US4531262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for blending textile fibers
Assignee: Truetzschler GmbH and Co KG
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Filing: 1982-11-22
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Granted: 1985-07-30
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Expires: 2002-11-22
Abstract
Abstract Textile fibers are blended by introducing them in a pre-blender; performing an at least two-fold doubling of the textile fibers in the pre-blender; pneumatically introducing the textile fibers in a principal blender from the pre-blender; performing a multiple doubling of the textile fibers in the principal blender; and removing the textile fibers from said principal blender.
Inventors
- 👤 Werner Reiche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:44
CPC Classifications
D; D01; D01G; D01G13/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
In a system of a plurality of serially-connected fiber processing machines, including a blender having an inlet, a plurality of generally vertically oriented first hoppers, means for charging said first hoppers in succession from above, and discharge means for removing textile fibers mixed in said blender; the improvement wherein said system comprises (a) a pre-blender having (1) at least two generally vertically oriented second hoppers for pre-mixing textile fibers with an at least two-fold doubling and (2) an outlet for discharging textile fibers pre-mixed in the pre-blender; (b) a conveyor duct connecting the outlet of said pre-blender with the inlet of said blender; and (c) pneumatic means for conveying textile fiber by a gas stream in said conveyor duct from the outlet of said pre-blender in the inlet of said blender, whereby short-wave defects in fiber material batches are equalized.
Claim 2
Dependent Claim
140 words
In a system of a plurality of serially-connected fiber processing machines, including a blender having an inlet, a plurality of generally vertically oriented first hoppers, means for charging said first hoppers in succession from above, and discharge means for removing textile fibers mixed in said blender; the improvement wherein said system comprises (a) a pre-blender having (1) at least two generally vertically oriented second hoppers for pre-mixing textile fibers with an at least two-fold doubling and (2) an outlet for discharging textile fibers pre-mixed in the pre-blender; (b) a conveyor duct connecting the outlet of said pre-blender with the inlet of said blender; and (c) pneumatic means for conveying textile fiber by a gas stream in said conveyor duct from the outlet of said pre-blender in the inlet of said blender, whereby short-wave defects in fiber material batches are equalized.
Claim 3
Dependent Claim
14 words
A system as defined in claim 1, wherein said first hoppers are feed chutes.
Claim 4
Dependent Claim
25 words
A system as defined in claim 1, wherein each said first hopper has an outlet opening at the bottom thereof for discharging textile fibers therethrough.
Claim 5
Dependent Claim
46 words
A system as defined in claim 1, further comprising height control means for regulating the height level of the textile fibers in said first hoppers; said first hoppers having vertical side walls; said height control means comprising photocells arranged in the zone of said side walls.
Claim 6
Dependent Claim
29 words
A system as defined in claim 1, further comprising a textile fiber intermingler operatively connected between said pre-blender and said blender for intermixing textile fibers pre-mixed in said pre-blender.
Claim 7
Dependent Claim
16 words
A system as defined in claim 5, wherein said intermingler is arranged in said conveyor duct.
Claim 8
Dependent Claim
15 words
A system as defined in claim 5, wherein said intermingler includes a textile fiber cleaner.
Claim 9
Dependent Claim
21 words
A system as defined in claim 1, further comprising means for charging said second hoppers in an alternating sequence from above.
Claim 10
Dependent Claim
29 words
A system as defined in claim 1, wherein one of said textile fiber processing machines is a fiber bale opener connected to said pre-blender for delivering textile fiber thereto.
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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) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |