US3328946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making corkscrew-type yarns
Assignee: VEB ALWO ALTENBURGER WOLLSPINNEREI
•
Filing: 1966-01-03
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Granted: 1967-07-04
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Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Schumann Herbert
- 👤 Schumann Max
- 👤 Dehmel Kurt
- 👤 Menzl Eberhard
- 👤 Wappler Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:04
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/36; D02G3/362; D02G3/365
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN APPARATUS FOR MAKING CORKSCREW-TYPE YARNS WHEREIN AN OUTER FILAMENT IS HELICALLY WOUND AROUND A SUBSTANTIALLY UNTWISTED CORE THREAD, COMPRISING A STATIONARY TUBE; SUPPLY MEANS FOR CONTINUOUSLY DELIVERING CORE THREAD TO SAID TUBE; A SOURCE OF SUPPLY FOR THE FILAMENT TO BE WOUND AROUND SAID CORE THREAD UPON PASSING JOINTLY WITH THE LATTER THROUGH SAID TUBE; FEED MEANS BEYOND SAID TUBE FOR IMPARTING TRACTION TO SAID CORE THREAD AND FILAMENT; WINDING MEANS AT THE ENTRANCE OF SAID TUBE FOR CONTINUOUSLY ROTATING SAID FILAMENT AROUND THE ADVANCING CORE THREAD; AND SUCTION MEANS CONNECTED WITH SAID TUBE FOR CREATING A PARTIAL VACUUM THROUGHOUT A SUBSTANTIAL PART OF THE TUBE LENGTH.
Claim 2
Independent Claim
108 words
AN APPARATUS FOR MAKING CORKSCREW-TYPE YARNS WHEREIN AN OUTER FILAMENT IS HELICALLY WOUND AROUND A SUBSTANTIALLY UNTWISTED CORE THREAD, COMPRISING A STATIONARY TUBE; SUPPLY MEANS FOR CONTINUOUSLY DELIVERING CORE THREAD TO SAID TUBE; A SOURCE OF SUPPLY FOR THE FILAMENT TO BE WOUND AROUND SAID CORE THREAD UPON PASSING JOINTLY WITH THE LATTER THROUGH SAID TUBE; FEED MEANS BEYOND SAID TUBE FOR IMPARTING TRACTION TO SAID CORE THREAD AND FILAMENT; WINDING MEANS AT THE ENTRANCE OF SAID TUBE FOR CONTINUOUSLY ROTATING SAID FILAMENT AROUND THE ADVANCING CORE THREAD; AND SUCTION MEANS CONNECTED WITH SAID TUBE FOR CREATING A PARTIAL VACUUM THROUGHOUT A SUBSTANTIAL PART OF THE TUBE LENGTH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |