US3334011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headbox with torsion beam support
Assignee: Allis Chalmers Corp
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Filing: 1964-12-18
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Granted: 1967-08-01
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Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Fred J Gedemer
- 👤 George E Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:54
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02; D21F1/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A HEADBOX FOR A PAPER MAKING MACHINE AND THE LIKE COMPRISING: A SHELL STRUCTURE FORMING A BOX HAVING A BOTTOM STRUCTURE, A FRONT WALL STRUCTURE AND A PAIR OF SIDE WALLS DEFINING A STOCK DISCHARGE SLICE OPENING; A TORSION BEAM JOURNALED IN SAID SIDE WALLS FOR ROTATION RELATIVE THERETO AND PROJECTING THROUGH AND OUTWARDLY OF BOTH SAID SIDE WALLS; AT LEAST ONE SUPPORT RIB TRANSVERSE TO SAID FRONT WALL STRUCTURE AND ATTACHED TO SAID BOTTOM STRUCTURE FORWARD OF SAID BEAM; SAID BEAM BEING ARRANGED PARALLEL TO SAID FRONT WALL STRUCTURE AND RIGIDLY CONNECTED TO SAID RIB AT A PREDETERMINED DISTANCE TO THE REAR OF THE FORWARD END OF SAID RIB; AND OPERATING MEANS ATTACHED TO SAID BEAM FOR TWISTING SAID BEAM ABOUT THE CENTRAL AXIS OF SAID BEAM TO ADJUST THE SUPPORT PROVIDED SAID BOTTOM STRUCTURE BY SAID BEAM AND SAID SUPPORT RIB.
Claim 2
Dependent Claim
143 words
A HEADBOX FOR A PAPER MAKING MACHINE AND THE LIKE COMPRISING: A SHELL STRUCTURE FORMING A BOX HAVING A BOTTOM STRUCTURE, A FRONT WALL STRUCTURE AND A PAIR OF SIDE WALLS DEFINING A STOCK DISCHARGE SLICE OPENING; A TORSION BEAM JOURNALED IN SAID SIDE WALLS FOR ROTATION RELATIVE THERETO AND PROJECTING THROUGH AND OUTWARDLY OF BOTH SAID SIDE WALLS; AT LEAST ONE SUPPORT RIB TRANSVERSE TO SAID FRONT WALL STRUCTURE AND ATTACHED TO SAID BOTTOM STRUCTURE FORWARD OF SAID BEAM; SAID BEAM BEING ARRANGED PARALLEL TO SAID FRONT WALL STRUCTURE AND RIGIDLY CONNECTED TO SAID RIB AT A PREDETERMINED DISTANCE TO THE REAR OF THE FORWARD END OF SAID RIB; AND OPERATING MEANS ATTACHED TO SAID BEAM FOR TWISTING SAID BEAM ABOUT THE CENTRAL AXIS OF SAID BEAM TO ADJUST THE SUPPORT PROVIDED SAID BOTTOM STRUCTURE BY SAID BEAM AND SAID SUPPORT RIB.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |