Vacuum return system for ink jet printing apparatus
CA 1056899 A · Owner: A.B. Dick Company · Inventors: Eremity, Frank; Arway, George W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum return ink system for an ink jet printing apparatus includes an ink/air separator comprising a housing having a chamber formed therein. A first inlet port of relatively large diameter connect the chamber via a short tube of similar diameter to the ink catcher of the printing apparatus used for accumulating unused ink. A second port of relatively large diameter is provided to connect the chamber via a tube of a similar diameter to a vacuum source. A third port of relatively small diameter is provided to connect the chamber via a tube of similar diameter to an evacuated ink return tank. A tubular section defining the third port is inserted into the housing with the end thereof …
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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
- Granted June 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
- 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.