Single endless strand mounted in a series of parallel convolutions as a fibrous web supporting surface in a papermaking machine
Abstract
Abstract A DYNAMIC PAPER WEB SUPPORTING STRUCTURE FOR A PAPERMAKING MACHINE IN WHICH CROSS DIRECTION ELEMENTS ARE EIMINATED. A SINGLE ENDLESS STRAND IS MOUNTED TO TRAVEL IN AN ENDLESS PATH OVER A SERIES OF ROLLS, AND ADJACENT MACHINE DIRECTION LOOPS OR CONVOLUTIONS OF THE ENDLESS STRAND ARE IN CLOSELY SPACED PARALLEL RELATION AND FORM A MOVING SUPPORTING SURFACE FOR THE PAPER WEB AND ADVANCE THE WEB THROUGH THE MACHINGE. DURING THE PAPERMAKING PROCESS BOTH WATER AND WATER VAPOR ARE EXTRACTED, WHILE THE PAPER SHEET IS BEING FORMED, PRESSED AND DRIED. ALTERNATE CONVOLUTIONS OF THE SINGLE ENDLESS STRAND CAN BE SEPARATED FROM THE SUPPORTING SURFACE AND PASSED IN ANGULAR CONTACTING RELAION WITH EACH OTHER FOR CLEANING PURPOSES. A PIVOTABLE COMB CAN ALSO BE EPLOYED IN CONTACT WITH THE STRAND CONVOLUTIONS OUTSIDE THE SUPPORTING SURFACE TO ADJUST THE SPACING THEREBETWEEN.
Inventors
- 👤 F Orbison
- 👤 H Helland
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |