Spring-bag printer ink cartridge with volume indicator

Details Spring-bag printer ink cartridge with volume indicator Spring-bag printer ink cartridge with volume indicator

1991-06-19

1994-10-25

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

73290R, 116227, 116281, 222 23, B41J 217

Patent

active

053593537

ABSTRACT:
An ink jet pen supply cartridge having a spring biased ink bag with a visual indication of remaining ink quantity. The spring-bag reservoir tends to collapse laterally as the ink supply decreases due to differential pressure exerted thereto. The spring-bag is contained in a rigid cartridge and a pair of flexible tape members are cemented or welded, one to each side of the spring-bag, and extend generally parallel toward a narrow end surface of the cartridge at which they overlap and can be viewed through a window. The overlapping relationship of the tape members provide ink quantity indicia which change as the spring-bag collapse draws them past each other.

REFERENCES:
patent: 4016885 (1977-04-01), Bruner
patent: 4196625 (1980-04-01), Kern
patent: 4202267 (1980-05-01), Heinzl et al.
patent: 4371790 (1983-02-01), Manning et al.
patent: 4415886 (1983-11-01), Kyogoku et al.
patent: 4422084 (1983-12-01), Saito
patent: 4447820 (1984-05-01), Terasawa
patent: 4587535 (1986-05-01), Watanabe
patent: 4626874 (1986-12-01), Murai et al.
patent: 4719475 (1988-01-01), Kiyohara et al.
patent: 4935751 (1990-06-01), Hamlin
patent: 5079570 (1992-01-01), Mohr et al.
patent: 5152427 (1992-10-01), Pope et al.
patent: 5280300 (1994-01-01), Fong et al.

Affiliated with

Also associated with

Rating

Spring-bag printer ink cartridge with volume indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spring-bag printer ink cartridge with volume indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring-bag printer ink cartridge with volume indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-138407