Patent US3323936A successfully refreshed from Google Patents.
US3323936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating and impregnating apparatus and method
Assignee: General Foods Corp
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Filing: 1963-11-12
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Granted: 1967-06-06
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Ingvar L Tolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:44
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/742; B31B50/747; B31B50/743
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
APPARATUS FOR COATING AND IMPREGNATING A FREE EDGE PORTION OF A BLANK OF PAPERBOARD AND THE LIKE WITH A THERMOPLASTIC MATERIAL, COMPRISING A TOP GUIDE FORMED WITH A FACE EXTENDING ALONG A LOWER SURFACE THEREOF, A BOTTOM GUIDE POSITIONED GENERALLY BENEATH SAID TOP GUIDE AND FORMED WITH A FACE EXTENDING ALONG AN UPPER SURFACE THEREOF, SAID LOWER AND UPPER SURFACES BEING IN GENERAL VERTICAL ALIGNMENT AND OPPOSED TO EACH OTHER SO THAT THEY FORM AN ELONGATED SLOT BETWEEN THEM, SAID SLOT HAVING A WIDTH APPROXIMATING THE THICKNESS OF SAID BLANK AT SAID FREE EDGE PORTION, THE FACE OF ONE OF SAID GUIDES HAVING FORMED THEREIN AN ORIFICE FOR CONDUCTING MOLTEN THERMOPLASTIC MATERIAL PUMPED AT A PREDETERMINED PRESSURE TO SAID SLOT AND ONTO SAID FREE EDGE PORTION THEREIN, AND A GUIDE SPACER TO WHICH SAID TOP AND BOTTOM GUIDES ARE FIXED WITH SAID OPPOSED FACES SPACED FROM EACH OTHER, SAID GUIDE SPACER HAVING A WALL ADJACENT TO SAID SLOT AND DEFINING AN INWARD CONTINUOUS LIMIT THEREOF.
Claim 2
Dependent Claim
165 words
APPARATUS FOR COATING AND IMPREGNATING A FREE EDGE PORTION OF A BLANK OF PAPERBOARD AND THE LIKE WITH A THERMOPLASTIC MATERIAL, COMPRISING A TOP GUIDE FORMED WITH A FACE EXTENDING ALONG A LOWER SURFACE THEREOF, A BOTTOM GUIDE POSITIONED GENERALLY BENEATH SAID TOP GUIDE AND FORMED WITH A FACE EXTENDING ALONG AN UPPER SURFACE THEREOF, SAID LOWER AND UPPER SURFACES BEING IN GENERAL VERTICAL ALIGNMENT AND OPPOSED TO EACH OTHER SO THAT THEY FORM AN ELONGATED SLOT BETWEEN THEM, SAID SLOT HAVING A WIDTH APPROXIMATING THE THICKNESS OF SAID BLANK AT SAID FREE EDGE PORTION, THE FACE OF ONE OF SAID GUIDES HAVING FORMED THEREIN AN ORIFICE FOR CONDUCTING MOLTEN THERMOPLASTIC MATERIAL PUMPED AT A PREDETERMINED PRESSURE TO SAID SLOT AND ONTO SAID FREE EDGE PORTION THEREIN, AND A GUIDE SPACER TO WHICH SAID TOP AND BOTTOM GUIDES ARE FIXED WITH SAID OPPOSED FACES SPACED FROM EACH OTHER, SAID GUIDE SPACER HAVING A WALL ADJACENT TO SAID SLOT AND DEFINING AN INWARD CONTINUOUS LIMIT THEREOF.
Claim 3
Independent Claim
47 words
A METHOD OF IMPREGNATING AND COATING A FREE, SERRATED EDGE OF A BLANK OF PAPERBOARD AND THE LIKE WITH A THERMOPLASTIC MATERIAL, COMPRISING MOVING SAID BLANK INTO AN ELONGATED SLOT SO THAT SAID EDGE IS DISPOSED AT SAID SLOT, SAID SLOT HAVING A THICKNESS APPROXMATING THE THICK-
Claim 4
Independent Claim
47 words
A METHOD OF IMPREGNATING AND COATING A FREE, SERRATED EDGE OF A BLANK OF PAPERBOARD AND THE LIKE WITH A THERMOPLASTIC MATERIAL, COMPRISING MOVING SAID BLANK INTO AN ELONGATED SLOT SO THAT SAID EDGE IS DISPOSED AT SAID SLOT, SAID SLOT HAVING A THICKNESS APPROXMATING THE THICK-
References Cited (Backward Citations)
US2016316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |