End of ribbon indicator for a cassette

Details End of ribbon indicator for a cassette End of ribbon indicator for a cassette

1997-04-14

1998-09-15

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Means auxiliary to ribbon mechanism

400703, 242344, 116284, B41J 3332

Patent

active

058070010

ABSTRACT:
A cassette with an end of ribbon indicator or mark in accordance with the present invention includes a spool for storing the useable ribbon, a pair of end hubs, and at least one end of ribbon mark. One of the end hubs is connected to each end of the spool. Each of the end hubs has an inner surface facing the spool which includes the end of ribbon mark. The mark indicates how much usable ribbon is left on the spool. Preferably, the marks comprise a plurality of concentric rings centered around an axis extending along the length of the center of the spool.

REFERENCES:
patent: 879159 (1908-02-01), Fox
patent: 2937818 (1960-05-01), Zorn
patent: 3718290 (1973-02-01), Wright
patent: 3894507 (1975-07-01), Joechlin
patent: 3913200 (1975-10-01), Kossor
patent: 4479730 (1984-10-01), Yoshioka et al.
patent: 5370332 (1994-12-01), Goff et al.
patent: 5492422 (1996-02-01), Kondo

Affiliated with

Also associated with

Rating

End of ribbon indicator for a cassette does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with End of ribbon indicator for a cassette, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and End of ribbon indicator for a cassette will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-80764