Patent US3765852A successfully refreshed from Google Patents.
US3765852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing fibres from melts
Assignee: Individual
•
Filing: 1971-07-19
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Granted: 1973-10-16
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Expires: 1991-07-19
Abstract
Abstract In the apparatus a cross partition serving as a heater and dividing the working chamber into a melting and a feeding zone has an upwardly convex shape, which together with an additional heater ensures intensification of the material melting process and the process of melt homogenization. This in turn permits a sharp increase in process efficiency and a reduction in the size of the structure.
Inventors
- 👤 E Shule
- 👤 O Shiman
- 👤 N Bakanov
- 👤 N Shevchenko
- 👤 A Myagchenkov
- 👤 M Hodakovsky
- 👤 S Kutukov
- 👤 E Rytvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:55
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/09; C03B37/091; C03B37/081; C03B37/092
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
An apparatus for producing fibres from molten thermoplastic materials, comprising: a housing; a heater in said housing disposed so as to form an upwardly convex cross partition; perforations in said cross partition serving to let through the melt; at least one additional heater located below said partition; and orifices arranged in the lower part of the houSing and serving to form the fibres.
Claim 2
Independent Claim
63 words
An apparatus for producing fibres from molten thermoplastic materials, comprising: a housing; a heater in said housing disposed so as to form an upwardly convex cross partition; perforations in said cross partition serving to let through the melt; at least one additional heater located below said partition; and orifices arranged in the lower part of the houSing and serving to form the fibres.
Claim 3
Dependent Claim
18 words
An apparatus as in claim 1, wherein said perforations in said partition are located in its lower portions.
Claim 4
Dependent Claim
17 words
An apparatus as in claim 2, wherein located below said partition opposite said perforations are netted elements.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |