Patent US3119733A successfully refreshed from Google Patents.
US3119733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distribution plate for paper machine head box having taper-flow inlet
Assignee: Riegel Paper Corp
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Filing: 1961-04-06
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Granted: 1964-01-28
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Expires: 1981-04-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Wilson
- 👤 George W Geiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:16
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A PAPER MAKING APPARATUS INCLUDING A HEAD BOX, A DISTRIBUTION HEADER FOR INTRODUCING STOCK NTO SAID HEAD BOX OVER A WIDE AREA OF DISTRIBUTION, AND AN APERTURED DISTRIBUTION PLATE SEPARATING SAID HEADER FROM SAID HEAD BOX AND PROVIDING FOR THE DISTRIBUTED FLOW OF STOCK FROM THE MANIFOLD TO THE HEAD BOX, THE IMPROVEMENT IN WHICH SAID DISTRIBUTION PLATE IS FORMED OF A SUBSTANTIALLY TRANSPARENT MATERIAL, AT LEAST ONE EDGE OF SAID PLATE BEING OPTICALLY SMOOTH TO PROVIDE VISUAL ACCESS TO THE INTERIOR OF SAID PLATE, SAID PLATE BEING INCORPORATED IN SAID APPARATUS IN A MANNER PROVIDING FOR EXPOSURE OF SAID OPTICALLY SMOOTH EDGE WHILE SAID APPARATUS IS IN OPERATION.
Claim 2
Dependent Claim
110 words
IN A PAPER MAKING APPARATUS INCLUDING A HEAD BOX, A DISTRIBUTION HEADER FOR INTRODUCING STOCK NTO SAID HEAD BOX OVER A WIDE AREA OF DISTRIBUTION, AND AN APERTURED DISTRIBUTION PLATE SEPARATING SAID HEADER FROM SAID HEAD BOX AND PROVIDING FOR THE DISTRIBUTED FLOW OF STOCK FROM THE MANIFOLD TO THE HEAD BOX, THE IMPROVEMENT IN WHICH SAID DISTRIBUTION PLATE IS FORMED OF A SUBSTANTIALLY TRANSPARENT MATERIAL, AT LEAST ONE EDGE OF SAID PLATE BEING OPTICALLY SMOOTH TO PROVIDE VISUAL ACCESS TO THE INTERIOR OF SAID PLATE, SAID PLATE BEING INCORPORATED IN SAID APPARATUS IN A MANNER PROVIDING FOR EXPOSURE OF SAID OPTICALLY SMOOTH EDGE WHILE SAID APPARATUS IS IN OPERATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |