Automatic mechanical device for doffing and loading spun yarns in spinning frames,doubling frames and the like
Abstract
Abstract A DOFFING AND DISCHARGING DEVICE FOR THE SUPPORTING MEMBERS CARRYING YARN WOUND ON BOBBIN IN A SPINNING OR DOUBLING FRAME IS DISCLOSED, THE CHARACTERISTIC FEATURE BEING THAT EACH DOFFING AND SLIPPING MEMBER (TO SLIP BOBBINS ON SPINDLES) COMPRISES TWO PORTIONS, THE FIRST OF WHICH ENGAGES THE PERIPHERY OF THE SUPPORTING MEMBER BY GRASPING IT, AND THE SECOND PORTION OF WHICH ENGAGES A DIMETRICALLY OPPOSITE PORTION OF THE SUPPORTING MEM- BER AFORESAID. RESILIENT GASKET MEMBERS ARE PROVIDED ON THE ACTIVE SURFACES SO AS TO AVOID ANY DAMAGE TO THE YARNS WOUND ON THE BOBBIN. MEANS ARE ALSO PROVIDED TO FACILITATE THE DISCHARGE OF THE FULL BOBBINS INTO A RECEPTACLE AND TO POSITION THE EMPTY TUBES ON THE SPINDLES.
Inventors
- 👤 Natale Chiari
- 👤 Giuseppe Inverardi
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |