High speed oxyacetylene cutting of a thick steel part and device therefor
CA 2403534 A1 · Owner: Prioretti-Hacking, Francoise · Inventors: Prioretti, Guy; Prioretti, Veronique; Prioretti, Jean-Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method and a device for high speed oxyacetylene cutting of thick steel parts. The invention is characterised in that it consists in: synchronously moving a oxyacetylene cutting torch (30) maintained at a predetermined height above the part to be cut (1) and a kerf cutting torch (20) comprising at least a blade-type nozzle (25) which passes inside the very oxyacetylene cut (1.3). The blade-type nozzle (25) emits through its cutting edge at least a heating and/or gas cutting fluid jets striking hard the kerf front combining with the gas cutting fluid jets emitted by the oxyacetylene torch (30) to form a kerf front (1.4) having a broken line profile.
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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 March 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 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.