METHODS, APPARATUS AND PYROTECHNIC COMPOSITIONS FOR SEVERING CONDUITS

摘要

METHODS, APPARATUS AND PYROTECHNIC COMPOSITIONS FOR SEVERING CONDUITS Methods of severing conduits along planes extending transversely to the axis thereof comprising confining a fuel composition within a fuel chamber in an elongated housing sized for insertion in a conduit, the housing including a plurality of spaced radially extending discharge nozzles communicated with the fuel chamber and positioned to direct fuel reaction products in directions transverse to the axis of the housing, positioning the housing inside a conduit to be severed and igniting the fuel composition confined in the fuel chamber so that reaction products formed therefrom exit the housing by way of the discharge nozzles and impact the conduit thereby severing the conduit. Apparatus and pyrotechnic fuel compositions are also provided.