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 Title: |
US5440361:
Method for flattening acetate-based films using steam
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Moortgat, Ronald A.; Chatsworth, CA
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| Assignee: |
The Walt Disney Company, Burbank, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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| Published / Filed: |
1995-08-08
/ 1993-09-03
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| Application Number: |
US1993000116728
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| IPC Code: |
Advanced:
G03C 11/06;
G03D 15/00;
G03C 11/00;
Core:
more...
IPC-7:
G03D 15/08;
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| ECLA Code: |
G03C11/06; G03D15/00;
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| U.S. Class: |
Current:
352/056;
396/579;
396/661;
Original:
352/056;
354/354;
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| Field of Search: |
360/134,131
428/692,694 R
156/389
352/056,244
354/354
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| Priority Number: |
| 1993-09-03 |
US1993000116728 |
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| Abstract: |
A method for treating acetate-based films, particularly those having a magnetic particle layer onto which a sound track has been recorded, so that information recorded on the film can be reproduced even when the film has been distorted by heat or humidity. The film is placed in a container where it contacts a sufficient amount of steam until the film absorbs sufficient moisture from the steam so that it softens and becomes sufficiently flat to provide good contact with a playback head. Preferably, the film contacts the steam for about 10 to about 20 seconds and, in particular, about 15 seconds.
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| Attorney, Agent or Firm: |
Pretty, Schroeder, Brueggemann & Clark ;
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| Primary / Asst. Examiners: |
Psitos, Aristotelis; Habermehl, James L.
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 22 claims |
What is claimed is:
1. A method for treating a physically distorted magnetic acetate-based film onto which a sound track has been recorded, comprising:
- placing the physically distorted film in a container and contacting the film with an effective amount of steam to soften the film so that the film becomes flatter.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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