Press assembly
Abstract
Abstract THIS RELATES TO A PRESS ARRANGEMENT FOR EXPRESSING LIQUID FROM A LIQUID-BEATING FIBROUS WEB, SUCH AS A MOIST PAPER WEB. THE PRESS NIP IS DEFINED BETWEEN A PAIR OF PRESS ROLLS, AT LEAST ONE OF WHICH IS EQUIPPED TO RECEIVE AND CARRY AWAY LIQUID, E.G., A GROOVED ROLL OR A SUCTION ROLL, WHICH ROLL IS WRAPPED BY A PAIR OF FELTS. THE FELT IMMEDIATELY ADJACNET SUCH ROLL HAS HIGH LIQUID PERMEABILITY AND HIGH EXPANSIBILITY AT THE-RUNNING SIDE OF THE NIP. THE SECOND FELT IS INTERPOSED BETWEEN THE FIRST FELT AND THE WEB AND SUCH SECOND FELT HAS LOW LIQUID-PERMEABILITY AND LOW EXPANSIBILITY, SUCH THAT IT PERMITS EXPRESSION OF LIQUID UNDER THE HIGH NIP PRESSURES BUT FUNCTIONS AS A BARRIER TO REWETTING OF THE WEB AT THE OFF-RUNNING SIDE OF THE NIP.
Inventors
- 👤 Dennis Callahan Cronin
Bibliographic Details
Claims Analysis
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |