Rotary vibrator
CA 2196152 A1 · Owner: Chaplin, James · Inventors: Heimbruch, Glenn; Chaplin, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vibrator for use in concrete or other semi-fluid or viscous material is provided with a casing having an open chamber therein, a cap detachably connected to the casing a cantilevered stub shaft extended into the chamber from the cap, a bearing on the stub shaft, and an eccentric weight mounted on the bearing for rotation about an axis and the stub shaft for generating vibrations.
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 January 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2019.
- 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.