Filter apparatus having secondary gas discharge system
CA 1192501 A · Owner: Allis-Chalmers Corporation · Inventors: Westlin, Karl L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter apparatus for removing particulates from a dirty gas stream having a secondary gas discharge system for drawing a predetermined portion of the dirty gas stream across the face of the filter panel provided in the apparatus to remove particulates from the face of the panel during reverse gas flushing operations and to promote a uniform flow of the gas stream through the filter media in the panels during filtering operations.
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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 August 27, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2002.
- 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.