US4588023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for releasing heat
Assignee: Altemira Co Ltd
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Filing: 1984-02-17
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Granted: 1986-05-13
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Expires: 2004-02-17
Abstract
Abstract A heat releasing device comprises an extruded aluminum main body including a horizontal wall for attaching heat emitting elements thereto and a vertical wall formed with a large number of gouged fins on at least one of its opposite sides, and a heat pipe portion provided on or in the vertical wall. The heat released from heat emitting elements, such as semiconductor elements, mounted on the horizontal wall is absorbed by the main body, transferred to the heat pipe portion and then radiated from the fins on the vertical wall.
Inventors
- 👤 Masaaki Munekawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:52
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/611; F; F28; F28D; F28D15/00; F28D15/02; F28D15/0233; F28D15/0266; F28D15/0275; H10W40/70; H10W40/73; H10W40/20; H10W40/231; H10W40/235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A device for releasing heat comprising: (a) an extruded aluminum main body having a predetermined cross section and including a portion for attaching heat emitting elements thereto and a finned portion, and (b) a heat pipe portion provided in the vertical wall in the main body, the main body including a horizontal wall and a vertical wall, the horizontal wall serving as the portion for attaching heat emitting elements thereto, the vertical wall being formed with fins on at least one of the opposite sides to serve as the fin portion, having the heat pipe portion substantially entirely therethrough, and the heat pipe portion is provided by a hollow portion formed in the vertical wall itself, containing a working fluid enclosed therein, closed at its opposite ends and having a vacuum interior, said hollow portion has a horizontal partition wall permitting the upper and lower parts of the hollow portion to communicate with each other at its opposite ends to thereby form a looped channel including an upper passageway and a lower passageway.
Claim 2
Independent Claim
173 words
A device for releasing heat comprising: (a) an extruded aluminum main body having a predetermined cross section and including a portion for attaching heat emitting elements thereto and a finned portion, and (b) a heat pipe portion provided in the vertical wall in the main body, the main body including a horizontal wall and a vertical wall, the horizontal wall serving as the portion for attaching heat emitting elements thereto, the vertical wall being formed with fins on at least one of the opposite sides to serve as the fin portion, having the heat pipe portion substantially entirely therethrough, and the heat pipe portion is provided by a hollow portion formed in the vertical wall itself, containing a working fluid enclosed therein, closed at its opposite ends and having a vacuum interior, said hollow portion has a horizontal partition wall permitting the upper and lower parts of the hollow portion to communicate with each other at its opposite ends to thereby form a looped channel including an upper passageway and a lower passageway.
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) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |