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| Number | Title | Issue Date |
| 6101948 | Method of manufacturing solid rocket motors A method for manufacturing solid rocket motors comprises placing a mandrel having at least one collapsible solid slot former positioned thereon substantially centrally along the axis of a rocket case, casting uncured solid rocket propellant about the mand... | 08/15/2000 |
| 5551344 | Method and apparatus for overbalanced perforating and fracturing in a borehole An overbalance technique propagates a fracture in a formation to stimulate hydrocarbon production from a wellbore. A liquid column in the wellbore is driven into the formation by a gas generator to propagate the fracture. The gas generator can be compress... | 09/03/1996 |
| 5483895 | Detonation system for detonating explosive charges in well In well perforating operations, it is necessary to detonate shaped charges suspended in the well. To avoid dangerous detonation at the surface, a pressure responsive mechanism is set to respond to a pressure indicative of operation at a selected depth. Th... | 01/16/1996 |
| 5231245 | Explosives The invention relates to a new method of using explosives. In the past it was the practice to use the shock wave front or the pressure pulse, or both, generated by a detonated explosive mass to directly affect a target or to deform and drive a solids element a... | 07/27/1993 |
| 5003880 | Process for the impact healing of inner discontinuities or defects in the sub-surface region of a cast component A process for the impact healing of inner discontinuities or defects in the surface area of a cast workpiece where the defects are localized comprises locating an explosive charge on the surface of the workpiece over the inner discontinuities or defects a... | 04/02/1991 |
| 3960082 | Down-the-hole device for breaking rock, concrete and reinforced concrete by pulsewize high liquid pressure The device has a hollow housing having made therein a chamber adapted to accommoate an explosive charge, separated by a partition made of an elastomeric material for sealing the chamber from the cavity of the housing, communicating with the hole through l... | 06/01/1976 |
