Ink catcher and drop charge sensing device
CA 1270146 C · Owner: Eremity, Frank · Inventors: Eremity, Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is an ink drop catcher for use in a drop marking device such as an ink jet printer. The catcher receives drops which are not to be deposited on the recording medium. The catcher includes a labyrinth passage through which the drops pass to return to the ink supply. An electrode disposed along the labyrinth passage senses the current flow created by the accumulation of the charges from a series of test drops. This current flow is used by phasing circuitry to insure that the drops are correctly charged at the time they are formed.
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
- Granted June 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
- 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.