Patent US4408653A successfully refreshed from Google Patents.
US4408653A
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Method for making serrated metal ribbon
Assignee: Honeywell International Inc
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Filing: 1981-11-09
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Granted: 1983-10-11
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Expires: 2001-11-09
Abstract
Abstract A method for producing serrated ribbon or shard is described. Metal is cast onto a grooved chill surface where the grooves are at an inclination of between about 25 DEG to 70 DEG with respect to the direction of motion of the chill surface.
Inventors
- 👤 Louis F. Nienart
- 👤 Richard G. Fehrman
- 👤 Chung-Chu Wan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:04
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0611
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
In a method of melt spinning or casting metal ribbon wherein a stream of molten metal is impinged on a chill surface and is ejected from the surface by centrifugal force in the form of a metal filament, the improvement comprising providing at least one groove in the chill surface, the longitudinal axis of said groove run transverse to and is orientated at an angle between about 25° and 70° with respect to the direction of travel of the chill surface.
Claim 2
Dependent Claim
81 words
In a method of melt spinning or casting metal ribbon wherein a stream of molten metal is impinged on a chill surface and is ejected from the surface by centrifugal force in the form of a metal filament, the improvement comprising providing at least one groove in the chill surface, the longitudinal axis of said groove run transverse to and is orientated at an angle between about 25° and 70° with respect to the direction of travel of the chill surface.
Claim 3
Dependent Claim
35 words
The method of claim 1 wherein the surface speed of the chill surface with respect to the stream is between about 2500 fpm (12.8 mps) and 3500 fpm (17.8 mps) thereby producing a serrated ribbon.
Claim 4
Dependent Claim
36 words
The method of claim 1 wherein the surface speed of the chill surface with respect to the stream is between about 3500 fpm (17.8 mps) and 6000 fpm (30.6 mps) thereby producing individual shards of ribbon.
Claim 5
Dependent Claim
27 words
The method of claim 2 or 3 wherein said groove has depth greater than the ribbon thickness and less than 3 times the thickness of the ribbon.
Claim 6
Dependent Claim
27 words
The method of claim 1 wherein said groove is oriented at an angle of about 45° with respect to the direction of travel of the chill surface.
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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |