US3119734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stock inlet and headbox for paper making machines
Assignee: Potlatch Forests Inc
•
Filing: 1960-11-30
•
Granted: 1964-01-28
•
Expires: 1980-11-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:53
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A STOCK INLET COMPRISING A CASING OF GENERALLY CYLINDRICAL SECTION, AN IMPERFORATE ROLL ROTATABLY MOUNTED IN SAID CASING AND EXTENDING LENGTHWISE WITHIN SAID CASING AND OF A DIAMETER RELATIVELY SLIGHTLY LESS THAN THE INNER DIAMETER OF SAID CASING TO LEAVE A RESTRICTED SPACE BETWEEN THE SURFACE OF SAID ROLL AND SAID CASING, SAID ROLL HAVING CORRUGATIONS EXTENDING AXIALLY OF THE SURFACE THEREOF, A PLURALITY OF INLETS CONNECTED TO SAID CASING FROM OUTSIDE THEREOF IN SPACED RELATION AXIALLY OF SAID ROLL AND ARRANGED TO DELIVER STOCK INTO SAID SPACE IN DIRECTIONS PARALLEL WITH A PLANE PERPENDICULAR TO THE AXIS OF SAID ROLL TO CAUSE STOCK ENTERING SAID CASING THERETHROUGH TO IMPINGE ON THE SURFACE OF SAID ROLL AND TO SPREAD AXIALLY THEREOF ALONG SAID CORRUGATIONS, MEANS FORMING AN OUTLET PROJECTING GENERALLY TANGENTIALLY FROM SAID CASING AND EXTENDING CONTINUOUSLY ALONG THE FULL LENGTH THEREOF, MEANS FOR SUPPLYING
Claim 2
Dependent Claim
145 words
A STOCK INLET COMPRISING A CASING OF GENERALLY CYLINDRICAL SECTION, AN IMPERFORATE ROLL ROTATABLY MOUNTED IN SAID CASING AND EXTENDING LENGTHWISE WITHIN SAID CASING AND OF A DIAMETER RELATIVELY SLIGHTLY LESS THAN THE INNER DIAMETER OF SAID CASING TO LEAVE A RESTRICTED SPACE BETWEEN THE SURFACE OF SAID ROLL AND SAID CASING, SAID ROLL HAVING CORRUGATIONS EXTENDING AXIALLY OF THE SURFACE THEREOF, A PLURALITY OF INLETS CONNECTED TO SAID CASING FROM OUTSIDE THEREOF IN SPACED RELATION AXIALLY OF SAID ROLL AND ARRANGED TO DELIVER STOCK INTO SAID SPACE IN DIRECTIONS PARALLEL WITH A PLANE PERPENDICULAR TO THE AXIS OF SAID ROLL TO CAUSE STOCK ENTERING SAID CASING THERETHROUGH TO IMPINGE ON THE SURFACE OF SAID ROLL AND TO SPREAD AXIALLY THEREOF ALONG SAID CORRUGATIONS, MEANS FORMING AN OUTLET PROJECTING GENERALLY TANGENTIALLY FROM SAID CASING AND EXTENDING CONTINUOUSLY ALONG THE FULL LENGTH THEREOF, MEANS FOR SUPPLYING
References Cited (Backward Citations)
CA464219A
Cited
US1707375A
Cited
AT140084B
Cited
GB538740A
Cited
DE1008564B
Cited
US2859668A
Cited
US2869436A
Cited
FR1221899A
Cited
US3043370A
Cited
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 |