Refillable typewriter ribbon cartridge

Details Refillable typewriter ribbon cartridge Refillable typewriter ribbon cartridge

1980-07-21

1983-01-11

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400207, 400694, 242197, 242199, B41J 3314

Patent

active

043679633

ABSTRACT:
A protective carton-enclosed typewriter ribbon pancake assembly and associated cartridge frame having a biased-open top are disclosed. The pancake assembly includes a typewriter ribbon pancake spirally wrapped around a supply hub. The ribbon and supply hub are enclosed by a protective paper carton configured for insertion within the cartridge frame. The carton has holes through which the ends of the supply hub pass. The free end of the ribbon is attached to a take-up hub. A used ribbon pancake assembly is disposed of by merely releasing the biased top of the frame so that the used ribbon, protective carton and hubs free fall into an underlying waste receptacle. The carton is shaped to insure proper alignment of the pancake assembly within the cartridge.

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