Shaping of dies
CA 1295446 C · Owner: Bryan, Teresa H. · Inventors: Bryan, Teresa H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
From the mold cross section and the position of the parison in the mold that parison wall thickness distribution (function of the wall thickness of the parison around the parison) is computed which would, result in the desired wall thickness distribution of the blow molded article; the die gap is then shaped to at least approximate the so computed parison wall thickness distribution.
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
- Granted February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
- 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.