US3895671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a thin sheet of beryllium or an alloy thereof
Assignee: Nippon Gakki Co Ltd
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Filing: 1973-11-13
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Granted: 1975-07-22
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Expires: 1993-11-13
Abstract
Abstract A method of manufacturing a thin sheet of beryllium or an alloy thereof which comprises depositing beryllium or an alloy thereof on a substrate bearing a prescribed shape, in vacuum and separating the deposited thin sheet of beryllium from the substrate.
Inventors
- 👤 Kunio Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:50
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/02; C; C23; C23C; C23C14/00; C23C14/0005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
68 words
A METHOD FOR MANUFACTUARING A THIN SHEET OF METAL SELECTED FROM A GROUP CONSISTING OF BERYLLIUM AND BERYLLIUM ALLOY WHICH COMPRISES THE STEPS OF FABRICATING A SUBSTRATE OF A PREDETERMINED SHAPE MADE OF MATERIAL SELECTED FROM A GROUP CONSISTING OF COPPER AND MAGNESIUM DEPOSITING THE THIN SHEET OF SAID METAL OF SAID SUBSTRATE AND REMOVING THE THIN SHEET FROM THE SUBSTRAATE BY DISSOLVING THE LATTER IN NITRIC ACID.
Claim 2
Independent Claim
68 words
A METHOD FOR MANUFACTUARING A THIN SHEET OF METAL SELECTED FROM A GROUP CONSISTING OF BERYLLIUM AND BERYLLIUM ALLOY WHICH COMPRISES THE STEPS OF FABRICATING A SUBSTRATE OF A PREDETERMINED SHAPE MADE OF MATERIAL SELECTED FROM A GROUP CONSISTING OF COPPER AND MAGNESIUM DEPOSITING THE THIN SHEET OF SAID METAL OF SAID SUBSTRATE AND REMOVING THE THIN SHEET FROM THE SUBSTRAATE BY DISSOLVING THE LATTER IN NITRIC ACID.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein said metal is deposited on said substrate by vacuum evaporation.
Claim 4
Dependent Claim
16 words
The method of claim 1 wherein said metal is deposited on said substrate by ion plating.
Claim 5
Dependent Claim
36 words
A method according to claim 1 wherein said beryllium alloy is selected from a group consisting of Be-Cu alloy (Cu 0.5 to 5%), Be-Al alloy (Al 20 to 40%) and Be-Ti alloy (Ti 0.5 to 5%).
Claim 6
Dependent Claim
32 words
A method according to claim 4 wherein said nitric acid is employed in the form of an aqueous solution consisting of one part of water and three parts of 60% nitric acid.
Claim 7
Dependent Claim
30 words
A method according to claim 4 wherein said thin sheet of the deposited metal, after removal from the substrate, is subjected to heat-treatment at a temperature of 200* to 1200*C.
Claim 8
Dependent Claim
32 words
A method according to claim 1 wherein said nitric acid is employed in the form of an aqueous solution consisting of one part of water and three parts of 60% nitric acid.
Claim 9
Dependent Claim
30 words
A method according to claim 1 wherein said thin sheet of the deposited metal, after removal from the substrate, is subjected to heat-treatment at a temperature of 200* to 1200*C.
Claim 10
Independent Claim
68 words
A METHOD FOR MANUFACTURING A THIN SHEET OF METAL SELECTED FROM THE GROUP CONSISTING OF BERYLLIUM AND BERYLLIUM ALLOY WHICH COMPRISES THE STEPS OF FABRICATING A SUBSTRATE OF QUARTZ GLASS INTO A PRESCRIBED FORM DEPOSITING A THIN SHEET OF THE METAL ON THE SUBSTRATE AND HEATING THE COMBINATION TO SEPARATE THE THIN SHEET FTHE SUBSTRATE DUE TO DIFFERENT THERMAL EXPANSION COEFFICIENTS BETWEEN THE METAL AND THE QUARTZ GLASS.
Claim 11
Independent Claim
68 words
A METHOD FOR MANUFACTURING A THIN SHEET OF METAL SELECTED FROM THE GROUP CONSISTING OF BERYLLIUM AND BERYLLIUM ALLOY WHICH COMPRISES THE STEPS OF FABRICATING A SUBSTRATE OF QUARTZ GLASS INTO A PRESCRIBED FORM DEPOSITING A THIN SHEET OF THE METAL ON THE SUBSTRATE AND HEATING THE COMBINATION TO SEPARATE THE THIN SHEET FTHE SUBSTRATE DUE TO DIFFERENT THERMAL EXPANSION COEFFICIENTS BETWEEN THE METAL AND THE QUARTZ GLASS.
Claim 12
Dependent Claim
28 words
A method according to claim 9 wherein said combination is heated at a temperature ranging from 500* to 1200*C when the thin sheet is separated from the substrate.
Claim 13
Dependent Claim
17 words
A method according to claim 9 wherein said metal is deposited on the substrate by vacuum evaporation.
Claim 14
Dependent Claim
17 words
A method according to claim 9 wherein said metal is deposited on the substrate by ion plating.
Claim 15
Dependent Claim
36 words
A method according to claim 9 wherein said beryllium alloy is selected from the group consisting of Be-Cu alloy (Cu 0.5 to 5%), Be-Al alloy (Al 20 to 40%) and Be-Ti alloy (Ti 0.5 to 5%).
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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |