Patent US5733308A successfully refreshed from Google Patents.
Patent US3590327A successfully refreshed from Google Patents.
US3590327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for maintaining uniform temperature conditions throughout a body
Assignee: Transcat Inc
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Filing: 1969-04-24
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Granted: 1971-06-29
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Expires: 1989-04-24
Abstract
Abstract The disclosure relates to a temperature regulating system for maintaining temperatures relatively constant throughout a capsule containing electronic components and for causing gradual change, if any, of temperature caused by changes in the outer environment. This is provided by placing the components in a high thermal conductivity material which is enclosed by a low thermal conductivity material. Electronic components and electrical components are glued and potted in apertures within the interior high thermal conductivity member by means of a substantially electrically nonconducting and thermally highly conductive material such as an epoxy filled with beryllium oxide. According to a second embodiment the inner capsule is molded from a high thermal conductivity ceramic such as aluminum oxide or beryllium oxide. It is also possible to encapsulate the components prior to baking of the ceramic material. According to a third embodiment, the electrical and electronic components are potted directly in a beryllium oxide epoxy which will keep the components mechanically rigid within the potting material. Such a material would have substantially no electrical conductivity and very high thermal conductivity.
Inventors
- 👤 Mauricio A Thomae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:39
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20509
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
74 words
A uniform temperature maintaining device retaining electrical components having outwardly extending leads, which comprises a solid high thermal conductivity inner capsule, a relatively low thermal conductivity outer shell completely encapsulating said capsule, said capsule including first apertures therein receiving said components having leads and said outer shell including second apertures through which pass the leads of said components, and a high thermal conductivity, low electrical conductivity material securing said components within said first apertures.
Claim 2
Dependent Claim
74 words
A uniform temperature maintaining device retaining electrical components having outwardly extending leads, which comprises a solid high thermal conductivity inner capsule, a relatively low thermal conductivity outer shell completely encapsulating said capsule, said capsule including first apertures therein receiving said components having leads and said outer shell including second apertures through which pass the leads of said components, and a high thermal conductivity, low electrical conductivity material securing said components within said first apertures.
Claim 3
Dependent Claim
26 words
A device according to the claim 1 wherein said material is taken from the class consisting of a beryllium oxide epoxy and an aluminum oxide epoxy.
Claim 4
Dependent Claim
25 words
A device according to claim 1 wherein said components are completely encapulated in said material and said capsule is formed of an electrically conductive material.
Claim 5
Dependent Claim
25 words
A device according to claim 2 wherein said components are completely encapulated in said material and said capsule is formed of an electrically conductive material.
Claim 6
Dependent Claim
22 words
A device as set forth in claim 1 further including a mica separator positioned in said capsule and electrically isolating areas thereof.
Claim 7
Dependent Claim
22 words
A device as set forth in claim 2 further including a mica separator positioned in said capsule and electrically isolating areas thereof.
Claim 8
Dependent Claim
26 words
A device as set forth in claim 1 wherein the ratio of thermal conductivity between said outer shell and said capsule is about 1 to 1000.
Claim 9
Dependent Claim
26 words
A device as set forth in claim 2 wherein the ratio of thermal conductivity between said outer shell and said capsule is about 1 to 1000.
Claim 10
Dependent Claim
26 words
A device as set forth in claim 3 wherein the ratio of thermal conductivity between said outer shell and said capsule is about 1 to 1000.
Claim 11
Dependent Claim
32 words
A uniform temperature maintaining device which comprises a high thermal conductivity beryllium oxide epoxy inner capsule having electrical components embedded therein and a relatively low thermal conductivity outer shell encapsulating said capsule.
Claim 12
Dependent Claim
32 words
A uniform temperature maintaining device which comprises a high thermal conductivity beryllium oxide epoxy inner capsule having electrical components embedded therein and a relatively low thermal conductivity outer shell encapsulating said capsule.
Claim 13
Dependent Claim
26 words
A device as set forth in claim 10 wherein the ratio of thermal conductivity between said outer shell and said capsule is about 1 to 1000.
Claim 14
Dependent Claim
57 words
A uniform temperature maintaining device which comprises a solid high thermal conductivity inner capsule, at least one electrical component having outwardly extending leads embedded therein and a low thermal conductivity shell encapsulating said capsule and initimate therewith at all outer surfaces of said capsule, wherein said capsule is formed from a high thermal conductivity beryllium oxide epoxy.
Claim 15
Dependent Claim
57 words
A uniform temperature maintaining device which comprises a solid high thermal conductivity inner capsule, at least one electrical component having outwardly extending leads embedded therein and a low thermal conductivity shell encapsulating said capsule and initimate therewith at all outer surfaces of said capsule, wherein said capsule is formed from a high thermal conductivity beryllium oxide epoxy.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |