Label disposal filter
CA 1206423 A · Owner: Vamvakas, Michael · Inventors: Vamvakas, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for separating loose p per pieces from a bath of caustic soda including a tank with a hopper-like structure disposed at the top of the tank. A helical screw conveyor is operatively disposed below the hopper and has its discharge exteriorly of the tank. A pair of perforated stainless steel screen-type spaced rotatable drums is operatively disposed between the hopper and the conveyor and a hollow, stainless steel screen-type cylindrical filter (with a nylon filter cover) is positioned in the bottom of the tank and has an outlet extending to the tank exterior. In operation a, caustic soda solution mixed with paper pieces in the hopper is discharged by gravity onto the rotating …
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 24, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 2003.
- 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.