US3323965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of laminating dissimilar materials
Assignee: Continental Can Co Inc
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Filing: 1964-08-18
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Granted: 1967-06-06
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Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 John E Hanle
- 👤 James M Throne
- 👤 Kenneth W Rarey
- 👤 Larry V Cernauskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:53
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A METHOD OF FORMINA A LAMINATED STRUCTURE HAVING AN ELECTRICALLY CONDUCTIVE CORE AND LAYERS OF THERMOPLASTIC INSULATING MATERIAL ADHERENT TO OPPOSITE FACES THEREOF, SAID INSULATING MATERIAL BEING CAPABLE OF ACQUIRING AND RETAINING A NON-CONDUCTIVE STATE WHEN IN A MOLTEN CONDITION AND CAPABLE OF FUSION BONDING TO THE CORE, WHICH COMPRISES PREHEATING THE CONDUCTIVE CORE TO A TEMPERATURE AT WHICH THE MATERIAL FOR THE INSULATING LAYERS IS THERMOPLASTIC, ESTABLISHING ELECTROSTATIC FIELDS AT THE OPPOSITE FACES OF THE CORE, EXTRUDING THE MOLTEN INSULATING MATERIAL INTO SHEETS, AND SIMULTANEOUSLY PRESENTING THE SAME IN SAID ELECTROSTATIC FIELDS AND AT OPPOSITE FACES OF THE CORE WHEREBY ELECTROSTATIC CHARGES BECOME RESIDENT IN SAID SHEETS, WHEREWITH SAID SHEETS ARE MOVED BY THE CHARGES AND FIELDS INTO INTIMATE CONTACT WITH OPPOSITE FACES OF THE CORE, AND MAINTAINING THE CONTACTING SHEETS AND CORE AT A TEMPERATURE ABOVE THE FUSION BONDING TEMPERATURE OF THE LAYER MATERIAL UNTIL THE SHEETS AND CORE HAVE BONDED TOGETHER.
Claim 2
Independent Claim
154 words
A METHOD OF FORMINA A LAMINATED STRUCTURE HAVING AN ELECTRICALLY CONDUCTIVE CORE AND LAYERS OF THERMOPLASTIC INSULATING MATERIAL ADHERENT TO OPPOSITE FACES THEREOF, SAID INSULATING MATERIAL BEING CAPABLE OF ACQUIRING AND RETAINING A NON-CONDUCTIVE STATE WHEN IN A MOLTEN CONDITION AND CAPABLE OF FUSION BONDING TO THE CORE, WHICH COMPRISES PREHEATING THE CONDUCTIVE CORE TO A TEMPERATURE AT WHICH THE MATERIAL FOR THE INSULATING LAYERS IS THERMOPLASTIC, ESTABLISHING ELECTROSTATIC FIELDS AT THE OPPOSITE FACES OF THE CORE, EXTRUDING THE MOLTEN INSULATING MATERIAL INTO SHEETS, AND SIMULTANEOUSLY PRESENTING THE SAME IN SAID ELECTROSTATIC FIELDS AND AT OPPOSITE FACES OF THE CORE WHEREBY ELECTROSTATIC CHARGES BECOME RESIDENT IN SAID SHEETS, WHEREWITH SAID SHEETS ARE MOVED BY THE CHARGES AND FIELDS INTO INTIMATE CONTACT WITH OPPOSITE FACES OF THE CORE, AND MAINTAINING THE CONTACTING SHEETS AND CORE AT A TEMPERATURE ABOVE THE FUSION BONDING TEMPERATURE OF THE LAYER MATERIAL UNTIL THE SHEETS AND CORE HAVE BONDED TOGETHER.
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) | 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 |