US4077752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for take-up and storage of thread bundles
Assignee: LL Plant Engineering AG
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Filing: 1976-02-09
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Granted: 1978-03-07
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Expires: 1996-02-09
Abstract
Abstract A flexible apparatus and method for producing synthetic fibers in either the form of a single thread bundle on a bobbin, or as a combined thread strand in a storage can, without rearranging the spinning plant. This is accomplished by extruding the threads, one bundle from each of a series of aligned spinnerets, downwardly through ducts carrying a stream of air, and mounting directly beneath the ducts, in alignment therewith, an elongated take-up machine. The take-up machine has a row of winding devices on one side and a row of combining rollers on the other. The thread bundle from each spinneret is directed through a duct arrangement either to one side or the other of the take-up machine. All spinnerets may feed one side, or the other, or the production can be mixed with some spinnerets feeding one side and some the other, depending upon whether the market demand is for filament yarns or staple fibers.
Inventors
- 👤 Willy Zahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:48
CPC Classifications
D; D01; D01D; D01D13/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
138 words
Apparatus for taking up and storing thread bundles produced from high polymer spinning materials comprising a series of spinnerets aligned in a row with each spinneret adapted to extrude a bundle of threads in a downward direction, a blow duct connected to the discharge end of each spinneret, a spinning duct connected to the lower end of each blow duct, and an elongated take up machine disposed beneath the lower ends of said spinning ducts, said machine being aligned with and centered with respect to said row of spinnerets, wherein said take-up machine includes along its length on one side a row of winding devices and along its length on the other side a row of thread-combining rollers, each of said spinning ducts including means arranged to direct the thread path to either side of said take-up machine.
Claim 2
Dependent Claim
138 words
Apparatus for taking up and storing thread bundles produced from high polymer spinning materials comprising a series of spinnerets aligned in a row with each spinneret adapted to extrude a bundle of threads in a downward direction, a blow duct connected to the discharge end of each spinneret, a spinning duct connected to the lower end of each blow duct, and an elongated take up machine disposed beneath the lower ends of said spinning ducts, said machine being aligned with and centered with respect to said row of spinnerets, wherein said take-up machine includes along its length on one side a row of winding devices and along its length on the other side a row of thread-combining rollers, each of said spinning ducts including means arranged to direct the thread path to either side of said take-up machine.
Claim 3
Dependent Claim
58 words
Apparatus of claim 1 wherein at least one of said spinning ducts has side walls that diverge toward the take-up machine to accommodate thread bundles directed to one or the other sides of said take-up machine, and an end plate closing the end of the spinning duct except for two lateral openings for passage of the thread bundles.
Claim 4
Dependent Claim
25 words
Apparatus of claim 2 in which a hinged flap is disposed within said duct movable to block one or the other of said lateral openings.
Claim 5
Dependent Claim
46 words
Apparatus of claim 1 in which at least one of said spinning ducts branches at its lower end into separate pipes to form an inverted Y configuration, one pipe leading to said one side and the other pipe to said other side of said take-up machine.
Claim 6
Dependent Claim
28 words
Apparatus of claim 4 in which a hinged flap is disposed in said duct at the inverted Y, movable to block one or the other of said pipes.
Claim 7
Dependent Claim
44 words
Apparatus of claim 1 in which at least one of said spinning ducts is hinged where it is connected to said blow duct, thereby permitting the discharge end thereof to be moved to said one side or said other side of the take-up machine.
Claim 8
Dependent Claim
20 words
Apparatus of claim 1 which includes thread guides within said ducts to control the direction of the thread bundles therethrough.
Claim 9
Dependent Claim
19 words
Apparatus of claim 7 in which said thread guide is mounted at the lower end of said blow duct.
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) | 1981-03-06 | 1981-09-05 | 1982-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-06 | 1985-09-05 | 1986-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-06 | 1989-09-05 | 1990-03-07 | $7700.00 | Window Closed / Lapsed |