Silo unloader system
CA 1069077 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 A silo unloader system of the bottom unloader type has a radially disposed auger mounted at the bottom of the silo for movement comprising a radial sweeping movement across the floor by a sweep drive, combined with rotation of the auger about its own axis by a rotational drive. Silage within the silo is engaged by advancing the auger into the silage and moving the silage toward a generally central silo discharge location by auger rotation. The improvement resides in the rotational drive comprising a pivotally mounted electric motor and a drive train connecting the motor and the auger at a substantially radial inner portion of the auger at about the geometric …
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 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 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.