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Class Information
Number: 400/202.1
Name: Typewriting machines > Including interposed inking device (e.g., ribbon) for record-medium > Renovation of used ribbon > Renovator attachable to typewriter for replenishing ribbon ink > Attached to ribbon spool
Description: Subject matter wherein the ribbon* is wound in convolutions on a reel, which is mounted on the typewriter, and the device for adding ink* is mounted in or on said reel.

Patents under this class:

Patent Number Title Of Patent Date Issued
7350992 Center-justifying spindle assembly Apr. 1, 2008
5466073 Printer ribbon cartridge with re-inking reservoir and pump Nov. 14, 1995
5230575 Segmented ink reservoir Jul. 27, 1993
5137382 Inking device for a thermal printer Aug. 11, 1992
5059045 Ribbon cartridge having hybrid ink re-inking Oct. 22, 1991
4701062 Printing ribbon spool Oct. 20, 1987
4639153 Printing ribbon spool having an ink reservoir and method of making same Jan. 27, 1987
4465388 Ink ribbon cartridge pinch roller Aug. 14, 1984
4340313 Business machine printing ribbon spool apparatus and method of inking the type slug impact portion of printing ribbons Jul. 20, 1982
4115012 Printing ribbon spool Sep. 19, 1978
4037709 Ribbon spool with built-in bifacial re-inker Jul. 26, 1977
3951253 Typewriter ribbon re-inker Apr. 20, 1976

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