US3323754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioning device
Assignee: Individual
•
Filing: 1965-04-15
•
Granted: 1967-06-06
•
Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 Nixdorf Joachim
- 👤 Burgel Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:07
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/105; B21; B21C; B21C47/00; B21C47/34; B21C47/3466; B21C47/3475; B21F; B21F9/00; B21F9/002; B21F9/007; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN APPARATUS FOR TENSIONING ULTARFINE FILAMENTARY MATERIAL PRIOR TO WINDING COMPRISING MEANS SUPPLYING SAID FILAMENTARY MATERIAL, ROTATABLE MEANS RECEIVING SAID FILAMENTARY MATERIAL, A SUBSTANTIALLY HORIZONTAL TUBE HAVING AN OPEN END AND A CLOSED END AND BEIGN DISPOSED BELOW, AND TRANSVERSALLY OF, THE PATH OF SAID FILAMENTARY MATERIAL FROM SAID SUPPLY TO SAID RECEIVING MEANS, AND PRESSURE GAS SUPPLYING MEANS CONNECTED TO SAID OPEN END OF THE TUBE, SAID TUBE BEING PROVIDED ALONG ITS HIGHEST CIRCUMFERENTIAL LINE EXTENDING PARALLEL TO ITS AXIS WITH A PLURALITY OF ALIGNED SPACED APERTURES, THE DIAMETER OF SAID APERTURES INCREASING FROM THE MIDDLE OF SAID TUBE TOWARDS THE ENDS OF THE TUBE AND THE TOTAL CROSS SECTIONAL AREA OF SAID APERTURES BEING SMALLER THAN THE CROSS SECTION OF SAID TUBE.
Claim 2
Independent Claim
124 words
AN APPARATUS FOR TENSIONING ULTARFINE FILAMENTARY MATERIAL PRIOR TO WINDING COMPRISING MEANS SUPPLYING SAID FILAMENTARY MATERIAL, ROTATABLE MEANS RECEIVING SAID FILAMENTARY MATERIAL, A SUBSTANTIALLY HORIZONTAL TUBE HAVING AN OPEN END AND A CLOSED END AND BEIGN DISPOSED BELOW, AND TRANSVERSALLY OF, THE PATH OF SAID FILAMENTARY MATERIAL FROM SAID SUPPLY TO SAID RECEIVING MEANS, AND PRESSURE GAS SUPPLYING MEANS CONNECTED TO SAID OPEN END OF THE TUBE, SAID TUBE BEING PROVIDED ALONG ITS HIGHEST CIRCUMFERENTIAL LINE EXTENDING PARALLEL TO ITS AXIS WITH A PLURALITY OF ALIGNED SPACED APERTURES, THE DIAMETER OF SAID APERTURES INCREASING FROM THE MIDDLE OF SAID TUBE TOWARDS THE ENDS OF THE TUBE AND THE TOTAL CROSS SECTIONAL AREA OF SAID APERTURES BEING SMALLER THAN THE CROSS SECTION OF SAID TUBE.
References Cited (Backward Citations)
US2678173A
Cited
US2796223A
Cited
FR1140629A
Cited
US3087664A
Cited
FR1280075A
Cited
US3201985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |