US4016812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cleaning ink from a printing apparatus
Assignee: Individual
•
Filing: 1975-06-13
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Granted: 1977-04-12
•
Expires: 1995-06-13
Abstract
Abstract A device for cleaning ink from rollers of a printing apparatus. A container of ink solvent is removably mounted to the printing apparatus. A continuous web extends from the container and against the inked roller(s) of the printing apparatus. The web extends into the container and is directed downwardly by additional rollers into the ink solvent. As the printing apparatus roller is rotated, ink is transferred from the roller onto the continuous web. The web is then engaged by two wiper assemblies and a brush assembly thereby cleansing the ink from the web and allowing the ink to be transferred from the web into the ink solvent.
Inventors
- 👤 David V. Lauk
- 👤 Lloyd W. Bills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:06
CPC Classifications
B; B41; B41L; B41L41/00; B41L41/04; B41F; B41F35/00; B41F35/04; B41P; B41P2235/00; B41P2235/10; B41P2235/20; B41P2235/23
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
318 words
A device for cleaning ink from rollers on a printing apparatus comprising: a container for holding ink solvent; a printing apparatus having said container mounted thereon, said printing apparatus includes a frame with at least three rollers of which two are adjacent transfer rollers and with the remaining, removeably mounted third roller normally engaged during printing with said transfer rollers and rotatably mounted to said frame immediately above and between said transfer rollers; mounting means on said container being operable to mount said container to said printing apparatus; a continuous ink transfer web extending around and having a first surface in contact with one of said three rollers, said web having a second surface opposite of said first surface with said second surface in contact with two of said three rollers, said web transferring ink from said three rollers to said first surface and said second surface of said web as said three rollers are rotated: roller means mounted on said container and in contact with said web being operable to direct said web into said ink solvent; and, wiping means mounted on said container and in contact with said first surface and said second surface of said web being operable to wipe ink solvent off said first surface and said second surface of said web; said wiping means includes a pair of brushes mounted to said container and within said ink solvent, said brushes are spaced apart with said web passing therebetween, said brushes are in contact with said first surface and said second surface of said web brushing ink from said web; said wiping means further includes a pair of elongated scraping members mounted to said container and located exteriorly of said ink solvent, said members are spaced apart with said web passing therebetween, said members are in contact with said first surface and said second surface of said web scraping liquid off of said web.
Claim 2
Independent Claim
318 words
A device for cleaning ink from rollers on a printing apparatus comprising: a container for holding ink solvent; a printing apparatus having said container mounted thereon, said printing apparatus includes a frame with at least three rollers of which two are adjacent transfer rollers and with the remaining, removeably mounted third roller normally engaged during printing with said transfer rollers and rotatably mounted to said frame immediately above and between said transfer rollers; mounting means on said container being operable to mount said container to said printing apparatus; a continuous ink transfer web extending around and having a first surface in contact with one of said three rollers, said web having a second surface opposite of said first surface with said second surface in contact with two of said three rollers, said web transferring ink from said three rollers to said first surface and said second surface of said web as said three rollers are rotated: roller means mounted on said container and in contact with said web being operable to direct said web into said ink solvent; and, wiping means mounted on said container and in contact with said first surface and said second surface of said web being operable to wipe ink solvent off said first surface and said second surface of said web; said wiping means includes a pair of brushes mounted to said container and within said ink solvent, said brushes are spaced apart with said web passing therebetween, said brushes are in contact with said first surface and said second surface of said web brushing ink from said web; said wiping means further includes a pair of elongated scraping members mounted to said container and located exteriorly of said ink solvent, said members are spaced apart with said web passing therebetween, said members are in contact with said first surface and said second surface of said web scraping liquid off of said web.
Claim 3
Dependent Claim
32 words
The device of claim 1 wherein: said first surface faces inwardly and is in contact with said third roller, said second surface faces outwardly and is in contact with said transfer rollers.
Claim 4
Dependent Claim
20 words
The device of claim 2 wherein: one of said brushes is spring-biased upwardly with another of said brushes gravity-biased downwardly.
Claim 5
Dependent Claim
33 words
The device of claim 2 wherein: one of said scraping members is gravity-biased downwardly with said wiping means including adjusting means operable to adjust the vertical position of another of said scraping members.
Claim 6
Dependent Claim
26 words
The device of claim 2 wherein: said wiping means further includes a fabric strip biased against said first surface and located externally of said ink solvent.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |