Walk-behind mower reverse belt tensioner
CA 2180471 C · Owner: Hardesty, Terry Dean · Inventors: Hardesty, Terry Dean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A belt drive tensioning device for a walk-behind mower having a power source, a transmission and shiftable between forward neutral and reverse , modes, right and left drive pulley's driven by the transmission right and left drive , belts driven, by the drive pulleys right and left ground engaging wheels driven by the drive belts, right and left idler pulleys shiftable into engagement against the drive belts for, selectively placing drive tension in the drive belts right and left biasing , means for, applying a force to the idler pulleys to bias the idler pulleys into engagement with the, drive belts and place drive tension in said drive belts right and left rods , operatively, coupled …
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 July 3, 1996 and granted September 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2018.
- 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.