Device for sealing a plastic container preform to a blow moulding nozzle, and container blow moulding machine provided therewith
CA 2194544 C · Owner: Sidel S.A. · Inventors: Chaure, Christophe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine for blow moulding or stretch-blow moulding a preform (5) in a mould (6) wherein a seal (20) is provided between the preform (5) and the blow moulding nozzle (1). Said seal is mounted on the nozzle (1) and can be placed in two positions i.e. a first position in which it is prevented from contacting the preform during the insertion of the nozzle into the preform and a second position in which it forms the seal therebetween. Members (18 21, 26, 27) are provided for moving the seal from the first to the second positions once the nozzle has been fully positioned within the preform. A machine provided with such a device for producing containers by blow moulding or stretch-blow moulding …
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 July 5, 1995 and granted October 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2017.
- 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.