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Title: US5197644: Film cabinet with roller attachment and film transfer mechanisms
[ Derwent Title ]

Country: US United States of America

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15 pages

Inventor: Gillett, Jack J.; Canoga Park, CA
Outten, John A.; St. Cloud, FL

Assignee: The Walt Disney Company, Burbank, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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Published / Filed: 1993-03-30 / 1991-02-05

Application Number: US1991000652300

IPC Code: Advanced: B65H 20/34; G03B 21/32;
Core: B65H 20/30; more...
IPC-7: B65H 75/00;

U.S. Class: Current: 226/118.3; 226/011; 226/189; 312/009.1;
Original: 226/118; 226/189; 226/199; 312/209.1;

Field of Search: 226/118,119,189,195,196,43,44,199 242/55.01,205 134/64 R 312/020,41 403/328,327,325,354

Priority Number:
1990-11-30  US1990000622384
1988-11-29  US1988000277340

Abstract: A film cabinet for storing and moving a continuous loop of film. The cabinet includes parallel rows of free-spinning rollers connected to the floor and ceiling of the cabinet, and a row of drive sprockets adjacent to the ceiling having teeth for engaging the perforated edges of the film. The film is moved throughout the cabinet around the free-spinning rollers by rotation of the single row of drive sprockets. The film also may be wound around at least one tension roller having a mercury activated switch adapted to disconnect power to the drive sprockets upon film breakage inside the cabinet. Transfer of the film between the cabinet and projector is accomplished by a directionally adjustable film transfer mechanism that ensures proper bending and twisting of the film during this transfer. Other aspects include a quick connect-disconnect roller attachment mechanism, and film guides located in the cabinet to prevent sagging of the film as it traverses, for example, the floor and ceiling of the cabinet.

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

Primary / Asst. Examiners: Stodola, Daniel P.; Bowen, Paul

Maintenance Status: CC Certificate of Correction issued

INPADOC Legal Status: Show legal status actions

Related Applications:
Application Number Filed Patent Pub. Date  Title
US1990000622384 1990-11-30       
US1988000277340 1988-11-29       

Parent Case:     This application is a division of application Ser. No. 622,384 filed Nov. 30, 1990, which is a continuation of application Ser. No. 277,340 filed Nov. 29, 1988, both of which are now abandoned.

Family: None

First Claim:
Show all 12 claims
We claim:     1. A film cabinet, comprising:
  • (a) a cabinet housing having a floor, a ceiling and sidewalls extending substantially from the floor to the ceiling;
  • (b) a plurality of rollers connected to the housing for transporting film through the cabinet;
  • (c) drive means for engaging the film and moving it through the cabinet around the rollers;
  • (d) tension means for applying tension to the film; and
  • (e) roller attachment means for attaching the rollers to the cabinet housing, the roller attachment means comprising:
    • an arm having one end rotatably connected to the roller and a free end having a narrow slotted entrance leading to an enlarged notch positioned inwardly from the free end;
    • a housing having a base for connection to the cabinet, and a channel adapted to slidably receive the free end of the arm and prevent pivoting of the arm with respect to the housing; and
    • a pin slidably receivable within a bore of the housing having a narrow outer portion adapted to fit within the slotted entrance of the free end and an enlarged inner portion adapted to fit within the notch of the free end, the pin being movable in the bore transversely into the channel from a normal portion in which the enlarged inner portion is within the channel to a retracted position in which only the narrow outer portion is within the channel.

Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 1 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (1)   |   Backward references (13)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 5pp US939350  1909-11 Thompson   FILM-DRYING MACHINE.
Get PDF - 4pp US1654723* 1928-01 Ybarrondo    
Get PDF - 3pp US2133109* 1938-10 Munson    
Get PDF - 4pp US3049309* 1962-08 Miller    
Get PDF - 21pp US3680803  1972-08 Takata  Artisan Industries Inc. TURBINE DRIVE FOR PHOTOGRAPHIC FILM PROCESSING MACHINES
Get PDF - 5pp US3747863  1973-07 Klementz et al.  Akzona Incorporated ADJUSTABLE THREAD DRAWOFF APPARATUS
Get PDF - 13pp US3949655  1976-04 Gold  United States Box Corporation Synchronization apparatus for box making machine
Get PDF - 8pp US4141480  1979-02 Calzini  O.M.A.C. Caprara S.a.s. Friction film driving device for developing machine
Get PDF - 11pp US4215827  1980-08 Roberts et al.   Film loop apparatus
Get PDF - 6pp US4367020  1983-01 Vowles  Corporation of the President of The Church of Jesus Christ of Latter-Day Saints Projection device and loop box therefor
Get PDF - 7pp US4389135  1983-06 Peters   Releasable locking device
Get PDF - 4pp US4913610  1990-04 Olivieri  Icaro Olivieri & C. S.p.A. Minuterie Metalliche Device for preventing a wheel from slipping off a spindle on which it is mounted in a freely rotatable manner
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Foreign References: None

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