US3254427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film treating apparatus
Assignee: Oscar Mayer Foods Corp
•
Filing: 1962-07-23
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Granted: 1966-06-07
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Expires: 1982-07-23
Abstract
No abstract record available.
Inventors
- 👤 Robert O Dorr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:17
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/04; B29C35/06; B29B; B29B13/00; B29B13/02; B29B13/023; B29C35/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN APPARATUS FOR TREATING A CONTINUOUS PLASTIC FILM WHICH IS CHARACTERIZED BY CHANGES IN LENGTH WHEN SOFTENED BY HEAT AND TENSIONED, SAID APPARATUS COMPRISING A CABINET HAVING A BODY PORTION AND A DOOR CONSTITUTING ONE SIDE OF THE CABINET WHICH, WHEN CLOSED, FORMS WITH THE BODY A HEAT TUNNEL WITH ELONGATE SLOTS IN OPPOSITELY DISPOSED CABINET WALLS TO PERMIT PASSAGE OF THE FILM THROUGH THE TUNNEL, SAID CABINET HAVING ITS WALLS LINED WITH HEAT INSULATING MATERIAL, MEANS FORMING DUCTS IN THE CABINET HAVING APERTURED WALL PORTIONS DISPOSED ON OPPOSITE SIDES OF THE PATH OF THE FILM, AN AIR HEATER AND A FAN CONNECTED TO THE CABINET FOR SUPPLYING HOT AIR TO THE DUCTS AND TO CIRCULATE THE HOT AIR ALONG OPPOSITE FACES OF A FILM FED THROUGH THE TUNNEL, AND MEANS FOR AUTOMATICALY CONTROLLING THE OPERATION OF THE HEATER AND FAN SO AS TO CONTROL THE TEMPERATURE OF THE HOT AIR IN THE TUNNEL.
Claim 2
Independent Claim
154 words
AN APPARATUS FOR TREATING A CONTINUOUS PLASTIC FILM WHICH IS CHARACTERIZED BY CHANGES IN LENGTH WHEN SOFTENED BY HEAT AND TENSIONED, SAID APPARATUS COMPRISING A CABINET HAVING A BODY PORTION AND A DOOR CONSTITUTING ONE SIDE OF THE CABINET WHICH, WHEN CLOSED, FORMS WITH THE BODY A HEAT TUNNEL WITH ELONGATE SLOTS IN OPPOSITELY DISPOSED CABINET WALLS TO PERMIT PASSAGE OF THE FILM THROUGH THE TUNNEL, SAID CABINET HAVING ITS WALLS LINED WITH HEAT INSULATING MATERIAL, MEANS FORMING DUCTS IN THE CABINET HAVING APERTURED WALL PORTIONS DISPOSED ON OPPOSITE SIDES OF THE PATH OF THE FILM, AN AIR HEATER AND A FAN CONNECTED TO THE CABINET FOR SUPPLYING HOT AIR TO THE DUCTS AND TO CIRCULATE THE HOT AIR ALONG OPPOSITE FACES OF A FILM FED THROUGH THE TUNNEL, AND MEANS FOR AUTOMATICALY CONTROLLING THE OPERATION OF THE HEATER AND FAN SO AS TO CONTROL THE TEMPERATURE OF THE HOT AIR IN THE TUNNEL.
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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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |