US3114231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the manufacture of bast fibre yarn
Assignee: NOVIVLAS NV
•
Filing: 1961-02-21
•
Granted: 1963-12-17
•
Expires: 1981-02-21
Abstract
No abstract record available.
Inventors
- 👤 Selling Hendrik Johannes
- 👤 Bok Cornelis
- 👤 Frans Johan Van Krugten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:09
CPC Classifications
D; D02; D02G; D02G3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD FOR MANJFACTURING A BAST FIBRE YARN, WHICH COMPRISES SCUTCHING BAST FIBRE STALKS, CHEMICALLY DECOMPOSING SAID SCUTCHED STALKS, PASSING A WET ROVING OF THE BAST FIBRES SO OBTAINED THROUGH A DRAFTING FRAME, PASSING THE YARN ORIGINATING FROM THE DRAFTING FRAME ACCORDING TO A STRAIGHT GENERATRIX ALONG THE INNER WALL OF A RING ROTATING ABOUT ITS AXIS AND ROTATING RING HAVING AN INNER SURFACE INTHE SHAPE OF A HYPERBOLOID OF REVOLUTION, WHEREBY SAID YARN IS ROLLED AND A FALSE-TWIST IS IMPARTED THERETO AT A RELATIVELY LOW LEVEL OF TENSION IN SAID YARN, AND SUBSEQUENTLY DRYING AND COLLECTING SAID TWISTED YARN.
Claim 2
Independent Claim
100 words
A METHOD FOR MANJFACTURING A BAST FIBRE YARN, WHICH COMPRISES SCUTCHING BAST FIBRE STALKS, CHEMICALLY DECOMPOSING SAID SCUTCHED STALKS, PASSING A WET ROVING OF THE BAST FIBRES SO OBTAINED THROUGH A DRAFTING FRAME, PASSING THE YARN ORIGINATING FROM THE DRAFTING FRAME ACCORDING TO A STRAIGHT GENERATRIX ALONG THE INNER WALL OF A RING ROTATING ABOUT ITS AXIS AND ROTATING RING HAVING AN INNER SURFACE INTHE SHAPE OF A HYPERBOLOID OF REVOLUTION, WHEREBY SAID YARN IS ROLLED AND A FALSE-TWIST IS IMPARTED THERETO AT A RELATIVELY LOW LEVEL OF TENSION IN SAID YARN, AND SUBSEQUENTLY DRYING AND COLLECTING SAID TWISTED YARN.
References Cited (Backward Citations)
US564275A
Cited
US1757349A
Cited
US1986970A
Cited
US2117675A
Cited
US2230269A
Cited
US2128929A
Cited
US2291819A
Cited
US2418995A
Cited
US2778186A
Cited
US2647358A
Cited
US2883826A
Cited
US2741894A
Cited
US2936567A
Cited
US2916870A
Cited
US2946180A
Cited
FR1216146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |