US5234650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for spinning multiple colored yarn
Assignee: Honeywell International Inc
•
Filing: 1992-03-30
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Granted: 1993-08-10
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Expires: 2012-03-30
Abstract
Abstract A spin pack for spinning multiple components includes a distribution device which distributes mutually separated molten polymer streams to a spinneret so that each mutually separated molten polymer stream is accessible at each active spinneret backhole. Intermediate the spinneret and the distribution device, a selection assembly selects which, if any, mutually separated molten polymer stream flows into which backhole.
Inventors
- 👤 Gerry A. Hagen
- 👤 Dominick A. Burlone
- 👤 Phillip E. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:24
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/06; D01D5/00; D01D5/08; D01D5/082; Y; Y10; Y10S; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
A process for spinning mixed filament yarn comprising: (a) feeding three or more differentially colored mutually separated molten polymer components to spin pack having a spinneret with extrusion orifices for issuing filaments, each extrusion orifice having a backhole for receiving molten polymer; (b) distributing each mutually separated component so that every component is accessible as a distinct component at every active spinneret backhole; (c) selectively preventing, via a plate having through holes, all but one component from entering a backhole; and (d) extruding multiple component yarn.
Claim 2
Dependent Claim
86 words
A process for spinning mixed filament yarn comprising: (a) feeding three or more differentially colored mutually separated molten polymer components to spin pack having a spinneret with extrusion orifices for issuing filaments, each extrusion orifice having a backhole for receiving molten polymer; (b) distributing each mutually separated component so that every component is accessible as a distinct component at every active spinneret backhole; (c) selectively preventing, via a plate having through holes, all but one component from entering a backhole; and (d) extruding multiple component yarn.
Claim 3
Dependent Claim
38 words
The process of claim 1 wherein said distributing comprises b.1) pooling each component; b.2) after said pooling, splitting the pool into multiple distinct streams; and b.3) routing the multiple distinct streams to the vicinity of each spinneret backhole.
Claim 4
Dependent Claim
47 words
The process of claim 1 wherein said distributing comprises: b.1) routing each mutually separated component to a series of distribution plates having grooves with through holes therein; b.2) splitting the streams in each groove; and b.3) passing the split streams to the vicinity of each spinneret backhole.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-09 | 2005-02-08 | 2005-08-10 | $7700.00 | Window Closed / Lapsed |