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 Title: |
US5197644:
Film cabinet with roller attachment and film transfer mechanisms
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Gillett, Jack J.; Canoga Park, CA
Outten, John A.; St. Cloud, FL
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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: |
1993-03-30
/ 1991-02-05
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| Application Number: |
US1991000652300
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| IPC Code: |
Advanced:
B65H 20/34;
G03B 21/32;
Core:
B65H 20/30;
more...
IPC-7:
B65H 75/00;
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| U.S. Class: |
Current:
226/118.3;
226/011;
226/189;
312/009.1;
Original:
226/118;
226/189;
226/199;
312/209.1;
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| 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
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| Priority Number: |
| 1990-11-30 |
US1990000622384 |
| 1988-11-29 |
US1988000277340 |
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| 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.
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| Attorney, Agent or Firm: |
Pretty, Schroeder, Brueggemann & Clark ;
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| Primary / Asst. Examiners: |
Stodola, Daniel P.; Bowen, Paul
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| Maintenance Status: |
CC Certificate of Correction issued
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| INPADOC Legal Status: |
Show legal status actions
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| Related Applications: |
| Application Number |
Filed |
Patent |
Pub. Date |
Title |
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| US1990000622384 | 1990-11-30 |
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| US1988000277340 | 1988-11-29 |
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| 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.
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| Family: |
None
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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.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 1 U.S. patent(s) that reference this one
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