Thermal torch and method
CA 1077386 A · Owner: Campana, Patsie C. · Inventors: Campana, Patsie C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
THERMAL TORCH AND METHOD, (Abstract of the Disclosure) A new and improved thermal torch or lance and method for boring, cutting, burning and the like of hard base material which facilitates concentrating and intensifying the thermic reaction thereof. The arrangement includes an elongated hollow inner sleeve or casing generally coextensively received within an elongated hollow outer sleeve or casing with the two casings being dimensioned so that a first gas flow passage is defined therebetween over the cooperative lengths thereof. At least one elongated rod is received within the inner casing in a manner defining at least one second gas flow passage over the cooperative lengths thereof. In …
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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
- Granted May 13, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 1997.
- 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.