US5288203A — Low profile fan body with heat transfer character…

Claim 1

Independent Claim 122 words

A cooling apparatus for an electronic device, comprising: an air movement device with a plurality of blades, said blades being circumferentially formed around a central axis, said blades establishing an axial blade depth region defined in reference to said central axis; and a heat transfer body, including means for supporting said air movement device a pressure differential surface formed around the outer perimeter of said air movement device within a first portion of said axial blade depth region; an interface surface for coupling to said electronic device; and a heat transfer surface disposed between said supporting means and said interface surface, said heat transfer surface being formed around said air movement device within a second portion of said axial blade depth region.

Claim 2

Dependent Claim 122 words

A cooling apparatus for an electronic device, comprising: an air movement device with a plurality of blades, said blades being circumferentially formed around a central axis, said blades establishing an axial blade depth region defined in reference to said central axis; and a heat transfer body, including means for supporting said air movement device a pressure differential surface formed around the outer perimeter of said air movement device within a first portion of said axial blade depth region; an interface surface for coupling to said electronic device; and a heat transfer surface disposed between said supporting means and said interface surface, said heat transfer surface being formed around said air movement device within a second portion of said axial blade depth region.

Claim 3

Dependent Claim 32 words

The apparatus of claim 1 further comprising: a plurality of heat path posts disposed between said supporting means and said interface surface within said second portion of said axial blade depth region.

Claim 4

Dependent Claim 25 words

The apparatus of claim 1 wherein said heat transfer surface includes a plurality of heat transfer surface members defining a corresponding plurality of slots therebetween.

Claim 5

Dependent Claim 14 words

The apparatus of claim 1 wherein said interface surface is a perimeter interface surface.

Claim 6

Dependent Claim 16 words

The apparatus of claim 1 wherein said pressure differential surface is formed within said supporting means.

Claim 7

Dependent Claim 16 words

The apparatus of claim 1 wherein said pressure differential surface is coupled to said supporting means.

Claim 8

Dependent Claim 117 words

A cooling apparatus for an electronic device, comprising: an air movement device formed around a central axis, said air movement device defining a device depth region in reference to said central axis; and a heat transfer body, including a pressure differential surface formed around the outer perimeter of said air movement device within a first portion of said device depth region, a frame for supporting said air movement device, said frame forming at least a portion of said pressure differential surface, and a heat transfer surface, coupled to said pressure differential surface, formed around said air movement device within a second portion of said device depth region, said cooling apparatus forcing air movement along said central axis.

Claim 9

Dependent Claim 117 words

A cooling apparatus for an electronic device, comprising: an air movement device formed around a central axis, said air movement device defining a device depth region in reference to said central axis; and a heat transfer body, including a pressure differential surface formed around the outer perimeter of said air movement device within a first portion of said device depth region, a frame for supporting said air movement device, said frame forming at least a portion of said pressure differential surface, and a heat transfer surface, coupled to said pressure differential surface, formed around said air movement device within a second portion of said device depth region, said cooling apparatus forcing air movement along said central axis.

Claim 10

Dependent Claim 19 words

The apparatus of claim 7 further comprising: a plurality of heat path posts positioned within said device depth region.

Claim 11

Dependent Claim 25 words

The apparatus of claim 7 wherein said heat transfer surface includes a plurality of heat transfer surface members defining a corresponding plurality of slots therebetween.

Claim 12

Dependent Claim 14 words

The apparatus of claim 7 wherein said interface surface is a perimeter interface surface.

Claim 13

Independent Claim 117 words

An apparatus for removing heat from a heat generating surface, comprising: an air movement device formed around a central axis, said air movement device defining a device depth region in reference to said central axis; and a heat transfer body, including an interface surface for coupling to said heat generating surface, a pressure differential surface formed around the outer perimeter of said air movement device within a first portion of said device depth region, a frame for supporting said air movement device, said frame forming at least a portion of said pressure differential surface, and a plurality of heat paths, positioned between said frame and said interface surface, within a second portion of said device depth region.

Claim 14

Independent Claim 117 words

An apparatus for removing heat from a heat generating surface, comprising: an air movement device formed around a central axis, said air movement device defining a device depth region in reference to said central axis; and a heat transfer body, including an interface surface for coupling to said heat generating surface, a pressure differential surface formed around the outer perimeter of said air movement device within a first portion of said device depth region, a frame for supporting said air movement device, said frame forming at least a portion of said pressure differential surface, and a plurality of heat paths, positioned between said frame and said interface surface, within a second portion of said device depth region.

Claim 15

Dependent Claim 21 words

The apparatus of claim 11 further comprising: a plurality of heat transfer surfaces positioned between said plurality of heat transfer paths.

Claim 16

Dependent Claim 27 words

The apparatus of claim 12 wherein each of said heat transfer surfaces includes a plurality of heat transfer surface members defining a corresponding plurality of slots therebetween.

Claim 17

Dependent Claim 14 words

The apparatus of claim 11 wherein said interface surface is a perimeter interface surface.

Claim 18

Independent Claim 99 words

A device for cooling an electronic component having an exposed surface, said device comprising: a heat transfer body adapted to be engaged with said surface, said body having an airflow passageway adapted to receive and discharge cooling air to cool said surface, and heat transfer means positioned in said air flow passageway to enhance the heat transfer capacity of said heat transfer body; and a means for moving air disposed in said passageway to create an air flow therethrough; said heat transfer body and said air moving means having substantially equal dimensions in a direction normal to said surface.

Claim 19

Independent Claim 99 words

A device for cooling an electronic component having an exposed surface, said device comprising: a heat transfer body adapted to be engaged with said surface, said body having an airflow passageway adapted to receive and discharge cooling air to cool said surface, and heat transfer means positioned in said air flow passageway to enhance the heat transfer capacity of said heat transfer body; and a means for moving air disposed in said passageway to create an air flow therethrough; said heat transfer body and said air moving means having substantially equal dimensions in a direction normal to said surface.

Claim 20

Dependent Claim 104 words

The device of claim 15 wherein: said air moving means is formed around a central axis and defines a device depth region in reference to said central axis; and said heat transfer body includes a base member for supporting said air moving means, said base member including said heat transfer means, said heat transfer means being formed around the outer perimeter of said air moving means within a first portion of said device depth region, and a pressure differential surface, coupled to said base member, formed around the outer perimeter of said air moving means within a second portion of said device depth region.

Claim 21

Dependent Claim 22 words

The device of claim 16 wherein said base member includes heat path posts within said first portion of said device depth region.

Claim 22

Dependent Claim 24 words

The device of claim 16 wherein said heat transfer means includes a plurality of heat transfer members defining a corresponding plurality of slots therebetween.

Claim 23

Dependent Claim 19 words

The device of claim 16 wherein said base member includes an interface surface for coupling to said exposed surface.

Claim 24

Dependent Claim 95 words

The device of claim 15 wherein said air moving means is formed around a central axis and defines a device depth region in reference to said central axis; and said heat transfer body includes an interface surface for coupling to said exposed surface, said interface surface including means for supporting said air moving means, a plurality of heat path posts vertically extending from said interface surface into said device depth region, and said heat transfer means supported by said heat path posts, said heat transfer means forming a surface substantially parallel to said interface surface.

Claim 25

Dependent Claim 24 words

The device of claim 20 wherein said heat transfer means includes a plurality of heat conduction channels converging into a central heat conduction region.

Claim 26

Dependent Claim 22 words

The device of claim 21 wherein said heat path posts are aligned with said heat conduction channels of said heat transfer surface.

Claim 27

Dependent Claim 25 words

The device of claim 20 wherein said heat transfer means includes a plurality of heat transfer members formed between each of said heat conduction channels.

Claim 28

Dependent Claim 17 words

The device of claim 20 wherein said heat transfer means extends into said axial blade depth region.

Claim 29

Dependent Claim 108 words

The device of claim 15 wherein: said air moving means includes a plurality of blades, said blades being circumferentially formed around a central axis, said blades establishing an axial blade depth region defined in reference to said central axis, said axial blade depth region including a first axial blade depth region and a second axial blade depth region; said heat transfer body includes a support device for holding said air moving means such that said first axial blade depth region is within said support device; and said heat transfer means are formed around the outer perimeter of said air movement means within said second axial blade depth region.

Claim 30

Dependent Claim 20 words

The device of claim 25 further including heat path posts formed within said heat transfer body within said non-extending region.

Claim 31

Dependent Claim 24 words

The device of claim 25 wherein said heat transfer means includes a plurality of heat transfer members defining a corresponding plurality of slots therebetween.

Claim 32

Dependent Claim 55 words

The device of claim 15 wherein: said air moving means includes a plurality of blades, said blades being circumferentially formed around a central axis; and said heat transfer body includes a discontinuous axial surface formed around said air moving means, said discontinuous axial surface including a plurality of surfaces axially displaced along said central axis.

Claim 33

Dependent Claim 19 words

The device of claim 28 wherein each of said plurality of surfaces is supported by a plurality of studs.

Claim 34

Dependent Claim 30 words

The device of claim 29 wherein said heat transfer body includes a substantially horizontal interface surface for coupling to said exposed surface, said interface surface supporting said plurality of studs.

Claim 35

Dependent Claim 17 words

The device of claim 28 wherein said interface surface includes means for supporting said air movement device.

Claim 36

Dependent Claim 18 words

The device of claim 28 wherein each of said plurality of surfaces of said axial surface is annular.

Claim 37

Dependent Claim 16 words

The device of claim 32 wherein each of said annular surfaces has a substantially arc-like cross-section.

Claim 38

Dependent Claim 83 words

The device of claim 15 wherein: said air movement means is formed around a central axis, said air movement means defining a device depth region in reference to said central axis; and said heat transfer body includes a plurality of vertically displaced circular members forming a discontinuous heat transfer surface around said air movement device along said device depth region, and a plurality of heat transfer structures extending along said device depth region, said heat transfer structures supporting said discontinuous heat transfer surface.

Claim 39

Dependent Claim 33 words

The device of claim 34 wherein said heat transfer body further includes a substantially horizontal interface surface for coupling to said exposed surface, said interface surface supporting said plurality of heat transfer structures.

Claim 40

Dependent Claim 17 words

The apparatus of claim 35 wherein said interface surface includes means for supporting said air movement means.

Claim 41

Dependent Claim 16 words

The apparatus of claim 34 wherein each of said circular members has a substantially arc-like cross-section.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1997-02-21	1997-08-23	1998-02-22	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2001-02-21	2001-08-23	2002-02-22	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2005-02-21	2005-08-23	2006-02-22	$7700.00	Window Closed / Lapsed

Low profile fan body with heat transfer characteristics

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