Dust collector
CA 1294566 C · Owner: Kanda, Kinzo · Inventors: Kanda, Kinzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cyclone dust collector is comprised the lower dust chamber (5) having an air inlet (10) and the upper dust chamber (4) communicated a suction means. A communicating duct (2) is installed in the dividing plate (3) in such a manner to extend downward into the lower dust chamber (5) and a cyclone drum (15) is supported in such a manner to enclose the duct (2). A disk (17) is supported to vertically divide the inside of the drum (15) into a pair of upper and lower parts. The air introduced into the lower dust chamber (5) is caused to flow in a swirl in the cyclone drum (15), the dust particles in the air are separated by centrifugalization to be allowed to drop along the inside wall of the …
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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.