Coolant introduction in blow molding
CA 1323971 C · Owner: Maric, Robert R. · Inventors: Wood, J. Robbin; Maric, Robert R.; Hazell, Jack E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A more efficient cooling of a blow molded thermoplastic article can be achieved by directing sprays of cooling medium against those specific zones of the wall of the article which require a more rapid cooling while avoiding directing the sprays at areas requiring a less rapid cooling. This cooling procedure is achieved using a spray head having a plurality of individual spray nozzles which direct sprays specifically against the areas requiring more rapid cooling.
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 November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
- 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.