Clean-in-place system for an ink jet printhead
CA 2294873 A1 · Owner: Murad, George · Inventors: Eremity, Frank; Murad, George; Arway, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A clean-in-place system is disclosed for use in an ink jet printhead (10). The clean-in-place system features a compartment (17) in which the printhead components (18a, 20, 22, 24) are disposed. An end plate (28) has a slot (26) therein to permit ink drops to be projected from the compartment (17) onto a substrate to be marked. For cleaning purposes a pneumatic shutter (42) is , disposed adjacent the slot (26) to seal it. Thereafter the compartment (17) , is flooded with ink solvent (107) by means of a pump (103) from a solvent reservoir. The solvent may be agitated by air or mechanical means. Thereafter a drain line (116, 117) is used to remove the solvent from the compartment (17) …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.