US3143438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating web material
Assignee: West Virginia Pulp and Paper Co
•
Filing: 1960-07-26
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Granted: 1964-08-04
•
Expires: 1980-07-26
Abstract
No abstract record available.
Inventors
- 👤 Campbell Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:20
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H25/12; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; D21H5/0067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A DEVICE TO METER AND SMOOTH COATING MATERIAL APPLIED TO A TRAVELING WEB COMPRISING, IN COMBINATION,A FLEXIBLE CYLINDRICAL DOCTOR ROD, A ROD RECEIVING MEMBER ONE END OF WHICH IS CIRVED TO ROTATIVELY SUPPORT AND SURROUND THE ROD IN THE ORDER OF ABOUT 90 DEGREES OF THE CIRCUMFERENCE OF THE ROD, A FLEXIBLE DOCTOR BLADE FOR CLEANING SAID ROD, SAID BLADE ATTACHED TO SAID ROD RECEIVING MEMBER, ONE END OF WHICH BLADE BEARS APPROCIMATELY TANGENTIALLY AGAINST THE ROD AT A POINT APPROXIMIATELY DIAMETRICALLY OPPOSTE A CENTER PORTION OF THE CURVED END OF SAID ROD RECEIVING MEMBER, AND A RIGID SUPPORT ON WHICH THE OTHER END OF SAID BLADE IS MOUNTED.
Claim 2
Independent Claim
109 words
A DEVICE TO METER AND SMOOTH COATING MATERIAL APPLIED TO A TRAVELING WEB COMPRISING, IN COMBINATION,A FLEXIBLE CYLINDRICAL DOCTOR ROD, A ROD RECEIVING MEMBER ONE END OF WHICH IS CIRVED TO ROTATIVELY SUPPORT AND SURROUND THE ROD IN THE ORDER OF ABOUT 90 DEGREES OF THE CIRCUMFERENCE OF THE ROD, A FLEXIBLE DOCTOR BLADE FOR CLEANING SAID ROD, SAID BLADE ATTACHED TO SAID ROD RECEIVING MEMBER, ONE END OF WHICH BLADE BEARS APPROCIMATELY TANGENTIALLY AGAINST THE ROD AT A POINT APPROXIMIATELY DIAMETRICALLY OPPOSTE A CENTER PORTION OF THE CURVED END OF SAID ROD RECEIVING MEMBER, AND A RIGID SUPPORT ON WHICH THE OTHER END OF SAID BLADE IS MOUNTED.
References Cited (Backward Citations)
US1566358A
Cited
US2695004A
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US2729192A
Cited
US2946307A
Cited
US3001390A
Cited
US2874674A
Cited
US3029779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |