Pressure sealing apparatus for processing of fibers in tow form
Abstract
Abstract APPARATUS FOR SEALING A HIGH PRESSURE CONTINUOUS PROCESSING CHAMBER FOR FIBERS OR YARNS IN TOW-FORM, FROM THE OUTSIDE ATMOSPHERE, THE PRINCIPAL APRT OF WHICH IS A TUBE CONNECTED TO SAID HIGH PRESSURE PROCESSING CHAMBER, MADE OF A PRACTICALLY ELASTIC MATERIAL AND INSTALLED IN A PROTECTING PRESSURE CHAMBER AND THE CROSS-SECTIONAL AREA OF SAID TUBE RELATIVE TO THE TOTAL CROSS-SECTIONAL AREA OF FIBERS PASSING SAID TUBE BEING REDUCIBLE BY CONTROLLING THE GAP OF A SET OF TWO PLATES WHICH ARE POSITIONED ALONG SAID SMALL TUBE SO AS TO CLAMP SAID SMALL TUBNE, WHEREBY LEAKAGE RESISTANCE OF PRESSURIZED GAS FROM THE HIGH PRESSURE PROCESSING CHAMBER IS INCREASED WITHOUT AFFORDING ANY HARMFUL EFFECT TO THE FIBERS OR YARNS, SAID PROCESSING IS STRETCHING, RELAXATION, SCOURING, BLEACHING, DYEING, CHEMICAL TREATMENT OR THE LIKE UNDER EVELATED TEMPERATURE AND PRESSURE.
Inventors
- 👤 Masahide Yazawa
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |