Material mixer
CA 1289134 C · Owner: Van Dale, Inc. · Inventors: Buschbom, Floyd E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A particulate material mixer has a rotatable drum with an inclined longitudinal axis. A conveyor having an open top trough and auger is located longitudinally in the drum and operates to move mixed material from the drum chamber into a hopper or alternatively back into the chamber. A drive transmission simultaneously rotates the drum and operates the conveyor. A flexible circular seal interposed between an annular end wall and a circular wall of the drum prevents material from spilling out of the drum. The conveyor trough is mounted for angular movement to regulate the volume of material discharged from the mixer. A manually operated liner actuator allows the operator to select the angular …
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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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- 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.