US3843762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making filament
Assignee: Individual
•
Filing: 1973-05-30
•
Granted: 1974-10-22
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Expires: 1993-05-30
Abstract
Abstract A method of insuring the spontaneous release of a filament formed by contacting the surface of a molten material with the circumferential edge of a rotating heat-extracting member by applying a film of cooling liquid to the external surface of the circumferential edge.
Inventors
- 👤 G Sleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:54
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
In a method of forming filamentary material from a source of molten material having properties in the molten state substantially similar to molten metals by rotating the circumferential edge of a disk-like heat-extracting member in contact with the surface of said molten material while limiting the area of contact of said edge with said surface, solidifying said material in solid filamentary form on said edge and spontaneously releasing the filament from said edge the improvement comprising: applying a film of cooling liquid externally to said edge at a point between the location of spontaneous filament release and the point where said edge enters the surface of said molten material.
Claim 2
Dependent Claim
109 words
In a method of forming filamentary material from a source of molten material having properties in the molten state substantially similar to molten metals by rotating the circumferential edge of a disk-like heat-extracting member in contact with the surface of said molten material while limiting the area of contact of said edge with said surface, solidifying said material in solid filamentary form on said edge and spontaneously releasing the filament from said edge the improvement comprising: applying a film of cooling liquid externally to said edge at a point between the location of spontaneous filament release and the point where said edge enters the surface of said molten material.
Claim 3
Dependent Claim
40 words
The method of claim 1 where said disk-like heat-extracting member is internally cooled by circulation of liquid therethrough with a portion of the internal cooling liquid passing through said member so as to form an external film of cooling liquid.
Claim 4
Dependent Claim
20 words
The method of claim 1 where said film is produced by directly applying said cooling liquid to said circumferential edge.
Claim 5
Dependent Claim
21 words
The method of claim 3 where said cooling liquid is applied to a porous medium in contact with said circumferential edge.
Claim 6
Dependent Claim
22 words
The method of claim 3 where said cooling liquid is applied to said circumferential edge in the form of a liquid spray.
Claim 7
Dependent Claim
23 words
The method of claim 1 including the step of providing notches on said circumferential edge disposed to attenuate the filament into discontinuous lengths.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |