Automatic belt tensioner
CA 2552964 C · Owner: Fischer, Michael · Inventors: Guhr, Wolfgang; Fischer, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to , an automatic belt tensioner comprising a basic part that is connected to a , tensioning part so as to be rotatable about a common axis of rotation, a , helical spring that is joined to the basic part and the tensioning part, and a , wrapping bush which is wrapped at least in some areas with a radial enveloping force by means of the helical spring. According to the invention, the material of the wrapping bush contains reinforced plastic in order to ensure that the belt tensioner provides good damping and , good cushioning properties if possible during the entire service life thereof while being universally usable and , having a simple design.
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 October 5, 2004 and granted August 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2026.
- 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.