Filter assembly with sealed, magnetically coupled cleaning head actuator
CA 2536575 C · Owner: Eaton Lp · Inventors: Imanse, Craig Lee; Sayles, Samuel Clay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter assembly for removing filtrate from industrial process streams. The assembly includes a housing in which a filter element is disposed. The filter element has a surface against which the filtrate is trapped. A cleaning head to which cleaning blades are attached is disposed in the housing and removes the trapped filtrate. An actuator tube extends through the housing. Internal to the actuator tube is a first magnet. Pressurized gas is selectively applied to the ends of the actuator tube to move the first magnet in the tube. A second magnet is attached to the cleaning head. The second magnet is magnetically coupled to the first magnet so the second magnet moves with the first …
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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
- Filed September 1, 2004 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2026.
- 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.