Motorized pulley
CA 2117165 C · Owner: Werner, Hans · Inventors: Werner, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A motorized conveyor roller comprising: a mechanism for rotatably mounting a roller tube in a conveyor frame the roller tube having a length, an, inner diameter and a hollow interior the roller tube having disposed within thehollow interior a motor and a gear reducer also mounted inside the roller tube operatively connected to the motor, said gear reducer including an output; a drive member being driven by the gear reducer output to drive said roller a, lubricant contained within the hollow interior for lubricating and cooling the motor, the gear reducer, the gear reducer output and the inner diameter of the, roller tube the roller tube having a device for ensuring that the lubricant is …
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 March 7, 1994 and granted March 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2016.
- 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.