Abstract: An omni-directional impact actuating mechanism for utilization in actuating a system such as a munition device. By utilizing a multi-directional impact sensor the munition device becomes omni-directional in that it can be detonated when receiving an impact force from any angle. The omni-directional actuating mechanism includes: an actuating member which is movable between a first position and a second position, a control mechanism for switching the actuating member between its two positions and an impact sensor which serves to operate the control mechanism for switching the actuating member. The control mechanism itself is switchable between a first condition for initially applying a force for restraining the actuating member in its first position and a second condition for subsequently applying a force for moving the actuating member into its second position.

Abstract: Disclosed is an orthodontic appliance for intermaxillary tooth correction comprising a pair of housings adapted to be connected to teeth in the upper and lower jaws respectively. Each housing has a pulley joined together by a pull cable with springs acting to draw the ends of the cable in opposite directions. The cables are wound in opposite directions so that the cable ends need not be centered in the housings. This facilitates assembly of the devices in which both are made of identical parts for ease of manufacture.