US4529457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amorphous press formed sections
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 non-planar shapes of metallic glass fabricated from ribbon. The inventive method contemplates stacking the ribbon. The stacked ribbon is formed and held at temperatures of between 70 and 90% of the crystallization temperature for a time sufficient to facilitate permanent deformation of the stacked ribbons and to bond the ribbons.
Inventors
- 👤 Julian H. Kushnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:21
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/12; C21D8/1244; B; B22; B22F; B22F3/00; B22F3/006; C22; C22C; C22C45/00; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/153; H01F1/15358; C21D8/1205; C21D8/1211
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
74 words
A method for making bulk samples from metallic glass ribbons comprising: stacking aligned ribbons in an overlapping parallel relationship; forming said stacked ribbons to a non-planar configuration; and holding said formed stacked ribbons 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 provide permanent deformation of said stacked deformed ribbons and to bond the ribbons together.
Claim 2
Independent Claim
74 words
A method for making bulk samples from metallic glass ribbons comprising: stacking aligned ribbons in an overlapping parallel relationship; forming said stacked ribbons to a non-planar configuration; and holding said formed stacked ribbons 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 provide permanent deformation of said stacked deformed ribbons and to bond the ribbons together.
Claim 3
Dependent Claim
34 words
The method of claim 1 wherein the temperature is further restricted to 80 to 90% of the crystallization temperature and said formed stacked ribbons are held at temperature and pressure in an oxidizing atmosphere.
Claim 4
Dependent Claim
13 words
The method of claim 1 or 2 where said stacked strips are bundled.
Claim 5
Dependent Claim
15 words
The method of claim 3 wherein said stacked strips are wrapped in foil before forming.
Claim 6
Dependent Claim
26 words
The method of claim 4 wherein the consolidated ribbon is given an anneal at between about the pressing temperature and 100° C. above the pressing temperature.
Claim 7
Dependent Claim
10 words
The consolidated product made by the process of claim 1.
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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 |