US5396947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiating device
Assignee: Itoh Research & Development Laboratory Co Ltd
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Filing: 1993-03-01
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Granted: 1995-03-14
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Expires: 2013-03-01
Abstract
Abstract A radiating device 10 includes a radiating plate 11 having a flat bottom surface 12 serving as a heat receiving surface, a top surface 13, and a column 14 . Column 14 includes a protruding base portion 15 integrally connected to top surface 13 of radiating plate 11 and extending so as to protrude upward, a pipe 16 inserted into a hole of protruding base portion 15, a fin 19 secured to the upper portion of pipe 16 and a working fluid 17 serving as head carrier introduced into pipe 16.
Inventors
- 👤 Akira Itoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:58
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W40/73; F; F28; F28D; F28D15/00; F28D15/02; F28D15/0275; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49353
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
114 words
A radiating device, comprising a radiating plate having a flat bottom surface serving as a heat receiving surface, a top surface comprising an inclining surface extending at an angle inclined to the bottom surface, a plurality of columns extending so as to protrude upward from said inclining surface of the top surface at an angle inclined to the bottom surface, and a respective plurality of fins arranged on each column of said plurality of columns at a first end thereof, wherein each column of said plurality of columns has a cylindrical portion at a second end and has a passage in said column for circulating gas and liquid to serve as a heat pipe.
Claim 2
Dependent Claim
114 words
A radiating device, comprising a radiating plate having a flat bottom surface serving as a heat receiving surface, a top surface comprising an inclining surface extending at an angle inclined to the bottom surface, a plurality of columns extending so as to protrude upward from said inclining surface of the top surface at an angle inclined to the bottom surface, and a respective plurality of fins arranged on each column of said plurality of columns at a first end thereof, wherein each column of said plurality of columns has a cylindrical portion at a second end and has a passage in said column for circulating gas and liquid to serve as a heat pipe.
Claim 3
Dependent Claim
21 words
The radiating device according to claim 1, wherein said plurality of columns is arranged in a matrix on said radiating plate.
Claim 4
Dependent Claim
131 words
The radiating device according to claim 1, wherein each said column includes a protruding base portion integrally connected to the top surface of said radiating plate and extending so as to protrude upward, and having a hole extending from an upper end surface of said protruding base portion to the vicinity of the bottom surface of said radiating plate, a pipe having its lower portion inserted into the hole of said protruding base portion and its upper portion further protruding upward above the upper end surface of said base portion, and a working fluid as heat carrier introduced into said pipe, wherein said lower portion of said pipe and said protruding base portion together form said cylindrical portion of said column, and wherein said upper portion has said fins arranged thereon.
Claim 5
Dependent Claim
20 words
The radiating device according to claim 1, wherein each fin of said plurality of fins has a circular planar shape.
Claim 6
Dependent Claim
20 words
The radiating device according to claim 1, wherein each fin of said plurality of fins has a rectangular planar shape.
Claim 7
Dependent Claim
34 words
The radiating device according to claim 1, wherein each fin of said plurality of fins is arranged to extend on a respective plane substantially perpendicular to a direction of said extending of said column.
Claim 8
Dependent Claim
32 words
The radiating device according to claim 1, wherein said column defines an enclosed space and contains a working fluid of about 15% to about 18% of the volume of said enclosed space.
Claim 9
Dependent Claim
59 words
A radiating device comprising a radiating plate having a flat bottom surface serving as a heat receiving surface and a top surface inclined at an angle to the bottom surface, said device further comprising a heat pipe column having a fluid flow passage therein, said column extending from the top surface at an angle inclined to the bottom surface.
Claim 10
Dependent Claim
59 words
A radiating device comprising a radiating plate having a flat bottom surface serving as a heat receiving surface and a top surface inclined at an angle to the bottom surface, said device further comprising a heat pipe column having a fluid flow passage therein, said column extending from the top surface at an angle inclined to the bottom surface.
Claim 11
Dependent Claim
15 words
The radiating device according to claim 8, comprising a plurality of said heat pipe columns.
Claim 12
Dependent Claim
34 words
The radiating device according to claim 9, comprising a plurality of non-coplanar top surface portions, each inclined at an angle to the bottom surface and arranged in a stepped manner relative to each other.
Claim 13
Dependent Claim
21 words
The radiating device according to claim 8, further comprising a plurality of fins arranged on a free end of said column.
Claim 14
Dependent Claim
34 words
The radiating device according to claim 11, wherein each fin of said plurality of fins is arranged to extend on a respective plane substantially perpendicular to a direction of said extending of said column.
Claim 15
Dependent Claim
37 words
The radiating device of claim 8, wherein said heat pipe column defines an enclosed space and said heat pipe column contains a working fluid of about 15% to about 18% of the volume of said enclosed space.
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) | 1998-03-13 | 1998-09-12 | 1999-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-13 | 2002-09-12 | 2003-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-13 | 2006-09-12 | 2007-03-14 | $7700.00 | Window Closed / Lapsed |