Printing ribbon spool

Details Printing ribbon spool Printing ribbon spool

1977-01-10

1978-09-19

Sewell, Paul T.

Typewriting machines

Including interposed inking device for record-medium

Renovation of used ribbon

400242, B41J 3116

Patent

active

041150120

ABSTRACT:
A printing ribbon spool is disclosed for maintaining the print-out density or consistency of a printing ribbon by contact between a woven or knitted pad on the spool and a side edge of the ribbon. Ink is communicated to the pad from a sealed reservoir by way of a woven or knitted fabric which communicates with the reservoir through a hole substantially smaller in diameter than the transverse width of the wick in its normal condition.

REFERENCES:
patent: 2969865 (1961-01-01), Long
patent: 3003461 (1961-10-01), Rosenthal
patent: 3097597 (1963-07-01), Visser
patent: 3460665 (1969-08-01), Dodsworth et al.
patent: 3819026 (1974-06-01), Ploeger, Jr. et al.
patent: 3943540 (1976-03-01), Van der Heyden

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