Patent US4318676A successfully refreshed from Google Patents.
US4318676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for spinning endless filaments
Assignee: Karl Fischer Industrieanlagen GmbH
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Filing: 1980-09-08
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Granted: 1982-03-09
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Expires: 2000-09-08
Abstract
Abstract A device for spinning endless filaments out of synthetic polymers is disclosed. The device comprises a plurality of spin positions with each spin position having a spin head with four spinneret holders each fed by a multiple spin pump of a blowing chamber, a spin finish device and a winding device with at least two winding axes. The device is characterized in that one spinneret is in each spinneret holder and the spinneret can be fed by a spin pump with at least dosed melt streams, the quantity of which is designed for spinning four, eight or twelve ends per spin position which are adapted to be wound up thereafter.
Inventors
- 👤 Luder Gerking
- 👤 Gunter Panke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:00
CPC Classifications
D; D01; D01D; D01D13/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
In a device for spinning endless filaments out of synthetic polymers, said device comprising a plurality of spin positions, each single spin position of it having a spin head with four spinneret holders; a multiple spin pump feeding said holders; a blowing chamber; a spin finish device and a winding device with at least two winding axes, the improvement characterized in that one spinneret at least is in each spinneret holder, and that said spinneret can be fed by one of said spin pumps with at least two dosed melt stream, the quantity of which is designed for spinning a different number of ends per spin position wherein the number of ends produced at each spin position varies by a ratio of 3:2:1.
Claim 2
Dependent Claim
123 words
In a device for spinning endless filaments out of synthetic polymers, said device comprising a plurality of spin positions, each single spin position of it having a spin head with four spinneret holders; a multiple spin pump feeding said holders; a blowing chamber; a spin finish device and a winding device with at least two winding axes, the improvement characterized in that one spinneret at least is in each spinneret holder, and that said spinneret can be fed by one of said spin pumps with at least two dosed melt stream, the quantity of which is designed for spinning a different number of ends per spin position wherein the number of ends produced at each spin position varies by a ratio of 3:2:1.
Claim 3
Dependent Claim
29 words
The improvement of claim 1 characterized in that the winder, belonging to the spin head consists of two winding axes, each one designed for taking up to six bobbins.
Claim 4
Dependent Claim
16 words
The improvement of claim 1 characterized in that two spinnerets are provided in each spinneret holder.
Claim 5
Dependent Claim
17 words
The improvement of claim 1 characterized in that three spinnerets are installed in one spinneret holder each.
Claim 6
Dependent Claim
25 words
The improvement of claim 1 or claim 4 characterized in that the spinnerets can be fed by a spin pump with three dosed melt streams.
References Cited (Backward Citations)
US3435108A
Cited
FR1551401A
Cited
US3902833A
Cited
US3881850A
Cited
US3936253A
Cited
US4077752A
Cited
US4247505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-08 | 1985-09-07 | 1986-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-08 | 1989-09-07 | 1990-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-08 | 1993-09-07 | 1994-03-09 | $7700.00 | Window Closed / Lapsed |