US5265670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convection transfer system
Assignee: International Business Machines Corp
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Filing: 1990-04-27
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Granted: 1993-11-30
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Expires: 2010-04-27
Abstract
Abstract A system provides convective transfer from a workpiece to a flowing fluid. A gap is formed between the workpiece and a facesheet containing fluid supply nozzles and fluid return nozzles. The fluid is fed to the supply nozzles, travels a short distance within the gap adjacent to the facesheet, and exits via return nozzles. The flow cross section and flow density facilitate heat transfer at a moderate flow rate and low fluid pressure. The system is also applicable for chemical transfer such as plating or etching printed circuit boards and for transfer through a semi-permeable membrane.
Inventors
- 👤 Arthur R. Zingher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:54
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/02; H; H01; H01M; H01M8/00; H01M8/04; H01M8/04007; H01M8/04067; H01M8/04074; H10; H10W; H10W40/00; H10W40/30; H10W40/305; H10W40/40; H10W40/47; H10W40/475; H05; H05K; H05K3/00; H05K3/0085; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
112 words
A system for convective transfer from a smooth coldsheet comprising: fluid supply means including a plurality of supply nozzles; fluid return means including a plurality of return nozzles; and a facesheet coupled to said fluid supply means and said fluid return means disposed opposite the smooth coldsheet thereby forming a gap between said facesheet and the coldsheet so that a fluid flows through said fluid supply means and said plurality of supply nozzles along short segments through the gap and through said plurality of return nozzles and said fluid return means, where the length of said segment is less than approximately 32 times the gap distance between said facesheet and the coldsheet.
Claim 2
Independent Claim
112 words
A system for convective transfer from a smooth coldsheet comprising: fluid supply means including a plurality of supply nozzles; fluid return means including a plurality of return nozzles; and a facesheet coupled to said fluid supply means and said fluid return means disposed opposite the smooth coldsheet thereby forming a gap between said facesheet and the coldsheet so that a fluid flows through said fluid supply means and said plurality of supply nozzles along short segments through the gap and through said plurality of return nozzles and said fluid return means, where the length of said segment is less than approximately 32 times the gap distance between said facesheet and the coldsheet.
Claim 3
Dependent Claim
19 words
A system as set forth in claim 1, wherein the Reynold's number of said gap is less than 300.
Claim 4
Dependent Claim
26 words
A system as set forth in claim 1, wherein the gap thickness is less than 0.5 mm and each segment length is less than 10 mm.
Claim 5
Dependent Claim
62 words
A system as set forth in claim 1, wherein said gap has a hydraulic diameter and said supply means has a hydraulic diameter, further the Reynolds' number of the gap is less than 100 and the length of said segment is less than 8 times the lesser of the hydraulic diameter of said gap and the hydraulic diameter of said supply means.
Claim 6
Dependent Claim
43 words
A system as set forth in claim 1, wherein said gap has a hydraulic diameter and the Reynolds' number of the gap is less than 100 and the length of said segment is less than 8 times the hydraulic diameter of said gap.
Claim 7
Dependent Claim
21 words
A system as set forth in claim 1, wherein said fluid supply means and said fluid return means further comprise conduits.
Claim 8
Dependent Claim
16 words
A system as set forth in claim 6, wherein said nozzle and said conduit are slotted.
Claim 9
Dependent Claim
13 words
A system as set forth in claim 6, wherein said nozzle is round.
Claim 10
Dependent Claim
18 words
A system as set forth in claim 6, wherein said nozzle is in the form of a grid.
Claim 11
Dependent Claim
18 words
A system as set forth in claim 6, wherein said conduit is in the form of a grid.
Claim 12
Dependent Claim
24 words
A system as set forth in claim 1, further comprising spacer means disposed between said facesheet and the coldsheet for determining the gap thickness.
Claim 13
Dependent Claim
29 words
A system as set forth in claim 1, wherein said fluid supply means, said fluid return means and said facesheet are coupled for providing personalized cooling of the coldsheet.
Claim 14
Dependent Claim
13 words
A system as set forth in claim 12, further comprising a personalized barrier.
Claim 15
Dependent Claim
28 words
A system as set forth in claim 1, further comprising a compliant manifold and said fluid supply means and said fluid return means are disposed in said manifold.
Claim 16
Dependent Claim
13 words
A system as set forth in claim 1, wherein the fluid is cryogenic.
Claim 17
Independent Claim
104 words
A system for convective transfer comprising: a plurality of fluid supply means; a plurality of fluid return means; and a facesheet coupled to said plurality of fluid supply means and said plurality of fluid return means whereby when said facesheet is disposed opposite a smooth coldsheet a plurality of gaps are formed therebetween so that a fluid flows through said plurality of fluid supply means, through a plurality of topologically parallel flow segments through the plurality of gaps and through said plurality of fluid return means, where said segments are less than approximately 32 times the gap formed between said facesheet and the coldsheet.
Claim 18
Independent Claim
104 words
A system for convective transfer comprising: a plurality of fluid supply means; a plurality of fluid return means; and a facesheet coupled to said plurality of fluid supply means and said plurality of fluid return means whereby when said facesheet is disposed opposite a smooth coldsheet a plurality of gaps are formed therebetween so that a fluid flows through said plurality of fluid supply means, through a plurality of topologically parallel flow segments through the plurality of gaps and through said plurality of fluid return means, where said segments are less than approximately 32 times the gap formed between said facesheet and the coldsheet.
Claim 19
Dependent Claim
20 words
A system as set forth in claim 16, wherein said plurality of fluid supply means have a narrow hydraulic diameter.
Claim 20
Dependent Claim
18 words
A system as set forth in claim 16, wherein said plurality of gaps have a small hydraulic diameter.
References Cited (Backward Citations)
US3361195A
Cited
US3405323A
Cited
US3626252A
Cited
US4072188A
Cited
US4109707A
Cited
US4069497A
Cited
US4092697A
Cited
US4151547A
Cited
US4233645A
Cited
US4323914A
Cited
US4258411A
Cited
US4226281A
Cited
US4254431A
Cited
US4341432A
Cited
US4381032A
Cited
US4462462A
Cited
US4607277A
Cited
US4546409A
Cited
US4494171A
Cited
US4561011A
Cited
US4551787A
Cited
US4558395A
Cited
US4531146A
Cited
US4730665A
Cited
US4602314A
Cited
US4567505A
Cited
US4612601A
Cited
US4729060A
Cited
US4639829A
Cited
US4561040A
Cited
US4635709A
Cited
US4758926A
Cited
US4730666A
Cited
US4838041A
Cited
US4866570A
Cited
US4909315A
Cited
US4940085A
Cited
US5016090A
Cited
US5088005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-29 | 1997-05-31 | 1997-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-29 | 2001-05-31 | 2001-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-29 | 2005-05-31 | 2005-11-30 | $7700.00 | Window Closed / Lapsed |