US4331739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amorphous metallic strips
Assignee: Honeywell International Inc
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Filing: 1980-03-07
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Granted: 1982-05-25
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Expires: 2000-03-07
Abstract
Abstract Continuous metal strips are formed by forcing molten metal onto the surface of a moving chill body under pressure through a slotted nozzle located in close proximity to the surface of the chill body. Critical selection of nozzle dimensions, velocity of movement of the chill body surface, and gap between nozzle and chill body surface permits production of continuous polycrystalline metal strip at high speeds, and of amorphous metal strips having high isotropic strengths, heretofore unobtainable dimensions, and other isotropic physical properties such as magnetizability.
Inventors
- 👤 Mandayam C. Narasimhan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:14
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0637; B22D11/0697; B22D11/005; B22D11/0611; B22D11/0631; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
18 words
A strip of amorphous metal having a width of at least 7 millimeters, and having isotropic tensile properties.
Claim 2
Dependent Claim
18 words
A strip of amorphous metal having a width of at least 7 millimeters, and having isotropic tensile properties.
Claim 3
Dependent Claim
14 words
A strip according to claim 1 having thickness of at least about 0.02 millimeters.
Claim 4
Dependent Claim
14 words
A strip according to claim 2 having width of at least about 1 centimeter.
Claim 5
Dependent Claim
14 words
A strip according to claim 2 having width of at least about 3 centimeters.
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) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |