Pulsating vibration air generation means
CA 2356676 A1 · Owner: Yoshimoto, Hirokazu · Inventors: Iwase, Yuji; Morimoto, Kiyoshi; Yoshimoto, Hirokazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas oscillatory wave generator for generating gas oscillatory waves used, e.g. for pneumatic conveyance of powder material or for imparting vibrations to a member. The generator comprises a casing (2) a drum-shaped rotary valve , disc (3) rotatably received in the casing the rotary valve disc (3) being , rotated in the casing (2) wherein when a ventilating window (W) formed in the peripheral surface (S3) of the rotary valve disc (3) comes to a position where it is aligned with an air inlet (h2) formed in the peripheral surface of the casing (2), the compressed air that is being fed into the air inlet (h2) is taken into the drum-shaped rotary valve disc through the venting window (W) …
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 December 24, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 24, 2021.
- 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.