Apparatus for emptying containers
CA 1280083 C · Owner: Von Bennigsen-Mackiewicz, Christoph · Inventors: Von Bennigsen-Mackiewicz, Andreas; Von Bennigsen-Mackiewicz, Christoph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for emptying containers with flexible discharge connections for bulk materials the said discharge, connections being adapted to be closed by a tying means and each of the discharge connections opening into the emptying apparatus from which the bulk material is removed. The emptying apparatus consists of a vertical cylindrical housing the outside diameter of which is smaller than the inside diameter of the discharge connection which in the connected, condition, engages over the said housing. At least two jaws being provided to engage around the outside of the housing. In the closed position the jaws are spaced from the wall of, the said housing. At least one resilient band is …
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 February 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 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.