2
Dependent Claim
136 words
A CRYOGENIC FLASK FOR COOLED INFRARED DETECTORS, COMPRISING: A DOUBLE WALLED VESSEL DEFINING AN INNER CONTAINER SPACED APART FROM AN OUTER CONTAINER, THE SPACE THEREBETWEEN BEING EVACUATED, SAID INNER CONTAINER BEING ADAPTED TO CONTAIN A CRYOGENIC FLUID IN DIRECT CONTACT AND HEAT EXCHANGE RELATION THEREWITH; INFRARED RESPONSIVE MEANS SECURED TO SAID INNER CONTAINER AND IN SAID SPACE SO AS TO BE COOLED BY SAID INNER CONTAINER AND ADAPTED TO BE CONNECTED TO AN ELECTRICAL CIRCUIT EXTENDING EXERIORLY OF SAID OUTER CONTAINER; SAID OUTER CONTAINER INCLUDING A WALL ADJACENT TO SAID INFRARED RESPONSIVE MEANS; AND WINDOW MEANS FORMING AT LEAST A PORTION OF SAID WALL AND BEING SECURED IN SEALED RELATIONSHIP TO SAID OUTER CONTAINER, SAID WINDOW MEANS BEING OF A MATERIAL TRANSMITTING INFRARED ENERGY IN A PREDTERMINED WAVE LENGTH REGION DETECTABLE BY SAID INFRARED RESPONSIVE MEANS.
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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |