US3190781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for laminating sheet material
Assignee: Fort James Corp
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Filing: 1962-05-22
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Granted: 1965-06-22
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Expires: 1982-05-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Peter J Metz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:20
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; B; B32; B32B; B32B37/00; B32B37/10; B32B37/1018; B32B2317/00; B32B2317/12; B32B2323/00; B32B37/14; B32B37/15; B32B37/153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
THE CONTINUOUS METHOD OF LAMINATING A FLEXIBLE TACKY SHEET ONTO A FLEXIBLE POROUS WEB WHICH COMPRISES PROVIDING A RELATIVELY NARROW TUBULAR STRUCTURE HAVING A CONVEX CURVED PORTION AND PERFORATE PORTION THEREIN, CONTINUOUSLY MOVING AND GUIDING SAID POROUS WEB IN A CONVEX BEND OVER SAID CURVED PORTION INTO CONTACT WITH SAID CURVED PORTION AT LOCATIONS BOTH AHEAD OF AND BEYOND SAID PERFORATE PORTION TO PROVIDE VACUUM SEALS AT SUCH LOCATIONS, CONTINUOUSLY MOVING SAID TACKY SHEET IN ANGULAR RELATIONSHIP WITH RESPECT TO AND INTO CONTACT WITH THE UPPER FACE OF SAID POROUS WEB AT A LOCATION ON SAID CONVEX BEND CLOSELY ADJACENT TO AND AHEAD OF SAID PERFORTE PORTION, AND CONTINUOUSLY MAINTAINING A PARTIAL VACUUM IN SAID TUBULAR STRUCTURE TO ACT AGAINST THE UNDERSIDE OF SAID POROUS WEB THROUGH SAID PERFORATE PORTION TO EFFECT ADHESIVE BONDING OF SAID TACKY SHEET TO SAID POROUS WEB AS THEY MOVE CONTINUOUSLY TOGETHER OVER SAID PERFORATE PORTION.
Claim 2
Dependent Claim
151 words
THE CONTINUOUS METHOD OF LAMINATING A FLEXIBLE TACKY SHEET ONTO A FLEXIBLE POROUS WEB WHICH COMPRISES PROVIDING A RELATIVELY NARROW TUBULAR STRUCTURE HAVING A CONVEX CURVED PORTION AND PERFORATE PORTION THEREIN, CONTINUOUSLY MOVING AND GUIDING SAID POROUS WEB IN A CONVEX BEND OVER SAID CURVED PORTION INTO CONTACT WITH SAID CURVED PORTION AT LOCATIONS BOTH AHEAD OF AND BEYOND SAID PERFORATE PORTION TO PROVIDE VACUUM SEALS AT SUCH LOCATIONS, CONTINUOUSLY MOVING SAID TACKY SHEET IN ANGULAR RELATIONSHIP WITH RESPECT TO AND INTO CONTACT WITH THE UPPER FACE OF SAID POROUS WEB AT A LOCATION ON SAID CONVEX BEND CLOSELY ADJACENT TO AND AHEAD OF SAID PERFORTE PORTION, AND CONTINUOUSLY MAINTAINING A PARTIAL VACUUM IN SAID TUBULAR STRUCTURE TO ACT AGAINST THE UNDERSIDE OF SAID POROUS WEB THROUGH SAID PERFORATE PORTION TO EFFECT ADHESIVE BONDING OF SAID TACKY SHEET TO SAID POROUS WEB AS THEY MOVE CONTINUOUSLY TOGETHER OVER SAID PERFORATE PORTION.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |