Patent ID: 9175938
Filing Date: 2015-11-03
Classification: B23K,F41C,F42B

Abstract:
1. A device for cutting a substrate having an inner surface, the device comprising: a hub assembly configured for placement adjacent to the inner surface of the substrate, wherein the hub assembly includes a rotatable ring; and a plurality of Reactive Material (RM) feed assemblies attached to the ring such that the RM feed assemblies rotate when the ring rotates, wherein each of the RM feed assemblies includes a nozzle, an outer RM casing, a cavity within the outer RM casing for retaining RM therein and a piston arranged to move RM from the cavity to the nozzle, wherein the nozzle is extendible to extend toward the inner surface of the substrate when the ring rotates, and wherein each of the RM feed assemblies includes means for igniting the RM.