System for applying a heat shrinkable sleeve to a container
CA 2083230 A1 · Owner: Mcneil-Ppc-Inc. · Inventors: Sowden, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for applying a heat-shrinkable sleeve or label to a container such as a vial for pharmaceuticals includes a novel heat tunnel assembly. The heat tunnel assembly, in a preferred embodiment, includes a conveyor for moving the sleeved containers past a heat source. The container has a plurality of rollers upon which the sleeved containers are supported and rotated. The rollers turn at a first rate during initial shrinkage of the sleeve and at, a second, slower, rate after the initial shrinkage has occurred to reduce distortion and unwanted displacement of the label during its application. The heat tunnel assembly also includes a system for withdrawing the heat source from the vicinity …
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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 November 18, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2014.
- 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.