US3820352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporative coolant heat sink
Assignee: Individual
•
Filing: 1973-01-05
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Granted: 1974-06-28
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Expires: 1993-01-05
Abstract
Abstract An efficient localized heat sink for use in the assembly and disassembly of electronic circuits. An evaporative coolant is caused to flow to a thermally conductive fitting attached to an electronic component or element being protected. The evaporation of the coolant on the fitting causing cooling thereof and cooling of the associated circuit element in conductive relation therewith. The conducting fitting can be of various configurations to accommodate particular circuit elements to be cooled.
Inventors
- 👤 R Mahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2029; F; F25; F25D; F25D3/00; F25D3/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
226 words
A portable hand-held localized heat sink for electrical components comprising: a portable evaporative coolant supply including an aerosol container having a manually actuable supply valve coupled to a coolant outlet and operative to provide an intermittent supply of coolant upon manual actuation; at least one thermally conductive fitting adapted to be detachably affixed to at least one terminal of an electrical component to be cooled and in heat absorbing contact therewith; a flexible tube interconnecting the outlet of said aerosol container and said at least one thermally conductive fitting and having a passage for flow of coolant to said at least one thermally conductive fitting upon actuation of said supply valve; said at least one thermally conductive fitting including: a coupling attached to an end of said tube to permit flow of said coolant onto said fitting; a clip section adapted for removable attachment to said at least one terminal; and a thermally massive section having sufficient thermal mass to remain below a desired temperature for a predetermined period of time after having been cooled by application of coolant thereto; said coolant, upon actuation of said supply valve, flowing through said tube from said aerosol container and through said coupling onto said at least one fitting, to cool said at least one fitting to serve as a heat sink for said at least one electrical component.
Claim 2
Dependent Claim
226 words
A portable hand-held localized heat sink for electrical components comprising: a portable evaporative coolant supply including an aerosol container having a manually actuable supply valve coupled to a coolant outlet and operative to provide an intermittent supply of coolant upon manual actuation; at least one thermally conductive fitting adapted to be detachably affixed to at least one terminal of an electrical component to be cooled and in heat absorbing contact therewith; a flexible tube interconnecting the outlet of said aerosol container and said at least one thermally conductive fitting and having a passage for flow of coolant to said at least one thermally conductive fitting upon actuation of said supply valve; said at least one thermally conductive fitting including: a coupling attached to an end of said tube to permit flow of said coolant onto said fitting; a clip section adapted for removable attachment to said at least one terminal; and a thermally massive section having sufficient thermal mass to remain below a desired temperature for a predetermined period of time after having been cooled by application of coolant thereto; said coolant, upon actuation of said supply valve, flowing through said tube from said aerosol container and through said coupling onto said at least one fitting, to cool said at least one fitting to serve as a heat sink for said at least one electrical component.
Claim 3
Dependent Claim
34 words
A portable hand-held localized heat sink according to claim 1 wherein said at least one thermally conductive fitting comprises a plurality of fittings each connected to at least one lead of an electrical component.
Claim 4
Dependent Claim
80 words
A localized heat sink according to claim 1 wherein said at least one conductive fitting includes: a housing of thermally conductive material; a plurality of thermally conductive feet each operative to engage a respective lead of a multiple lead electrical component in thermal coupling relationship therewith; a fluid coupling connected to said fluid path and communicating with at least one passage provided along the length of said housing; said at least one passage having an opening communicative with the atmosphere.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |