US6152214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling device and method
Assignee: Avago Technologies International Sales Pte Ltd
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Filing: 1999-09-03
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Granted: 2000-11-28
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Expires: 2019-09-03
Abstract
Abstract A fan assisted heat sink cooling device is disclosed in which the heat sink assembly also forms the housing surrounding the fan. The housing is constructed of a plurality of cooling vanes which have elongated openings therebetween allowing air to pass between and cool the vanes. The vanes are angled in an approximately opposite manner to the orientation of the fan blades in order to minimize the noise generated by the cooling device when in operation. The cooling device operates in an extremely efficient manner by causing air to pass over the cooling vanes twice.
Inventors
- 👤 Guy R. Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:57
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
203 words
A method of removing heat from a heat source by contacting said heat source with a substantially planar surface of a cooling device, said method comprising: providing said cooling device having: a) said substantially planar surface; b) a cooling device central axis which is substantially perpendicular to said substantially planar surface; c) a fan including a plurality of fan blades attached to a rotatable hub, said plurality of fan blades defining a fan blade swept space when said rotatable hub is rotating; d) at least one second surface, at least a portion of said at least one second surface being located between said fan blade swept space and said substantially planar surface; e) wherein said at least one second surface includes a first point lying thereon and a second point lying thereon and wherein said second point is further from said cooling device central axis than said first point; and f) wherein said first point is further from said substantially planar surface than said second point; moving air through said cooling device in a first direction; and causing said air to change direction to a second direction by contacting at least a portion of said air with said at least one second surface.
Claim 2
Independent Claim
203 words
A method of removing heat from a heat source by contacting said heat source with a substantially planar surface of a cooling device, said method comprising: providing said cooling device having: a) said substantially planar surface; b) a cooling device central axis which is substantially perpendicular to said substantially planar surface; c) a fan including a plurality of fan blades attached to a rotatable hub, said plurality of fan blades defining a fan blade swept space when said rotatable hub is rotating; d) at least one second surface, at least a portion of said at least one second surface being located between said fan blade swept space and said substantially planar surface; e) wherein said at least one second surface includes a first point lying thereon and a second point lying thereon and wherein said second point is further from said cooling device central axis than said first point; and f) wherein said first point is further from said substantially planar surface than said second point; moving air through said cooling device in a first direction; and causing said air to change direction to a second direction by contacting at least a portion of said air with said at least one second surface.
Claim 3
Dependent Claim
24 words
The method of claim 1 wherein said moving air through said cooling device in a first direction comprises moving said air with said fan.
Claim 4
Dependent Claim
16 words
The method of claim 1 wherein said second direction is substantially perpendicular to said fist direction.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said first direction is substantially parallel to said cooling device central axis.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein said at least one second surface is curved.
Claim 7
Dependent Claim
16 words
The method of claim 1 wherein said at least one second surface has a circular profile.
Claim 8
Dependent Claim
16 words
The method of claim 6 wherein said circular profile has a radius of about 2 inches.
Claim 9
Dependent Claim
26 words
The method of claim 1 wherein said fan rotatable hub is rotatable about a rotation axis which is substantially parallel to said cooling device central axis.
Claim 10
Dependent Claim
18 words
The method of claim 8 wherein said rotation axis is substantially coincident with said cooling device central axis.
Claim 11
Dependent Claim
18 words
The method of claim 1 wherein said at least one second surface comprises a plurality of second surfaces.
Claim 12
Dependent Claim
166 words
A cooling device for dissipating heat from a heat source, said cooling device being the type in which a first surface of said cooling device is adapted to contact said heat source, said cooling device comprising: a) said first surface; b) a fan including: a fan hub rotatable about a fan rotation axis; and a plurality of fan blades attached to said fan hub, said plurality of fan blades defining a fan blade swept space when said fan hub rotates about said fan rotation axis; c) at least one second surface, at least a portion of said at least one second surface being located between said fan blade swept space and said first surface; d) wherein said at least one second surface includes a first point lying thereon and a second point lying thereon and wherein said second point is further from said fan rotation axis than said first point; and e) wherein said first point is further from said first surface than said second point.
Claim 13
Dependent Claim
166 words
A cooling device for dissipating heat from a heat source, said cooling device being the type in which a first surface of said cooling device is adapted to contact said heat source, said cooling device comprising: a) said first surface; b) a fan including: a fan hub rotatable about a fan rotation axis; and a plurality of fan blades attached to said fan hub, said plurality of fan blades defining a fan blade swept space when said fan hub rotates about said fan rotation axis; c) at least one second surface, at least a portion of said at least one second surface being located between said fan blade swept space and said first surface; d) wherein said at least one second surface includes a first point lying thereon and a second point lying thereon and wherein said second point is further from said fan rotation axis than said first point; and e) wherein said first point is further from said first surface than said second point.
Claim 14
Dependent Claim
15 words
The cooling device of claim 11, wherein said first surface is a substantially planar surface.
Claim 15
Dependent Claim
22 words
The cooling device of claim 12 and further including a cooling device central axis which is substantially perpendicular to said first surface.
Claim 16
Dependent Claim
19 words
The cooling device of claim 11 wherein said at least one second surface comprises a plurality of second surfaces.
Claim 17
Dependent Claim
15 words
The cooling device of claim 11 wherein said at least one second surface is curved.
Claim 18
Dependent Claim
17 words
The cooling device of claim 11 wherein said at least one second surface has a circular profile.
Claim 19
Dependent Claim
17 words
The cooling device of claim 16 wherein said circular profile has a radius of about 2 inches.
Claim 20
Dependent Claim
20 words
The cooling device of claim 13 wherein said fan rotation axis is substantially parallel to said cooling device central axis.
Claim 21
Dependent Claim
20 words
The cooling device of claim 13 wherein said fan rotation axis is substantially coincident with said cooling device central axis.
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) | 2003-11-28 | 2004-05-29 | 2004-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-28 | 2008-05-29 | 2008-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-28 | 2012-05-29 | 2012-11-28 | $7700.00 | Window Closed / Lapsed |