US3285793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a composite cellular material
Assignee: Sealed Air Corp
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Filing: 1962-07-19
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Granted: 1966-11-15
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Expires: 1982-07-19
Abstract
No abstract record available.
Inventors
- 👤 Marc A Chavannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:46
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/30; B29C43/305; B29C65/00; B29C65/48; B29C65/78; B29C65/7858; B29C65/7888; B29C65/7894; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/131; B29C66/40; B29C66/41; B29C66/43; B29C66/438; B29C66/45; B29C66/70; B29C66/72; B29C66/723; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C66/83415; B32; B32B; B32B27/00; B29C66/71; B29C66/7234; B29C66/72341; B29C66/72343; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025; Y10T156/1043; Y10T156/1044; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
308 words
THE METHOD OF MANUFACTURING A COMPOSITE CELLULAR MATERIAL COMPRISING THE STEPS OF HEATING A FIRST THERMOPLASTIC LAMINATE HAVING ON LAMINAE WITH A MELTING POINT ABOVE THAT OF THE OTHER LAMINAE, SAID OTHER LAMINAE BEING HEATED TO BRING ITS OUTER SURFACE TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, EMBOSSING SAID HEATED LAMINATE BY FEEDING IT ONTO AN EMBOSSING ROLLER HAVING A PLURALITY OF DISCRETE RECESSES THEREIN, SAID OTHER LAMINAE FACING OUTWARDLY, HEATING A SECOND LAMINATE HAVING ONE LAMINAE WITH A MELTING POINT ABOVE THE MELTING POINT OF THE OTHER LAMINAE, THE OUTER SURFACE OF THE OTHER LAMINAE OF SAID SECOND LAMINATE BEING HEATED TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, THEN FEEDING THE SAID OUTER SURFACE OF THE LAST SAID LAMINATE INTO CONTACT WITH THE FIRST SAID LAMINATE WHILE ON THE EMBOSSING ROLLER TO FORM A UNITARY STRUCTURE WITH THE EMBOSSED PORTIONS TO THE FIRST SAID LAMINATE BEING SEALED, AND THEN REMOVING THE COMPOSITE STRUCTURE FROM THE EMBOSSING ROLLER. ABOVE THAT OF THE OTHER LAMINAE, SAID OTHER LAMINAE BEING HEATED TO BRING ITS OUTER SURFACE TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, EMBOSSING SAID HEATED LAMINATE BY FEEDING IT ONTO AN EMBOSSING ROLLER HAVING A PLURALITY OF DISCRETE RECESSES THEREIN, SAID OTHER LAMINAE FACING OUTWARDLY, HEATING A SECOND LAMINATE HAVING ONE LAMINAE WITH A MELTING POINT ABOVE THE MELTING POINT OF THE OTHER LAMINAE, THE OUTER SURFACE OF THE OTHER LAMINAE OF SAID SECOND LAMINATE BEING HEATED TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, THEN FEEDING THE SAID OUTER SURFACE OF THE LAST SAID LAMINATE INTO CONTACT WITH THE FIRST SAID LAMINATE WHILE ON THE EMBOSSING ROLLER TO FORM A UNITARY STRUCTURE WITH THE EMBOSSED PORTIONS OF THE FIRST SAID LAMINATE BEING SEALED, AND THEN REMOVING THE COMPOSITE STRUCTURE FROM THE EMBOSSING ROLLER.
Claim 2
Independent Claim
308 words
THE METHOD OF MANUFACTURING A COMPOSITE CELLULAR MATERIAL COMPRISING THE STEPS OF HEATING A FIRST THERMOPLASTIC LAMINATE HAVING ON LAMINAE WITH A MELTING POINT ABOVE THAT OF THE OTHER LAMINAE, SAID OTHER LAMINAE BEING HEATED TO BRING ITS OUTER SURFACE TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, EMBOSSING SAID HEATED LAMINATE BY FEEDING IT ONTO AN EMBOSSING ROLLER HAVING A PLURALITY OF DISCRETE RECESSES THEREIN, SAID OTHER LAMINAE FACING OUTWARDLY, HEATING A SECOND LAMINATE HAVING ONE LAMINAE WITH A MELTING POINT ABOVE THE MELTING POINT OF THE OTHER LAMINAE, THE OUTER SURFACE OF THE OTHER LAMINAE OF SAID SECOND LAMINATE BEING HEATED TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, THEN FEEDING THE SAID OUTER SURFACE OF THE LAST SAID LAMINATE INTO CONTACT WITH THE FIRST SAID LAMINATE WHILE ON THE EMBOSSING ROLLER TO FORM A UNITARY STRUCTURE WITH THE EMBOSSED PORTIONS TO THE FIRST SAID LAMINATE BEING SEALED, AND THEN REMOVING THE COMPOSITE STRUCTURE FROM THE EMBOSSING ROLLER. ABOVE THAT OF THE OTHER LAMINAE, SAID OTHER LAMINAE BEING HEATED TO BRING ITS OUTER SURFACE TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, EMBOSSING SAID HEATED LAMINATE BY FEEDING IT ONTO AN EMBOSSING ROLLER HAVING A PLURALITY OF DISCRETE RECESSES THEREIN, SAID OTHER LAMINAE FACING OUTWARDLY, HEATING A SECOND LAMINATE HAVING ONE LAMINAE WITH A MELTING POINT ABOVE THE MELTING POINT OF THE OTHER LAMINAE, THE OUTER SURFACE OF THE OTHER LAMINAE OF SAID SECOND LAMINATE BEING HEATED TO A TEMPERATURE IN THE VICINITY OF THE MELTING POINT THEREOF, THEN FEEDING THE SAID OUTER SURFACE OF THE LAST SAID LAMINATE INTO CONTACT WITH THE FIRST SAID LAMINATE WHILE ON THE EMBOSSING ROLLER TO FORM A UNITARY STRUCTURE WITH THE EMBOSSED PORTIONS OF THE FIRST SAID LAMINATE BEING SEALED, AND THEN REMOVING THE COMPOSITE STRUCTURE FROM THE EMBOSSING ROLLER.
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |