Abstract: A trolling line retainer and release device for use with downriggers or outriggers comprising a conical magnet molded into a hinged cap and a mating threaded conical magnetically permeable closure containing components used to attach the invention to a downrigger or outrigger cable. The latching cap securing the line at one end of the cap that is pinned at the diametrically opposite end to provide a moment to delatch the magnet upon a fish striking the lure or bait. The magnetic biased line retainer consist of two elastomer pads shaped to provide a serpentine path to secure the line. The retention force of the line being adjustable by varying the gap between the magnet and the magnetically permeable closure. The cable attachment mechanism is spring biased to provide a shear force between a piston and the cylindrical housing. The position of the piston can be changed by a simple rotation of a lever, located at the rear of the housing, to unlock the cable and permit free sliding movement of the device.

Abstract: A dual orifice injector assembly for use in a hybrid rocket motor having a oost and sustain mode and capable of controlling liquid flow rate for the two different modes of operation comprising an inlet manifold to distribute the fluid through a sustain injector and boost injector, actuating means for axially moving the sustain injector into a position to close off the boost injector for the sustain mode of operation and a flow deflector to cause the fluid to be dispersed in a fan like pattern at an angle 180.degree. to the axis of the manifold housing.