Patent US3203477A successfully refreshed from Google Patents.
US3203477A
Expired / Lapsed
US
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Cryogenic cooling devices
Assignee: TDK Micronas GmbH
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Filing: 1962-11-21
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Granted: 1965-08-31
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 Jacques R G Collard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:50
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/165; F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C3/085; F25; F25D; F25D3/00; F25D3/10; H01J25/00; H01J25/50; H01J25/52; H01J25/54; H01J25/55; H01J7/00; H01J7/24; H03; H03F; H03F1/00; H03F1/26; H03F1/28; H03F7/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0352; F17C2205/0358; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A COOLING DEVICE UTILIZING A COOLANT FOR COOLING AN ARTICLE COMPRISING: (A) A LIQUID COOLANT WHICH VAPORIZES WHEN IT ADSORBS HEAT; (B) A HEAT SINK; (C) MEANS FORMING A CYLINDRICAL CAVITY IN SAID HEAT SINK; (D) A DISC-SHAPED MEMBER DISPOSED IN CLOSURE RELATIONSHIP TO SAID CAVITY; (E) MEANS FORMING A FIRST CYLINDRICAL CHAMBER ATTACHED TO SAID DISC-SHAPEDS MEMBER AND DISPOSED WITHIN AND APART FROM THE WALLS OF SAID CAVITY; (F) MEANS FORMING A SECOND CYLINDRICAL CHAMBER, COUPLED TO SAID FIRST CYLINDRICAL CHAMBER AND DISPOSED WITHIN AND APART FROM THE WALLS OF SAID CAVITY, SAID SECOND CHAMBER BEING OPEN TO SAID FIRST CHAMBER; (G) MEANS FORMING A THIRD CYLINDRICAL CHAMBER ATTACHED TO SAID DISC-SHAPED MEMBER AND COAXIAL WITH SAID FIRST CHAMBER, SAID DISC-SHAPED MEMBER HAVING AN APERTURE THEREIN COMMUNICATING WITH SAID THIRD CHAMBER;
Claim 2
Dependent Claim
132 words
A COOLING DEVICE UTILIZING A COOLANT FOR COOLING AN ARTICLE COMPRISING: (A) A LIQUID COOLANT WHICH VAPORIZES WHEN IT ADSORBS HEAT; (B) A HEAT SINK; (C) MEANS FORMING A CYLINDRICAL CAVITY IN SAID HEAT SINK; (D) A DISC-SHAPED MEMBER DISPOSED IN CLOSURE RELATIONSHIP TO SAID CAVITY; (E) MEANS FORMING A FIRST CYLINDRICAL CHAMBER ATTACHED TO SAID DISC-SHAPEDS MEMBER AND DISPOSED WITHIN AND APART FROM THE WALLS OF SAID CAVITY; (F) MEANS FORMING A SECOND CYLINDRICAL CHAMBER, COUPLED TO SAID FIRST CYLINDRICAL CHAMBER AND DISPOSED WITHIN AND APART FROM THE WALLS OF SAID CAVITY, SAID SECOND CHAMBER BEING OPEN TO SAID FIRST CHAMBER; (G) MEANS FORMING A THIRD CYLINDRICAL CHAMBER ATTACHED TO SAID DISC-SHAPED MEMBER AND COAXIAL WITH SAID FIRST CHAMBER, SAID DISC-SHAPED MEMBER HAVING AN APERTURE THEREIN COMMUNICATING WITH SAID THIRD CHAMBER;
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |