Engine air intake screen assembly
CA 2128394 C · Owner: Kohler Co. · Inventors: Bakke, Daniel L.; Dins, Michael J.; Liegeois, David D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An engine air intake screen assembly having a rotating screen is provided. A blade is positioned directly under the screen to scrape accumulated debris off the inside surface of the rotating screen and to also, chop debris flowing through the screen. The screen covers an opening in a blower housing and rotates when the engine is running. In one form a set, screw allows the clearance distance between the blade and the inside surface of the rotating screen to be adjusted.
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 20, 1994 and granted June 8, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 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.