US3360029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame treating burner device
Assignee: EIDP Inc
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Filing: 1965-09-29
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Granted: 1967-12-26
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Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Thompson Gordon Welton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:28
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/48; F23D14/58; F23D14/583; B; B29; B29C; B29C59/00; B29C59/08; F23D99/00; F23D99/002; F23D99/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN AN APPARATUS FOR FLAME TREATING THE SURFACES OF PLASTIC FILMS COMPRISING A ROTATABLY MOUNTED ROLLER ADAPTED TO CONVEY SAID FILM AND TO CONTAIN A FLUID MEDIUM FOR REGULATING THE SURFACE TEMPERATURE OF THE ROLLER; MEANS FOR IMPINGING A FLAME ON THE EXPOSED SURFACE OF SAID CONVEYED FILM COMPRISING A BURNER ADAPTED FOR COMMUNICATION WITH A SUPPLY OF COMBUSTIBLE GASEOUS FUEL AND HAVING A NARROW ELONGATED ORIFICE PASSAGE TERMINATING IN A FUEL DISCHARGE OPENING, THE IMPROVEMENT COMPRISING A FORAMINOUS GRID WITHIN SAID ORIFICE PASSAGE, SAID FORAMINOUS GRID BEING CONVEX TOWARDS SAID DISCHARGE OPENING SO THAT THE CENTER THEREOF IS CLOSER TO SAID DISCHARGE OPENING THAN THE EDGES THEREOF.
Claim 2
Dependent Claim
108 words
IN AN APPARATUS FOR FLAME TREATING THE SURFACES OF PLASTIC FILMS COMPRISING A ROTATABLY MOUNTED ROLLER ADAPTED TO CONVEY SAID FILM AND TO CONTAIN A FLUID MEDIUM FOR REGULATING THE SURFACE TEMPERATURE OF THE ROLLER; MEANS FOR IMPINGING A FLAME ON THE EXPOSED SURFACE OF SAID CONVEYED FILM COMPRISING A BURNER ADAPTED FOR COMMUNICATION WITH A SUPPLY OF COMBUSTIBLE GASEOUS FUEL AND HAVING A NARROW ELONGATED ORIFICE PASSAGE TERMINATING IN A FUEL DISCHARGE OPENING, THE IMPROVEMENT COMPRISING A FORAMINOUS GRID WITHIN SAID ORIFICE PASSAGE, SAID FORAMINOUS GRID BEING CONVEX TOWARDS SAID DISCHARGE OPENING SO THAT THE CENTER THEREOF IS CLOSER TO SAID DISCHARGE OPENING THAN THE EDGES THEREOF.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |