Quadruple cavity glass mold operating apparatus
CA 1215840 A · Owner: Owens-Illinois, Inc. · Inventors: Irwin, George W.; Mumford, Eustace H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosed apparatus is a quadruple gob glass parison forming machine. Its distinguishing features are the mounting of the mold carrying inserts in the mold arms so that equal closing forces will be applied to all the molds,and that the mold arms are formed with extensions so that a conventional mold closing motor can be coupled to the arms and the closing force will be greater by at least 25%. The four molds are opened and closed within the space that has normally been considered cramped, even when three molds were being used.
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 December 30, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 2003.
- 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.