Patent US518168A successfully refreshed from Google Patents.
US4529458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compacted amorphous ribbon
Assignee: Honeywell International Inc
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Filing: 1982-07-19
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Granted: 1985-07-16
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Expires: 2002-07-19
Abstract
Abstract This invention relates to the production of large shapes of metallic glass fabricated from ribbon. The inventive method contemplates placing the ribbon and consolidating the alloy under a pressure or at least 1000 psi at a temperature of between 70% and 90% of the crystallization temperature for a time sufficient to facilitate bonding of the ribbons.
Inventors
- 👤 Julian H. Kushnick
- 👤 Dulari L. Sawhney
- 👤 Robert E. Hathaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/006; B22F3/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
60 words
A method for making bulk objects from metallic glass ribbons while maintaining the physical identity of the individual ribbons comprising: stacking the ribbons in an overlapping aligned relationship; and compacting at a pressure of at least 1000 psi (6895 kPa) at a temperature between about 70 and 90% of the crystallization temperature for a time sufficient to bond the ribbons.
Claim 2
Independent Claim
60 words
A method for making bulk objects from metallic glass ribbons while maintaining the physical identity of the individual ribbons comprising: stacking the ribbons in an overlapping aligned relationship; and compacting at a pressure of at least 1000 psi (6895 kPa) at a temperature between about 70 and 90% of the crystallization temperature for a time sufficient to bond the ribbons.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein the temperature is further restricted to 85 to 90% of the crystallization temperature and said compacting is done in an oxidizing atmosphere.
Claim 4
Dependent Claim
28 words
The method of claim 2 wherein said compaction pressure is applied by a roll stand with the ribbons raised to said temperature before entry into said roll stand.
Claim 5
Dependent Claim
24 words
The method of claim 2 wherein said compaction is accomplished by hot pressing and the ribbons segmented with said segments placed in overlapping relationship.
Claim 6
Dependent Claim
14 words
The method of claim 4 wherein said segments placed in overlapping relationship are bundled.
Claim 7
Dependent Claim
15 words
The method of claim 4 wherein said stacked strips are wrapped in foil before consolidation.
Claim 8
Dependent Claim
26 words
The method of claim 3 or 5 wherein the consolidated ribbon is given an anneal at a temperature up to 100° C. above the pressing temperature.
Claim 9
Dependent Claim
12 words
The consolidated product made by the process of claim 3 or 5.
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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) | 1988-07-15 | 1989-01-14 | 1989-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-15 | 1993-01-14 | 1993-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-15 | 1997-01-14 | 1997-07-16 | $7700.00 | Window Closed / Lapsed |