Self-cleaning screen assembly for radiator air inlets
CA 1139335 B · Owner: Friesen, Peter · Inventors: Friesen, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A casing is secured to the front of the radiator air intake of a tractor or the like and a cylindrical screen assembly is journalled for free rotation to the casing. A fan blade assembly is secured to the inner end of the cylindrical screen assembly so that air drawn through the radiator by the engine cooling fan, passes through the fan assembly of the screen assembly and rotates the screen assembly. A blanking plate is supported within the screen assembly which blanks off part of the screen as it passes thereby, so that no air passes into the screen assembly in this area. This releases chaff and the like normally held on the surface of the screen by suction. The fan blade assembly 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
- Granted May 6, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 6, 1997.
- 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.