Apparatus and method for doming bottoms of containers
CA 2069066 A1 · Owner: Ball Corporation · Inventors: Miller, Edward C.; Worwag, Randall S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Randall S. Worwag et al. Docket D-1467 Abstract Or the Disclosure, APPARATUS AND METHOD FOR DOMING BOTTOMS OF CONTAINERS Domer apparatus includes a housing having a cavity therein; an inner die being disposed in the cavity and being disposed around a longitudinal ram axis: an outer die being disposed in the cavity being disposed around, the longitudinal ram axis and being disposed circumferentially around the inner die; second, third, and fourth springs being disposed in the cavity radially outward from the longitudinal ram axis being circumrerentially, spaced-apart, and operatively engaging the inner die; and an air spring being disposed outwardly of the housing distal from the outer die …
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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 May 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2014.
- 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.