초록 ▼

A connection between the ends of two discrete signal transmission devices allows signal propagation between the ends of the devices. The ends of the devices are axially aligned at a close distance from one another within an alignment sleeve. A length of heat-shrink tubing having a sealant on its inn

A connection between the ends of two discrete signal transmission devices allows signal propagation between the ends of the devices. The ends of the devices are axially aligned at a close distance from one another within an alignment sleeve. A length of heat-shrink tubing having a sealant on its inner surfaces is placed over the alignment sleeve and the ends of the devices. The tubing is heated and provides axially compressive and radially compressive forces on the alignment sleeve and device ends thereby providing a high tensile strength connection between the device ends.

대표청구항 ▼

The method of detonating an explosive column with a consumable, low-residue producing blasting system having a detonator adjacent to the bottom of the explosive column, the method comprising the steps of: providing a length of detonating cord between an initiating point of the system and the top of

The method of detonating an explosive column with a consumable, low-residue producing blasting system having a detonator adjacent to the bottom of the explosive column, the method comprising the steps of: providing a length of detonating cord between an initiating point of the system and the top of the explosive column; providing a length of shock tube between the explosive column top and the detonator; providing a length of heat-shrinkable tubing; inserting said detonating cord through said tubing; axially aligning an end of said shock tube and an end of said detonating cord at the explosive column top at a sufficiently close distance from one another for reliable signal propagation therebetween; sliding said tubing over said aligned ends; and heating said tubing, thereby shrinking said tubing for providing axial compressive and radial compressive forces on said ends.