Patent US2306812A successfully refreshed from Google Patents.
Patent US3903568A successfully refreshed from Google Patents.
US3903568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of batting
Assignee: Celanese Corp
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Filing: 1973-07-03
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Granted: 1975-09-09
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Expires: 1993-07-03
Abstract
Abstract Apparatus for the manufacture of cross-lapped structures is provided comprising means for continuously supplying a web, a support, means for traversing the web, the traversing means including an oscillating chute for receiving and discharging the web onto the support, the chute comprising opposed wide panels converging toward an exit, means for oscillating the chute, the chute exit being spaced from the support sufficiently for the web to billow outward, the chute having attached thereto baffle means to regulate and direct the currents of air generated by the oscillation of the chute.
Inventors
- 👤 George A Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:40
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
Apparatus for the manufacture of cross-lapped structures comprising means for continuously supplying a longitudinally moving wide fine web of substantially parallel filaments at a predetermined linear speed, a support, means for traversing said web by alternately moving the web in opposite direction across said support to deposit the web in folded condition on said support, said traversing means including an oscillating chute for receiving the moving web and discharging said web onto said support, said chute comprising opposed wide panels with inner walls having smooth surfaces separated by a distance substantially greater than the thickness of said web, said panels converging toward an exit, means for oscillating said chute at a predetermined rate to provide a predetermined linear speed of traverse of said exit substantially lower than the linear speed of said web, said exit being spaced from said support sufficiently for said web, in travelling from said exit to said support, to billow outward substantially beyond the limits of the traverse of said exit, and Baffle means associated with said chute to regulate and direct the currents of air generated by the oscillation of said chute to control the billowing effect.
Claim 2
Dependent Claim
192 words
Apparatus for the manufacture of cross-lapped structures comprising means for continuously supplying a longitudinally moving wide fine web of substantially parallel filaments at a predetermined linear speed, a support, means for traversing said web by alternately moving the web in opposite direction across said support to deposit the web in folded condition on said support, said traversing means including an oscillating chute for receiving the moving web and discharging said web onto said support, said chute comprising opposed wide panels with inner walls having smooth surfaces separated by a distance substantially greater than the thickness of said web, said panels converging toward an exit, means for oscillating said chute at a predetermined rate to provide a predetermined linear speed of traverse of said exit substantially lower than the linear speed of said web, said exit being spaced from said support sufficiently for said web, in travelling from said exit to said support, to billow outward substantially beyond the limits of the traverse of said exit, and Baffle means associated with said chute to regulate and direct the currents of air generated by the oscillation of said chute to control the billowing effect.
References Cited (Backward Citations)
US2736362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |