US4837664A
Expired / Lapsed
US
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Building block composite design and method of making for RF line replaceable modules
Assignee: Northrop Grumman Corp
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Filing: 1988-09-12
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Granted: 1989-06-06
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Expires: 2008-09-12
Abstract
Abstract A thermal heat transfer member is disclosed for use in electronic or microwave systems with particular application to advanced avionic systems. This thermal heat transfer member for line replaceable module (LRM) comprises; a bottom cover, a grid partition bottom means, a solid thermal plane material fixedly interconnected to the grid partition bottom means, a grid partition top means fixedly interconnected upon the thermal plane, sandwiching the thermal plane between the grid partition top and the grid partition bottom, and finally, a top cover. The utilization of a "building block" approach and composite high strength heat-conductive materials designed to dissipate heat away from electronic devices and components mounted within the LRM operate to produce a radio frequency LRM of high heat conductivity with reduced weight ideal for utilization in advanced development avionic systems subject to extreme G-force and stress in avionic system operation.
Inventors
- 👤 II Noe E. Rodriguez
- 👤 William T. Flaherty, Jr.
- 👤 Sharon A. Duggan
- 👤 Timothy M. Fertig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:42
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1461; H05K7/20; H05K7/20536; H05K7/20545
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
265 words
A line replaceable electronic module, comprising: a planar thermal means, said planar thermal means having a first and a second face, said planar thermal means being operable to dissipate heat away from a multiplicity of electronic components mounted upon said first face of said planar thermal means to the edges of said planar thermal means during said module operation, said planar thermal means comprising a heat conducting composite material; a planar grid partition top, said planar grid partition top being fixedly interconnected to said first face of said planar thermal means, said planar grid partition top being operable to provide structural support to said planar thermal means, said planar grid partition top comprising a molded composite material; a planar grid partition bottom, said planar grid partition bottom being fixedly interconnected to said second face of said planar thermal means, and further said planar grid partition bottom being operable to provide structural support to said planar thermal means, said planar grid partition bottom comprising a molded composite material; a planar top cover, said planar top cover being fixedly interconnected to said planar grid partition top, said planar top cover being operable to enclose and protect said electronic components mounted upon said first face of said thermal plane, said planar top cover comprising a molded composite material; and, a planar bottom cover, said planar bottom cover being fixedly interconnected to said planar grid partition bottom, said planar bottom cover comprising a molded composite material said planar bottom cover being operable to enclose and protect said second face of said thermal plane during line replaceable electronic module operation.
Claim 2
Dependent Claim
265 words
A line replaceable electronic module, comprising: a planar thermal means, said planar thermal means having a first and a second face, said planar thermal means being operable to dissipate heat away from a multiplicity of electronic components mounted upon said first face of said planar thermal means to the edges of said planar thermal means during said module operation, said planar thermal means comprising a heat conducting composite material; a planar grid partition top, said planar grid partition top being fixedly interconnected to said first face of said planar thermal means, said planar grid partition top being operable to provide structural support to said planar thermal means, said planar grid partition top comprising a molded composite material; a planar grid partition bottom, said planar grid partition bottom being fixedly interconnected to said second face of said planar thermal means, and further said planar grid partition bottom being operable to provide structural support to said planar thermal means, said planar grid partition bottom comprising a molded composite material; a planar top cover, said planar top cover being fixedly interconnected to said planar grid partition top, said planar top cover being operable to enclose and protect said electronic components mounted upon said first face of said thermal plane, said planar top cover comprising a molded composite material; and, a planar bottom cover, said planar bottom cover being fixedly interconnected to said planar grid partition bottom, said planar bottom cover comprising a molded composite material said planar bottom cover being operable to enclose and protect said second face of said thermal plane during line replaceable electronic module operation.
Claim 3
Dependent Claim
35 words
A line replaceable electronic module as in claim 1, wherein said planar grid partition top, said planar grid partition bottom, said planar top cover and said planar bottom cover further comprise a reinforced plastic material.
Claim 4
Dependent Claim
36 words
A line replaceable electronic module as in claim 1, wherein said planar grid partition top and said planar grid partition bottom are fabricated of standard moldings, said standard moldings operable to be machined to predetermined configurations.
Claim 5
Dependent Claim
23 words
A line replaceable electronic module as in claim 1, wherein said planar grid partition top is comprised of a heat conducting composite material.
Claim 6
Dependent Claim
23 words
A line replaceable electronic module as in claim 1, wherein said planar grid partition bottom is comprised of a heat conducting composite material.
Claim 7
Dependent Claim
28 words
A line replaceable electronic module as in claim 1, wherein said planar thermal means has said electronic components mounted upon said second face of said planar thermal means.
Claim 8
Dependent Claim
21 words
A line replaceable electronic module as in claim 2, wherein said planar grid partition top further comprises electronic components mounted thereon.
Claim 9
Dependent Claim
21 words
A line replaceable electronic module as in claim 3, wherein said planar grid partition bottom further comprises electronic components mounted thereon.
Claim 10
Dependent Claim
28 words
A line replaceable electronic module as in claim 1, wherein said electronic components mounted upon said first face of said planar thermal means are radio frequency electronic components.
Claim 11
Dependent Claim
286 words
A line replaceable electronic module, comprising: a planar thermal means, said planar thermal means having a first and a second face, said planar thermal means being operable to dissipate heat away from a multiplicity of electronic components mounted upon said first and said second faces of said planar thermal means during said module operation to the edges of said planar thermal means, said planar thermal means comprising a heat conducting pitch based carbon fiber in epoxy composite material; a planar grid partition top, said planar grid partition top being fixedly interconnected to said first face of said planar thermal means, said planar grid partition top comprising a reinforced plastic material fabricated from a standard mold, said planar grid partition top being operable to provide structural support to said planar thermal means; a planar grid partition bottom, said planar grid partition bottom being fixedly interconnected to said second face of said planar thermal, said planar grid partition bottom comprising a reinforced plastic material fabricated from a standard mold, said planar grid partition bottom being operable to provide structural support to said planar thermal means; a planar top cover, said planar top cover being fixedly interconnected to said planar grid partition top, said planar top cover comprising a reinforced plastic material, said planar top cover being operable to enclose and protect said electronic components mounted upon said first face of said planar thermal means; and a planar bottom cover, said planar bottom cover being fixedly interconnected to said planar grid partition bottom, said planar grid partition bottom cover comprising a reinforced plastic, said planar bottom cover being operable to enclose and protect said electronic components mounted upon said second face of said planar thermal means during module operation.
Claim 12
Dependent Claim
286 words
A line replaceable electronic module, comprising: a planar thermal means, said planar thermal means having a first and a second face, said planar thermal means being operable to dissipate heat away from a multiplicity of electronic components mounted upon said first and said second faces of said planar thermal means during said module operation to the edges of said planar thermal means, said planar thermal means comprising a heat conducting pitch based carbon fiber in epoxy composite material; a planar grid partition top, said planar grid partition top being fixedly interconnected to said first face of said planar thermal means, said planar grid partition top comprising a reinforced plastic material fabricated from a standard mold, said planar grid partition top being operable to provide structural support to said planar thermal means; a planar grid partition bottom, said planar grid partition bottom being fixedly interconnected to said second face of said planar thermal, said planar grid partition bottom comprising a reinforced plastic material fabricated from a standard mold, said planar grid partition bottom being operable to provide structural support to said planar thermal means; a planar top cover, said planar top cover being fixedly interconnected to said planar grid partition top, said planar top cover comprising a reinforced plastic material, said planar top cover being operable to enclose and protect said electronic components mounted upon said first face of said planar thermal means; and a planar bottom cover, said planar bottom cover being fixedly interconnected to said planar grid partition bottom, said planar grid partition bottom cover comprising a reinforced plastic, said planar bottom cover being operable to enclose and protect said electronic components mounted upon said second face of said planar thermal means during module operation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |