Abstract: An elongated, flexible, flat conductive tape can be applied to any surface to be monitored for water or other liquid leaks, and electrically connected to any suitable type of conventional electrically operated leak detector. A pair of parallel spaced conductors is disposed on one side of the tape that run longitudinally along the length thereof. The conductors are spaced from one another by a small distance to insure that only a small quantity of water or other conductive liquid is necessary to bridge the gap between the conductors, and create an electrical short circuit or substantial impedance reduction between the two. In addition, the conductors are preferably as flat as possible to insure that liquid can freely flow transversely across them without being impeded thereby. Both of these features insure that the detector tape can sense even very small quantities of liquid, thereby generating an early warning of a leak condition before extensive damage results.

Abstract: A toy grenade utilizes a self-powered camera flashcube in which one of the flash bulbs is activated upon an impact of the grenade with a surface after being thrown. The grenade includes fins at one end and a weight at the other end for providing a stabilized flight with the weight being rubber or the like and is designed for impact with the ground or other surface. Supporting the weight is a flexible resilient member, such as a wire, which is fixably connected to the body of the grenade. An actuating member extends from the weight through a hole in the grenade body so that it will enter one of the peripheral slots on the flashcube so that upon impact of the grenade on a surface, the actuating member moves into contact with a peripheral contact on the flashcube so as to activate the associated bulb in the flashcube in exactly the same manner that the bulbs in the flashcube are activated when mounted on a camera.