Plastics processing machine, and method for rapidly switching over from production of one product to another
CA 2069007 A1 · Owner: Wurzer, Ernst · Inventors: Wurzer, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For a plastics processing machine in particular a blow, moulding machine to reduce machine stop and production 1088 times, a process and corresponding constructional measures are proposed for the rapid change-over from a first product mould, e.g. a 220-litre vessel, to a second product mould e.g. a 60-litre canister. In accordance with the process this is achieved in, that the mould halves (12 14) of the first product mould, remain on the mould clamping plates (16 18), and the mould, halves (22, 24) of the second product mould are clamped onto the remaining mould halves (12, 14) of the first product mould.
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
- Filed June 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2013.
- 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.