Electro-pneumatic control system for valve bag filling apparatus
CA 1203214 A · Owner: Champion International Corporation · Inventors: Kelley, Roy N.; Lepisto, J. George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system for use in a valve bay filling apparatus eliminates sifting of product during the filling process. A filling nozzle is inserted into the valve of a bag to be filled. A flow of particulate material a 1 i s provided through the filling nozzle and into the bag. When the bag is full, the flow of particulate material is terminated. A blast of high pressure air is then introduced into the nozzle in order to clear the nozzle of any residual particulate material therein. A low pressure blast of air is introduced between the nozzle and the filling valve to suspend any particles present in the filling valve after the nozzle has been cleared by the high pressure blast. A vacuum is …
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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 April 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 2003.
- 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.