Adaptable packaging machine heat shrink tunnel
CA 2436202 A1 · Owner: Neagle, Claude Andrew · Inventors: Neagle, Claude Andrew; Marti, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shrink tunnel (100) for use with packaging machines utilizing heat shrinkable film (17). Air plenums (158 160, 162, 164) positioned in the , shrink tunnel (100) accurately direct heat at laterally opposed ends (188 190, 198, 200, 202, 204, 206, 208, 212 214, 218, 220) of film wrapped , packages (192 194, 196, 210, 216, 222) to shrink film into a bullseye (19). The air plenums (158, 160, 162, 164) are adjustable to accommodate different size packages or a differing number of lanes of operation. Interior air plenums (160, 162) are inserted between packages in lanes of a multiple lane packaging machine so that the laterally opposed ends of all packages have hot air directed at them.
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 October 31, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 31, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2023.
- 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.