Method and apparatus for forming glass containers
CA 2361890 A1 · Owner: Difrank, Frank J. · Inventors: Difrank, Frank J.; Leidy, D. Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A glass container forming machine section (10) in which the mold carrying arms (12, 14) that are pivoted on shafts (20 22), respectively, about a common, axis (A) are caused to counteroscillate between open positions in which the mold, halves (16, 18) that are respectively caned by the arms (12 14) are , separated, and, closed positions in which the mold halves are joined to define molding cavities, therebetween. The opening and closing motions of the mold carrying arms are powered, by a single reversible electrical servo motor (24) which drives a drive gear , (26). The, drive gear (26) directly drives a first driven gear (28) and an intermediate driven gear, (30) which, in turn …
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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
- Filed November 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2023.
- 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.