US3735206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit board package with wedge shaped covers
Assignee: National Aeronautics and Space Administration
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Filing: 1971-10-28
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Granted: 1973-05-22
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Expires: 1991-10-28
Abstract
Abstract A circuit board mounting and packaging technique wherein each board is encased within a wedge-shaped foam package and the packages are combined in complementary pairs and inserted in chassis compartments.
Inventors
- 👤 C Pesek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:43
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1461; H05K7/20; H05K7/20536; H05K7/20545
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
A circuit board package assembly adapted for mounting in a chasis compartment comprising: a pair of circuit boards each having components mounted on one side thereof; a pair of covers for each circuit board, each of said pairs of covers forming a wedge in cross section and encasing one of said boards; one cover in each pair being contoured to fit over the component side of one of said boards and having apertures opposite component locations on the board and the other cover in each pair being contoured to fit over the other side of one board; a heat conductive layer mounted on the external surface of said one cover and protruding through said apertures; and means attached to said boards to provide relative movement thereof; the covered boards being disposed with a major portion of their sides in contact so that relative movement of the boards will effect a change in thickness of the assembly.
Claim 2
Dependent Claim
156 words
A circuit board package assembly adapted for mounting in a chasis compartment comprising: a pair of circuit boards each having components mounted on one side thereof; a pair of covers for each circuit board, each of said pairs of covers forming a wedge in cross section and encasing one of said boards; one cover in each pair being contoured to fit over the component side of one of said boards and having apertures opposite component locations on the board and the other cover in each pair being contoured to fit over the other side of one board; a heat conductive layer mounted on the external surface of said one cover and protruding through said apertures; and means attached to said boards to provide relative movement thereof; the covered boards being disposed with a major portion of their sides in contact so that relative movement of the boards will effect a change in thickness of the assembly.
Claim 3
Dependent Claim
16 words
The assembly of claim 1 wherein the other of said covers of each pair is tapered.
Claim 4
Dependent Claim
55 words
The assembly of claim 1 wherein the means attached to said boards to provide relative movement thereof comprises: a lug mounted on one of the boards; and a bracket holding a screw and mounted on the other board, the screw engaging the lug, relative movement of the covered boards being provided by turning the screw.
Claim 5
Dependent Claim
14 words
The assembly of claim 1, wherein said covers are made of polyurethane foam material.
Claim 6
Dependent Claim
31 words
The assembly of claim 1 wherein the heat conductive layer comprises two sub-layers of metal foil between which is placed metallic material forming raised pads which protrude through the apertured covers.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |