Silo unloader and apparatus therefor
CA 1045572 A · Owner: Weaver, Richard L. · Inventors: Weaver, Richard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure The present invention relates to an apparatus for driving a generally radial auger for a silo. The apparatus is comprised of a first fluid drive for driving the auger in an arcuate advance motion through an arc. A second fluid drive is provided for turning the radial auger about its own axis. The first and second fluid drives are connected so that fluid pressure build-up resulting from resistance to the turning of the auger about its own axis will discontinue the provision of driving fluid for driving the auger in its advance motion.
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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.