Sealing of paper ribbon projecting edge portions on woodpulp insulated conductors
Abstract
Abstract APPARATUS AND PROCESS WHEREIN AN ELECTRICAL CONDUCTOR IS PASSED THROUGH A CYLINDRICAL MOLD IMMERSED IN A TANK OF WOODPULP, AND THE PULP IS SQUEEZED TO REMOVE EXCESS WATER AND TO LEAVE A RIBBON OF PAPER WITH THE CONDUCTOR IMBEDDED THEREIN. THE CONDUCTOR IS LOCATED OFF CENTER IN THE PULP MASS SO THAT A GREATER WIDTH OF PAPER RIBBON PROJECTS FROM ONE SIDE OF THE CONDUCTOR THAN FROM THE OTHER. WATER IS APPLIED TO ONE PAPER RIBBON OR PROJECTING EDGE TO REFLOAT SOME OF THE SURFACE FIBERS OF THE PAPER SO THAT THEY ARE HELD AGAINST THE SEAM OF THE PAPER RIBBON WITH A HELICAL CONFORMATION DURING THE WRAPPING OPERATION, THUS PROVIDING MEANS FOR HOLDING THE SEAM CLOSED. THE PROJECTING EDGE PORTIONS ARE THEN WRAPPED CIRCUMFERENTIALLY AND THE LONGER EDGE PORTION OVERLAPS THE SHORTER EDGE PORTION. THE FINISHED INSULATION, THEREFORE, HAS ONLY ONE SEAM.
Inventors
- 👤 Ludwik Jachimowicz
- 👤 Jerzy A Olszewski
- 👤 Edwin W Reasoner
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |