Device for the preparation of used metal barrels with a view to facilitating handling and recycling thereof
CA 2125896 C · Owner: Vasseur, Jean-Claude · Inventors: Vasseur, Jean-Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device embodying the invention uses a hydraulic press activating a mobile plate in a chamber opposite a base on which a metal barrel can be disposed, and successively comprises: the placing and maintaining of the barrel on the base; the perforating of two opposite sides of the barrel by means of an elongated perforating mechanism running through the barrel from side to side and from top to bottom; the cleaning of the interior of the barrel by projection of a cleansing fluid under pressure by means of a rotary injection head integral with the perforating mechanism; and the crushing of the barrel by displacement of the plate towards the base. The invention notably concerns the processing …
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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
- Filed June 15, 1994 and granted September 30, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2016.
- 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.