Abstract: A reusable shell casing having a housing with exterior grooves having a substantially central bore with a tapered end capable of receiving a payload and an opposite threaded end adapted to receive a novel reusable high pressure chamber assembly containing a removable powder chamber, a burst disk, and a threaded insert. The chamber assembly has a central bore having an upper bore portion that is cylindrically shaped having a threaded surface adapted to secure to the threaded portion of a threaded insert. The central bore also has a lower bore portion that is cylindrically shaped having a surface that is adapted to closely contour the circumference of the removable powder chamber. The powder chamber has a primary end having a primary opening adapted to receive a propellant located opposite a secondary end having a protrusion. The protrusion has a secondary opening adapted to receive a primer.

Abstract: A reusable shell casing having a housing with exterior grooves having a substantially central bore with a tapered end capable of receiving a payload and an opposite threaded end adapted to receive a novel reusable high pressure chamber assembly containing a removable powder chamber, a burst disk, and a threaded insert. The chamber assembly has a central bore having an upper bore portion that is cylindrically shaped having a threaded surface adapted to secure to the threaded portion of a threaded insert. The central bore also has a lower bore portion that is cylindrically shaped having a surface that is adapted to closely contour the circumference of the removable powder chamber. The powder chamber has a primary end having a primary opening adapted to receive a propellant located opposite a secondary end having a protrusion. The protrusion has a secondary opening adapted to receive a primer.

Abstract: A refrigerant filter, attachable to automotive air-conditioning systems, for removal of debris from air-conditioning refrigerants. The filter media is contained within a two-part hollow body for flow-through filtration of the refrigerants. The first and second parts of the hollow body are sealingly and removably attachable to one another to easily gain access to the filter media, which permits replacement of the filter media without removal of the filter body from the refrigerant line. The apparatus includes a first and second filter media, in which the second filter media prevent transfer of portions of the first filter media into the air-conditioning system.