US3081213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edge coating
Assignee: Union Carbide Corp
•
Filing: 1960-04-13
•
Granted: 1963-03-12
•
Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 Harry G Chinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:17
CPC Classifications
B; B31; B31F; B31F7/00; B31F7/006; B29; B29C; B29C48/00; B29C48/15; B29C48/154; B29C48/155; B29C65/00; B29C65/02; B29C65/40; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/50; B29C65/5057; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/4329; B29C66/49; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72327; B29C66/72328; B29C66/80; B29C66/83; B29C66/836; B31C; B31C3/00; B29C48/03; B29C48/07; B29C48/08; B29C65/5092; B29C66/72321; B29C66/7234; B29K; B29K2711/00; B29K2711/12; B29K2711/123; B29L; B29L2009/00; B31B; B31B50/00; B31B50/74; B31B50/742; B31B50/743; Y; Y10; Y10S; Y10S118/00; Y10S118/03; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
METHOD OF FORMING A STRONG, MOISTURE-PROOF BOND BETWEEN MARGINS OF SHEET MATERIAL COATED ON AT LEAST ONE SIDE WITH THERMOPLASTIC RESIN COMPOSITION, WHICH COMPRISES CONTINUOUSLY SEALING AN EDGE OF PAPER-THIN, SMOOTHSURFACED, DENSE HOMOGENEOUS SHEET MATERIAL BY CONTINUOUSLY WITHDRAWING SAID MATERIAL FROM A SUPPLY ROLL AND PASSING IT ALONG A RECTILINEAR PATH, CONTINUOUSLY EXTRUDING A HOLLOW MASS OF HOT THERMOPLASTIC RESIN MATERIAL HAING AN INTERIOR CONVERGING IN THE DIRECTION OF SAID PATH AND CHANNEL SHAPED IN CROSS SECTION WITH UPPER AND LOWER FLATS AND A CONNECTING WEB, CONTINUOUSLY DIRECTING SAID WEB ONTO SAID EDGE AND SAID FLATS ONTO SAID SHEET SURFACE MARGINS ADJACENT SAID EDGE AT A POINT IN SAID SURFACE PATH AND CONTINOUSLY ADHERING SAID COATING TO SAID EDGE AND SAID MARGINS AS THEY PASS BEYOND SAID POINT AND ON ALONG SAD RECTILINEAR PATH, AND PROGRESSIVELY APPLYING SAID EDGE-COATED MARGIN OVER ANOTHER SURFACE COATED MARGIN IN OVERLAPPING RELATION THEREWITH WHILE SUFFICIENT HEAT REMAINS IN SAID EDGE COATED MARGIN TO FORM STRONG BONDS TO FUSE THE EDGE COATING OF THE FIRST MARGIN TO THE SURFACE COATING OF THE SECOND.
Claim 2
Dependent Claim
178 words
METHOD OF FORMING A STRONG, MOISTURE-PROOF BOND BETWEEN MARGINS OF SHEET MATERIAL COATED ON AT LEAST ONE SIDE WITH THERMOPLASTIC RESIN COMPOSITION, WHICH COMPRISES CONTINUOUSLY SEALING AN EDGE OF PAPER-THIN, SMOOTHSURFACED, DENSE HOMOGENEOUS SHEET MATERIAL BY CONTINUOUSLY WITHDRAWING SAID MATERIAL FROM A SUPPLY ROLL AND PASSING IT ALONG A RECTILINEAR PATH, CONTINUOUSLY EXTRUDING A HOLLOW MASS OF HOT THERMOPLASTIC RESIN MATERIAL HAING AN INTERIOR CONVERGING IN THE DIRECTION OF SAID PATH AND CHANNEL SHAPED IN CROSS SECTION WITH UPPER AND LOWER FLATS AND A CONNECTING WEB, CONTINUOUSLY DIRECTING SAID WEB ONTO SAID EDGE AND SAID FLATS ONTO SAID SHEET SURFACE MARGINS ADJACENT SAID EDGE AT A POINT IN SAID SURFACE PATH AND CONTINOUSLY ADHERING SAID COATING TO SAID EDGE AND SAID MARGINS AS THEY PASS BEYOND SAID POINT AND ON ALONG SAD RECTILINEAR PATH, AND PROGRESSIVELY APPLYING SAID EDGE-COATED MARGIN OVER ANOTHER SURFACE COATED MARGIN IN OVERLAPPING RELATION THEREWITH WHILE SUFFICIENT HEAT REMAINS IN SAID EDGE COATED MARGIN TO FORM STRONG BONDS TO FUSE THE EDGE COATING OF THE FIRST MARGIN TO THE SURFACE COATING OF THE SECOND.
References Cited (Backward Citations)
US2623444A
Cited
US2115368A
Cited
US2138699A
Cited
US2293252A
Cited
US2354426A
Cited
US2555380A
Cited
US2415721A
Cited
US2550520A
Cited
US2677633A
Cited
US2748044A
Cited
US2786622A
Cited
US2757709A
Cited
US2821497A
Cited
US2874752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |