Patent US2997771A successfully refreshed from Google Patents.
US2997771A
Expired / Lapsed
US
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Apparatus for the production of bulky yarns
Assignee: Akzo Nobel UK PLC
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Filing: 1958-08-07
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Granted: 1961-08-29
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Expires: 1978-08-07
Abstract
No abstract record available.
Inventors
- 👤 Martyn Harold Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:30
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/161; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A JET SUITABLE FOR THE PRODUCTION OF A BULKY YARN FROM A CONTINUOUS FILAMENT YARN, SAID JET COMPRISING A HOLLOW BODY PORTION HAVING AN INLET FOR AIR UNDER PRESSURE, A YARN EXIT TUBE LEADING OUT OF SAID BODY PORTION, A YARN ENTRANCE TUBE COAXIAL WITH THE EXIT TUBE WITH ITS END EXTENDING SLIGHTLY INTO THE EXIT TUBE LEAVING AN ANNULAR PASSAGE FOR AIR BETWEEN THEM, AND THE WALL OF THE EXIT TUBE HAVING IN THE IMMEDIATE VICINITY OF THE END OF THE ENTRANCE TUBE A SINGLE RADIAL HOLE COMMUNICATING WITH THE INTERIOR OF THE HOLLOW BODY PORTION, THE AIR INLET BEING ADAPTED TO DIRECT ENTERING AIR TOWARDS THE OVERLAPPING ENDS OF THE YARN ENTRANCE AND EXIT TUBES IN A DIRECTION SUBSTANTIALLY AT RIGHT ANGLES TO THE COMMON AXIS OF THE SAID TUBES.
Claim 2
Dependent Claim
132 words
A JET SUITABLE FOR THE PRODUCTION OF A BULKY YARN FROM A CONTINUOUS FILAMENT YARN, SAID JET COMPRISING A HOLLOW BODY PORTION HAVING AN INLET FOR AIR UNDER PRESSURE, A YARN EXIT TUBE LEADING OUT OF SAID BODY PORTION, A YARN ENTRANCE TUBE COAXIAL WITH THE EXIT TUBE WITH ITS END EXTENDING SLIGHTLY INTO THE EXIT TUBE LEAVING AN ANNULAR PASSAGE FOR AIR BETWEEN THEM, AND THE WALL OF THE EXIT TUBE HAVING IN THE IMMEDIATE VICINITY OF THE END OF THE ENTRANCE TUBE A SINGLE RADIAL HOLE COMMUNICATING WITH THE INTERIOR OF THE HOLLOW BODY PORTION, THE AIR INLET BEING ADAPTED TO DIRECT ENTERING AIR TOWARDS THE OVERLAPPING ENDS OF THE YARN ENTRANCE AND EXIT TUBES IN A DIRECTION SUBSTANTIALLY AT RIGHT ANGLES TO THE COMMON AXIS OF THE SAID TUBES.
References Cited (Backward Citations)
US2852906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |