Method of and apparatus for blow molding plastic articles
CA 1048219 A · Owner: Owens-Illinois · Inventors: Uhlig, Albert R.; Krall, Thomas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of an apparatus for blow molding a plastic article by forming a parison into a blown pre-form and then blowing the pre-form into the final article. The final blow mold is fixed and the pre-form mold is, movable from a parison-forming location to a pre-form blowing location. An arcuately movable turret carries a plurality of blow tubes sequentially registerable with the pre-form blowing location and the final blow mold location these tubes are utilized for the blowing operation and also transfer the preform to the final mold location. The turret thus traverses the two blowing locations, but not the parison-forming location. The turret may also traverse additional thermal …
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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
- Granted February 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 1996.
- 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.