Abstract: A process and apparatus is provided for the continuous manufacture of a water-in-oil explosive emulsion precursor. Separate streams of the water phase component and the oil phase component are introduced into an in-line motionless mixer. A chosen portion of the output from the mixer is recirculated and returned to the motionless mixer for further emulsification. The process allows for the production of a very high phase ratio water-to-oil emulsion (up to 95% water phase) without phase inversion after long storage. The precursor is simply converted to a sensitive explosive by means of known density lowering techniques.

Abstract: A self-locking encephalic electrical probe is used for stereoelectroencephalographic exploration in the treatment of epilepsy or other brain diseases. The probe includes a long, hollow, flexible tube of small diameter, preferably made of medium density polyethylene. A series of at least two electrically conductive rings, preferably made of silver, are located close to one another along the tube for detecting the electrical activity of nerve cells. A series of insulated electrical conductors are located inside the hollow tube, each conductor connecting a conductive ring to a multi-contact terminal located outside the hollow tube. A removable stylet is inserted into the hollow tube to give it rigidity and to control the direction of introduction of the probe into the brain. The stylet is removed from the tube to restore flexibility to the tube after the probe has been introduced in the brain. A self-locking rigid anchor preferably made of stainless steel holds the probe in place.

Abstract: A process is provided for the continuous separation of suspended basic alkali metal azide particles from a liquid reaction medium by bringing the liquid reaction medium into contact with a non-reactive mineral oil whereby the suspended metal azide particles migrate into the mineral oil phase and are thereafter separated therefrom.