Anilox coater with brush
CA 2102157 C · Owner: Demoore, Howard W. · Inventors: Person, Steven M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Air bubbles entrapped within the cells (72) of an engraved applicator roller (58) are displaced from the cells by wiping the engraved surface (60) of applicator roller with the bristles of a brush (106). As the engraved applicator roller (58) rotates in contact with the liquid coating material in the doctor blade reservoir (82) the, bristles of the brush (106) puncture the entrapped air bubbles and sweep the entrapped air away from the cells. the elongated brush (106) which extends from one end of, the doctor blade head (88) to the other blocks the, transfer of dispersed air bubbles from the liquid material in the upper reservoir chamber (102B) above the brush to the lower reservoir chamber …
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 November 1, 1993 and granted March 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2015.
- 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.