Abstract: The present invention provides a shielded electrical connector, that has outer member that may be screw threaded together and they are usually electro conductive, this member is a metallic element combined with an inner insulated member made of a rotatable, soft plastic or rubber material that not only insulates but provides a cushion protective environment for an inner electrical conduit.

Abstract: A roller bearing hot box sensor utilizing a metallic temperature sensitive longated wire element. The wire element contracts at temperatures in the range of about 125.degree. F. to about 225.degree. F. so that when the contraction movement of the wire is attached to a connector means that operates a firing pin. Movement of the wire element initiates an electrical battery or other power source and thereby transmits electrical current to a signaling device, that gives a signal.

Abstract: An activation device to initiate functioning of a bomb fuze upon ejection the bomb from an aircraft comprises a tube filled with a fluid or semi-fluid and attached to the skin of the bomb, between the support lugs and beneath the ejection mechanism. One end of the tube is closed and the other end is fitted with a movable piston, with a sensor positioned adjacent to the piston. Upon bomb release, the tube is impacted by the ejection mechanism, displacing the fluid and moving the piston against the sensor. The signal from the sensor initiates fuze action. Piston movement may be utilized in any suitable manner, such as initiating an explosive device, impacting upon a piezoelectric element, or unlocking a mechanical linkage.