Thread guide unit for circular knitting machines
Abstract
Abstract THIS DISCLOSURE RELATES TO A THREAD GUIDE UNIT FOR RAPIDLY REPLACING ONE THREAD WITH ANOTHER BEFORE COMMENCING THE ROWS OF KNITTING, SAID UNIT COMPRISING A DRUM OSCILLATING ABOUT ITS OWN AXIS AND PROVIDED WITH PERIPHERAL GROOVES EXTENDING PARALLEL TO SAID AXIS, SAID GROOVES BEING ARRANGED TO HOUSE THREAD GUIDE MEMBERS, A STEP CAM FAST WITH SAID DRUM, A FIRST SLIDE MEMBER FOR CAUSING THE LOWERING OF ONE OF SAID THREAD GUIDE MEMBERS, A SEC- OND SLIDE MEMBER ARRANGED TO ENGAGE SAID STEP CAM AND LOCK SAID DRUM, A SERIES OF CONTROL MEMBERS EQUAL IN NUMVER TO THE NUMBER OF STEPS OF SAID STEP CAM, EACH OF SAID CONTROL MEMBERS BEING ARRANGED TO ENGAGE A CORRESPONDING STEP OF SAID CAM AND CAUSE THE ROTATION OF SAID DRUM.
Inventors
- 👤 Francesco Piana
- 👤 Angelo Brega
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |