Xerographic plate fabrication
Abstract
Abstract A XEROGRAPHIC DRUM AND METHOD FOR FABRICATING THE SAME WHEREWIN A FLEXIBLE, CONDUCTIVE, SHEET-LIKE SUBSTRATE HAVING A PHOTOCONDUCTIVE SURFACE THEREON IS BONDED TO THE SURFACE OF A DRUM BLANK. A LATERAL FOLD IS FORMED IN THE FLEXIBLE SUBSTRATEALONG ONE EDGE THEREOF WHICH EDGE BECOMES THE TRAILING EDGE WHEN THE SUBSTRATE IS PLACED ON THE DRUM BLANK. THE LEADING OR NON-FOLDED EDGE OF THE FLEXIBLE SUBSTRATE IS BONDED TO THE DRUM SURFACE AND AS THE DRUM BLANK IS ROTATED, THE FLEXIBLE SUBSTRATE IS HELD TAUT TO PRODUCE A TIGHTLY WRAPPED RELATIONSHIP THEREBETWEEN. THE TRAILING OR FOLDED EDGE IS PLACED IN OVERLAPPING RELATIONSHIP TO THE BONDED LEADING EDGE AND THE TRAILING PORTION OF THE SUBSTRATE BONDED TO THE DRUM BLANK AT A POINT PRECEDING THE FOLD. AFTER BONDING OF THE TRAILING PORTION OF THE SUBSTRATE, THE FOLD, AS A RESULT OF THE RESILIENCY OF MATERIALS, PRODUCES A TIGHT, FLEXIBLE SEAL WHICH PREVENTS DEVELOPER MATERIAL FROM ACCUMULATING BETWEEN THE DRUM BLANK AND THE SUBSTRATE.
Inventors
- 👤 John J Elchisak
- 👤 Edward M Van Wagner
- 👤 William D Hope
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |