Patent US3925865A successfully refreshed from Google Patents.
US3925865A
Expired / Lapsed
US
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Fabric bulking unit
Assignee: Individual
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Filing: 1973-10-24
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Granted: 1975-12-16
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Expires: 1993-10-24
Abstract
Abstract A bulking unit including a vessel having a fabric path therethrough. Drive rolls are provided along a portion of the fabric path so as to direct fabric into and out of a fabric loop within the vessel. A gaseous treating unit is provided within the fabric loop and extends along the length thereof. The gaseous treating unit has a plurality of high velocity gas jets directed against the fabric with the angle of impingement of gas onto the fabric being substantially perpendicular thereto. Subsequent to the bulking unit, a cooling air chamber may be provided to cool the bulked fabric. A loop control means is provided within the vessel to maintain an appropriate sized loop.
Inventors
- 👤 Donald K Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:13
CPC Classifications
D; D06; D06C; D06C29/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
Bulking apparatus for textile fabric comprising: a. a treating vessel; b. a pressure manifold received in said vessel and extending at least along the effective treating width thereof, said manifold having at least one upwardly oriented nozzle therein at a predetermined angle; c. means to feed a textile fabric to the treating vessel; d. means to withdraw the textile fabric from the treating vessel, the fabric passing in transit through the vessel between said feeding and withdrawing means over the upwardly oriented nozzle and forming a downwardly extending loop therebetween; and e. means adjacent the loop for sensing the extent thereof for controlling the rate of travel of the fabric through the vessel, the fabric being solely and freely supported on an upwardly directed air stream generated by the nozzle of the pressure manifold and bulked by actions induced therein by said air stream between the feeding and withdrawing means.
Claim 2
Dependent Claim
150 words
Bulking apparatus for textile fabric comprising: a. a treating vessel; b. a pressure manifold received in said vessel and extending at least along the effective treating width thereof, said manifold having at least one upwardly oriented nozzle therein at a predetermined angle; c. means to feed a textile fabric to the treating vessel; d. means to withdraw the textile fabric from the treating vessel, the fabric passing in transit through the vessel between said feeding and withdrawing means over the upwardly oriented nozzle and forming a downwardly extending loop therebetween; and e. means adjacent the loop for sensing the extent thereof for controlling the rate of travel of the fabric through the vessel, the fabric being solely and freely supported on an upwardly directed air stream generated by the nozzle of the pressure manifold and bulked by actions induced therein by said air stream between the feeding and withdrawing means.
Claim 3
Dependent Claim
21 words
Bulking apparatus as defined in claim 1 wherein said treating vessel includes means to thermally insulate same to conserve heat therein.
Claim 4
Dependent Claim
52 words
Bulking apparatus as defined in claim 1 wherein said manifold is provided with a plurality of longitUdinally extending and upwardly oriented nozzles therein, one nozzle being provided adjacent to the feeding means and another nozzle adjacent to the withdrawing means, the fabric being freely upwardly supported by the air streams generated thereby.
Claim 5
Dependent Claim
25 words
Bulking apparatus as defined in claim 3 wherein means are provided to adjust the nozzles to vary the geometric pattern of a gas exiting therefrom.
References Cited (Backward Citations)
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |