Multi-ply paper formation
Abstract
Abstract THIS INVENTION RELATES TO A PAPER MAKING MACHINE FOR FORMING A PLURAL OR MULTI-PLY WEB USING MORE COMPACT AND EFFICIENT PLY-FORMING SEQUENCES THAN ARE ORDINARILY EMPLOYED IN CONVENTIONAL CYLINDER MACHINES. THIS IS DONE IN EACH SUCH SEQUENCE BY THE USE OF A SINGLE WEB PLYFORMING ZONE DEFINED BETWEEN A MAIN FELT CARRYING A PREFORMED PLY AND CONVERGING FORMING WIRE WRAPPED OVER A WATER-PERMEABLE GUIDE OR SUCTION BOX DESIGNED FOR EFFICIENT AND RAPID WATER REMOVAL VIA THE WIRE, WITH QUALITY INCIPIENT WEB FORMATION IN THE PLY SO FORMED, FOLLOWED IMMEDIATELY BY MERGING OF SUCH PLY INTO THE DESIRED MULTIPLY MOIST WEB OF GOOD QUALITY. IN THIS ARRANGEMENT, THE FELT CARRIES THE RESULTANT MULTI-PLY WEB FROM SEQUENCE, TO SEQUENCE THEREBY ALLOWING FOR INTERMEDIATE DEWATERING AT PRESS NIPS RECEIVING THE FELT CARRYING THE RESULTANT WEB IN EACH INSTANCE.
Inventors
- 👤 Jerome P Brezinski
Bibliographic Details
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |