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Title: US5440361: Method for flattening acetate-based films using steam
[ Derwent Title ]


Country: US United States of America

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6 pages

 
Inventor: Moortgat, Ronald A.; Chatsworth, CA

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

Application Number: US1993000116728

IPC Code: Advanced: G03C 11/06; G03D 15/00; G03C 11/00;
IPC-7: G03D 15/08;

ECLA Code: G03C11/06; G03D15/00; S03C11/00;

U.S. Class: Current: 352/056; 396/579; 396/661;
Original: 352/056; 354/354;

Field of Search: 360/134,131 428/692,694 R 156/389 352/056,244 354/354

Priority Number:
1993-09-03  US1993000116728

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.

Attorney, Agent or Firm: Pretty, Schroeder, Brueggemann & Clark ;

Primary / Asst. Examiners: Psitos, Aristotelis; Habermehl, James L.

Maintenance Status: E3 Expired  Check current status

INPADOC Legal Status: Show legal status actions

Family: None

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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U.S. References: Go to Result Set: All U.S. references   |  No patents reference this one   |   Backward references (11)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 5pp US1543301  1925-06 Stock   Method of regenerating worn cinematographic films
Get PDF - 3pp US1783895  1930-12 Wright   Method of restoring shrunken films
Get PDF - 7pp US2011576  1935-08 Gage   Method of processing motion picture films
Get PDF - 9pp US2275139  1942-03 Gage   Method of treating motion picture films
Get PDF - 2pp US2782697  1957-02 Krupa   Film processing
Get PDF - 3pp US3687710  1972-08 Bunchez   METHOD FOR TREATING PHOTOGRAPHIC FILM
Get PDF - 7pp US3967025  1976-06 Tanabe et al.  Teijin Limited Magnetic recording material
Get PDF - 24pp US4109287  1978-08 Kawai et al.  Pilot Man-Nun-Hitsu Kabushiki Kaisha Process for recording information or sound and process for preparation of recording materials used therefor
Get PDF - 9pp US4274731  1981-06 Carter et al.  Carter Equipment Co., Inc. Total immersion continuous loop apparatus and method
Get PDF - 3pp US4370408  1983-01 Kiening   Method for repairing surface defects in an image or picture film
Get PDF - 7pp US4535224  1985-08 Westman, Jr.  RCA Corporation Apparatus for use in trimming of molded records
       
Foreign References:
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Publication Date IPC Code Assignee   Title
  JP58055221 1983-04       
  JP61113134 1986-05       
  JP05124099 1993-05       


Other Abstract Info: DERABS C95-283308 DERC95-283308

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