Double cantilever supported doctor blade
Abstract
Abstract A DOCTOR IS DISCLOSED HAVING A PIVOTABLE DOCTOR BACK PARALLEL TO AND SPACED FROM A ROLL OF A PAPER MAKING MACHINE. A BLADE CARRIED BY A BLADE HOLDER IS CONNECTED TO THE BACK BY RESILIENT MEANS COMPRISING A FIRST CANTILEVER CONNECTED TO THE DOCTOR BACK AND PROJECTING AWAY FROM THE ROLL, AND A SECOND CANTILEVER CONNECTED TO THE FREE END OF THE FIRST CANTILEVER WITH THE FREE END OF THE SECOND CANTILEVER PROJECTING TOWARD THE ROLL. THE SECOND CANTILEVER SUPPORTS ON THE FREE END THEREOF A BLAND HOLDING ASSEMBLY TO CARRY THE BLADE. TEH BLADE IS THUS CARRIED BY A DOUBLE CANTILEVERED RESILIENT MEANS FOR SUPPLEMENTING THE RESILIENCY OF THE BLADE FOR CONTOUR FOLLOWING ENGAGEMENT OF THE BLADE WITH THE ROLL.
Inventors
- 👤 Donald B De Noyer
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |