Cooling device for glass container forming machine
CA 2074172 C · Owner: Ball-Foster Glass Container Co. L.L.C. · Inventors: Erb, Roger; Smith, Richard; Johnson, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air cooling mechanism for a machine for molding glass objects from molten glass. The mechanism comprises a mold, (14) including mold halves each having a plurality of air passages (20). A fixed plenum (22) includes a slot (24) for the passage of air from that plenum into the air passages of that mold half. Pivot means (26) are provided for pivoting the mold halves from a first position where the mold defines an article cavity to a second position , away from the article to be molded. In this second position, one end of the air passages are in registry with the slot to effect the transport of air from the plenum and through the air passages.
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 November 29, 1990 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2012.
- 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.