Patent ID: 11885189
Assignee: ROBERTSON INTELLECTUAL PROPERTIES, LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 10:
11. A method for cutting or severing a conduit, comprising:
inserting a cutting or severing apparatus into the conduit, the cutting or severing apparatus comprising a fuel, an ignition mechanism for igniting the fuel, and a nozzle head located within a distal end portion of the cutting or severing apparatus and comprising a plurality of apertures;
igniting the fuel via the ignition mechanism to create a flame and combustion products and pressure in an internal cavity of the nozzle head to move the plurality of apertures and the nozzle head at least partially out of the distal end of the cutting or severing apparatus so that the plurality of apertures are exposed to the conduit; and
discharging the flame and hot combustion products out of the plurality of apertures to sever the conduit.