US3824052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus to produce nonwoven fabric
Assignee: Milliken Research Corp
•
Filing: 1973-12-10
•
Granted: 1974-07-16
•
Expires: 1993-12-10
Abstract
Abstract Process and apparatus to produce nonwoven fabric from a stream of liquid material having a high di-electric constant. The stream of liquid material is delivered past an air nozzle having a high electrical potential which attracts the liquid stream and shatters it into fine fibrous particles.
Inventors
- 👤 J Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:59
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; D01; D01D; D01D4/00; D01D4/02; D01D4/025
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
30 words
The structure of claim 1 wherein said means supporting said air nozzle includes a means to rotate said air nozzle partially around the path of flow of said air nozzle.
Claim 2
Dependent Claim
17 words
The structure of claim 2 wherein said means to rotate said air nozzle includes a parallelogram linkage.
Claim 3
Dependent Claim
14 words
The structure of claim 3 wherein said fiber collection means is an endless belt.
References Cited (Backward Citations)
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Cited
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Cited
US3461943A
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |