Patent US3633256A successfully refreshed from Google Patents.
US3633256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orientation drawing chamber for fibers
Assignee: Monsanto Co
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Filing: 1969-08-15
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Granted: 1972-01-11
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Expires: 1989-08-15
Abstract
Abstract A recirculating gas chamber for drawing fiber is comprised of a longitudinally disposed inner chamber defined by an inner tubular jacket having flared throats forming a venturi at each end with heating means for the chamber, a generally cylindrical outer jacket surrounding the inner jacket extending to within the flared throats of the inner jacket and spaced apart therefrom, and fiber entry and exit channels extending to within the flared throats, whereby the outermost of the inner jacket and the inner lining of the outer jacket are cooperatively shaped to provide a recirculating passage for a gaseous medium cocurrent with fiber movement through the inner chamber and countercurrent of fiber movement between the inner jacket and the outer jacket.
Inventors
- 👤 William C Mallonee
- 👤 Samuel R Averette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:11
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/224
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
176 words
A recirculating gas chamber for orientation drawing of fibers comprised of: 1. supply means for the fiber, 2. a longitudinally disposed inner chamber defined by an inner jacket having flared throats forming a venturi at each end, 3. heating means for said chamber, 4. a generally cylindrical outer jacket surrounding said inner jacket extending to within said flared throats of said inner tube and spaced apart therefrom, 5. fiber entry channel at one end of said outer jacket extending to within one flared throat of said inner chamber, 6. a fiber exit channel at the opposite end of said outer jacket from said fiber entry channel, extending to within the other flared throat of said inner chamber, 7. supply means for said gas, 8. takeup means for said fiber, whereby the outermost of said inner jacket and the inner lining of said outer jacket are cooperatively shaped to provide a recirculating passage for a gaseous medium cocurrent with fiber movement through said inner chamber and countercurrent of fiber movement between said inner chamber and outer jacket.
Claim 2
Dependent Claim
176 words
A recirculating gas chamber for orientation drawing of fibers comprised of: 1. supply means for the fiber, 2. a longitudinally disposed inner chamber defined by an inner jacket having flared throats forming a venturi at each end, 3. heating means for said chamber, 4. a generally cylindrical outer jacket surrounding said inner jacket extending to within said flared throats of said inner tube and spaced apart therefrom, 5. fiber entry channel at one end of said outer jacket extending to within one flared throat of said inner chamber, 6. a fiber exit channel at the opposite end of said outer jacket from said fiber entry channel, extending to within the other flared throat of said inner chamber, 7. supply means for said gas, 8. takeup means for said fiber, whereby the outermost of said inner jacket and the inner lining of said outer jacket are cooperatively shaped to provide a recirculating passage for a gaseous medium cocurrent with fiber movement through said inner chamber and countercurrent of fiber movement between said inner chamber and outer jacket.
Claim 3
Dependent Claim
19 words
a longitudinally disposed inner chamber defined by an inner jacket having flared throats forming a venturi at each end,
Claim 4
Dependent Claim
19 words
a longitudinally disposed inner chamber defined by an inner jacket having flared throats forming a venturi at each end,
Claim 5
Dependent Claim
13 words
The apparatus of claim 1 wherein said inner jacket is lined with insulation.
Claim 6
Dependent Claim
13 words
The apparatus of claim 1 wherein said heating means comprises electrical heating filaments.
Claim 7
Dependent Claim
5 words
heating means for said chamber,
Claim 8
Dependent Claim
5 words
heating means for said chamber,
Claim 9
Dependent Claim
23 words
a generally cylindrical outer jacket surrounding said inner jacket extending to within said flared throats of said inner tube and spaced apart therefrom,
Claim 10
Dependent Claim
23 words
a generally cylindrical outer jacket surrounding said inner jacket extending to within said flared throats of said inner tube and spaced apart therefrom,
Claim 11
Dependent Claim
20 words
fiber entry channel at one end of said outer jacket extending to within one flared throat of said inner chamber,
Claim 12
Dependent Claim
20 words
fiber entry channel at one end of said outer jacket extending to within one flared throat of said inner chamber,
Claim 13
Dependent Claim
28 words
a fiber exit channel at the opposite end of said outer jacket from said fiber entry channel, extending to within the other flared throat of said inner chamber,
Claim 14
Dependent Claim
28 words
a fiber exit channel at the opposite end of said outer jacket from said fiber entry channel, extending to within the other flared throat of said inner chamber,
Claim 15
Dependent Claim
5 words
supply means for said gas,
Claim 16
Dependent Claim
5 words
supply means for said gas,
Claim 17
Dependent Claim
52 words
takeup means for said fiber, whereby the outermost of said inner jacket and the inner lining of said outer jacket are cooperatively shaped to provide a recirculating passage for a gaseous medium cocurrent with fiber movement through said inner chamber and countercurrent of fiber movement between said inner chamber and outer jacket.
Claim 18
Dependent Claim
52 words
takeup means for said fiber, whereby the outermost of said inner jacket and the inner lining of said outer jacket are cooperatively shaped to provide a recirculating passage for a gaseous medium cocurrent with fiber movement through said inner chamber and countercurrent of fiber movement between said inner chamber and outer jacket.
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |