US3663779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed electrical package
Assignee: Datanetics Corp
•
Filing: 1969-05-12
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Granted: 1972-05-16
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Expires: 1989-05-12
Abstract
Abstract A substantially sealed and pressure compensated electrical package including a limp bladder in fluid communication with a module having electrical switching elements, the bladder being capable of substantially stress free inflation and deflation in response to changes in external environment pressures, without any fluid exchange between the module and the environment, whereby protection against toxic atmospheres is provided and inadvertent switching due to environmental pressure changes is avoided.
Inventors
- 👤 Richard K Gerlach
- 👤 Meryl E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:16
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/50; F16J15/52; H; H01; H01H; H01H13/00; H01H13/70; H01H13/702; H01H2213/00; H01H2213/01; H01H2213/014; H01H2223/00; H01H2223/002; H01H2223/01; H01H2223/022
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
65 words
An electrical package, comprising: electrical apparatus; and bladder means in fluid communication with said electrical apparatus for pressure compensating and substantially sealing said electrical apparatus against the fluid environment external to the package, said bladder means being normally in a limp, deflated state, and the dimensions of said bladder means enabling substantially stress free inflation of said bladder means in pressure compensating said electrical apparatus.
Claim 2
Dependent Claim
65 words
An electrical package, comprising: electrical apparatus; and bladder means in fluid communication with said electrical apparatus for pressure compensating and substantially sealing said electrical apparatus against the fluid environment external to the package, said bladder means being normally in a limp, deflated state, and the dimensions of said bladder means enabling substantially stress free inflation of said bladder means in pressure compensating said electrical apparatus.
Claim 3
Dependent Claim
19 words
An electrical package as set forth in claim 1, wherein said electrical apparatus includes at least one switching device.
Claim 4
Dependent Claim
31 words
An electrical package as set forth in claim 1, wherein said electrical apparatus includes at least one electrical switching means adapted to be actuated by additional means external to the package.
Claim 5
Dependent Claim
32 words
An electrical package as set forth in claim 1, wherein said bladder means includes: a bladder casing containing said electrical apparatus; and a bladder bellows in fluid communication with said bladder casing.
Claim 6
Dependent Claim
47 words
An electrical package, comprising: electrical apparatus; and sealed elastomeric bladder means in fluid communication with said electrical apparatus for pressure compensating and substantially sealing said electrical apparatus against the fluid environment external to the package, at least a portion of said bladder means encasing said electrical apparatus.
Claim 7
Dependent Claim
47 words
An electrical package, comprising: electrical apparatus; and sealed elastomeric bladder means in fluid communication with said electrical apparatus for pressure compensating and substantially sealing said electrical apparatus against the fluid environment external to the package, at least a portion of said bladder means encasing said electrical apparatus.
Claim 8
Dependent Claim
42 words
An electrical package as set forth in claim 5, wherein said bladder means is normally in a limp, deflated state, and the dimensions of said bladder means enable substantially stress free inflation of said bladder means in pressure compensating said electrical apparatus.
Claim 9
Dependent Claim
19 words
An electrical package as set forth in claim 6, wherein said electrical apparatus includes at least one switching device.
Claim 10
Dependent Claim
31 words
An electrical package as set forth in claim 6, wherein said electrical apparatus includes at least one electrical switching means adapted to be actuated by additional means external to the package.
Claim 11
Dependent Claim
32 words
An electrical package as set forth in claim 7, wherein said bladder means includes: a bladder casing containing said electrical apparatus; and a bladder bellows in fluid communication with said bladder casing.
Claim 12
Dependent Claim
33 words
An electrical package, comprising: electrical apparatus; a sealed, flexible first bladder means encasing said electrical apparatus; and a sealed, flexible, normally limp second bladder means in fluid communication with said first bladder means.
Claim 13
Dependent Claim
33 words
An electrical package, comprising: electrical apparatus; a sealed, flexible first bladder means encasing said electrical apparatus; and a sealed, flexible, normally limp second bladder means in fluid communication with said first bladder means.
Claim 14
Dependent Claim
26 words
An electrical package as set forth in claim 10, wherein said first bladder means comprises a pair of elastomeric sheets joined together along their peripheral edges.
Claim 15
Dependent Claim
33 words
An electrical package as set forth in claim 10, wherein said second bladder means includes at least one bladder section defined by a pair of elastomeric sheets joined together along their peripheral edges.
Claim 16
Dependent Claim
28 words
An electrical package as set forth in claim 10, wherein said second bladder means includes a plurality of normally limp bladder sections defining a normally limp bladder bellows.
Claim 17
Dependent Claim
19 words
An electrical package as set forth in claim 10, wherein said electrical apparatus includes at least one switching device.
Claim 18
Dependent Claim
33 words
An electrical package as set forth in claim 12, wherein said electrical apparatus includes at least one electrical switching means adapted to be actuated by additional means external to said first bladder means.
Claim 19
Dependent Claim
48 words
An electrical package, comprising: a multilayer electrical circuit assembly, said circuit assembly including at least one circuit portion adapted to be switched by means external to the package; and substantially sealed, elastomeric, normally limp bladder means, at least a portion of said bladder means encasing said circuit assembly.
Claim 20
Dependent Claim
48 words
An electrical package, comprising: a multilayer electrical circuit assembly, said circuit assembly including at least one circuit portion adapted to be switched by means external to the package; and substantially sealed, elastomeric, normally limp bladder means, at least a portion of said bladder means encasing said circuit assembly.
Claim 21
Dependent Claim
32 words
An electrical package as set forth in claim 16, wherein said bladder means includes: a bladder casing containing said circuit assembly; and a bladder bellows in fluid communication with said bladder casing.
Claim 22
Dependent Claim
48 words
An electrical package as set forth in claim 17, wherein said bladder casing comprises a pair of elastomeric sheets joined together along their peripheral edges; and said bladder bellows comprises at least one bladder section defined by a pair of elastomeric sheets joined together along their peripheral edges.
Claim 23
Dependent Claim
29 words
An electrical package as set forth in claim 18, wherein all of said elastomeric sheets are of silicone rubber sealed at their respective edges with a silicone rubber sealant.
Claim 24
Dependent Claim
55 words
An electrical package, comprising: electrical apparatus; and bladder means in fluid communication with said electrical apparatus for pressure compensating and substantially sealing said electrical apparatus against the fluid environment external to the package, said bladder means including a bladder casing containing said electrical apparatus and a bladder bellows in fluid communication with said bladder casing.
Claim 25
Dependent Claim
55 words
An electrical package, comprising: electrical apparatus; and bladder means in fluid communication with said electrical apparatus for pressure compensating and substantially sealing said electrical apparatus against the fluid environment external to the package, said bladder means including a bladder casing containing said electrical apparatus and a bladder bellows in fluid communication with said bladder casing.
Claim 26
Dependent Claim
47 words
An electrical package as set forth in claim 16, wherein said bladder means includes a bladder bellows in fluid communication with said circuit assembly and said bladder bellows comprises at least one bladder section defined by a pair of elastomeric sheets joined together along their peripheral edges.
Claim 27
Dependent Claim
17 words
An electrical package as set forth in claim 21, wherein said elastomeric sheets are of silicone rubber.
Claim 28
Dependent Claim
37 words
An electrical package as set forth in claim 16, wherein said bladder means includes a bladder casing containing said circuit assembly and said bladder casing comprises a pair of elastomeric sheets joined together along their peripheral edges.
Claim 29
Dependent Claim
17 words
An electrical package as set forth in claim 23, wherein said elastomeric sheets are of silicone rubber.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |