US3230928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade coater
Assignee: Oxford Paper Co
•
Filing: 1961-02-02
•
Granted: 1966-01-25
•
Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Constantine J Stalmuke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:31
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/32; D21H23/34; D21H23/36; B; B05; B05C; B05C11/00; B05C11/02; B05C11/04; B05C11/045; B05C3/00; B05C3/18; D21H5/00; D21H5/0005; D21H5/0012; D21H5/0015; D21H5/0017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A TRAILING BLADE COATER OF THE TYPE COMPRISING A BACKING ROLL WHICH A WEB IS PASSED, A RESERVOIR BODY FOR COATING MATERIAL POSITIONED COOPERATIVELY WITH RESPECT TO SAID BACKING ROLL, AND A TRAILING BLADE HAVING A PRINCIPAL PLANE AND A WORKING SURFACE FORMING, IN EFFECT, A PORTION OF THE BOTTOM WALL OF SAID RESERVOIR BODY, SAID BACKING ROLL, RESERVOIR, BODY AND BLADE COOPERATIVELY FORMING A RESERVOIR FOR HOLDING A SUPPLY OF COATING MATERIAL, SAID BLADE HAVING A NORMAL WEAR ANGLE LESS THAN 40* BEING MOUNTED AT AN ANGLE OF ABOUT 40*-50* WITH RESPECT TO A PLANE WHICH IS TANGENT TO THE SURFACE OF THE BACKING ROLL AND EXTENDS THROUGH THE POINT OF INTERSECTION OF THE PRINCIPAL PLANE OF THE BLADE WITH THE BACKING ROLL SURFACE, THE IMPROVEMENT CHARACTERIZED BY SAID BLADE BEING FORMED TO HAVE A TOE ANGLE OF NOT SUBSTANTIALLY MORE THAN 90* NOR SUBSTANTIALLY LESS THAN 60*.
Claim 2
Dependent Claim
150 words
IN A TRAILING BLADE COATER OF THE TYPE COMPRISING A BACKING ROLL WHICH A WEB IS PASSED, A RESERVOIR BODY FOR COATING MATERIAL POSITIONED COOPERATIVELY WITH RESPECT TO SAID BACKING ROLL, AND A TRAILING BLADE HAVING A PRINCIPAL PLANE AND A WORKING SURFACE FORMING, IN EFFECT, A PORTION OF THE BOTTOM WALL OF SAID RESERVOIR BODY, SAID BACKING ROLL, RESERVOIR, BODY AND BLADE COOPERATIVELY FORMING A RESERVOIR FOR HOLDING A SUPPLY OF COATING MATERIAL, SAID BLADE HAVING A NORMAL WEAR ANGLE LESS THAN 40* BEING MOUNTED AT AN ANGLE OF ABOUT 40*-50* WITH RESPECT TO A PLANE WHICH IS TANGENT TO THE SURFACE OF THE BACKING ROLL AND EXTENDS THROUGH THE POINT OF INTERSECTION OF THE PRINCIPAL PLANE OF THE BLADE WITH THE BACKING ROLL SURFACE, THE IMPROVEMENT CHARACTERIZED BY SAID BLADE BEING FORMED TO HAVE A TOE ANGLE OF NOT SUBSTANTIALLY MORE THAN 90* NOR SUBSTANTIALLY LESS THAN 60*.
References Cited (Backward Citations)
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |