Bulk bag unloading station
CA 1292717 C · Owner: Vac-U-Max · Inventors: Pendleton, Stevens P.; Worsfold, Herbert Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bulk bag unloading station having a frame from which a bag containing powdery, granular or fibrous material and having a bottom spout, may be suspended; a base plate with an opening; and a mechanism above the base plate for intermittently shaking a bottom portion of the bag to aid the flow of material from the spout. The mechanism has a number of liftable petals actuated pneumatically.
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 December 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 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.