Abstract: The present invention regards personal rescue devices for use by individuals separated from watercraft in open water. Provided are an inflation valve and rescue device having high reliability and insensitivity to environmental conditions. The inflation valve includes a fusible element, such as a stainless steel wire, which is fused or broken by application of an electrical current. Prior to use, the fusible element retains a trigger in a position to prevent a penetrator from releasing compressed gas from a gas canister. Upon activation and breaking of the fusible element, the penetrator is forced into the gas canister releasing gas to inflate the rescue device. The rescue device is retained within a deployment canister having a cover that is easily sealed and resealed to ease maintenance and operation. The rescue device is incorporated into a remotely activated rescue system including a miniature radio frequency transmitter which may be worn on a user's body such as on a wrist strap.

Abstract: A fire safety device for closing through-holes in floors and walls and for thus stopping the potential spread of fire and smoke in case of the occurrence of a fire, includes a section of conduit, a cup-shaped retainer spaced from the outside surface of the conduit section so as to define an annular space therebetween, the annular space containing a suitable and pre-measured quantity of intumescent material, and a floating floor below the intumescent material which, in the event of fire, will move inwardly to occupy the interior space previously occupied by the conduit section.

Abstract: A fire safety device for closing through-holes in floors and walls and for thus stopping the potential spread of fire and smoke in case of the occurrence of a fire, includes a section of pipe having a weakened wall, a cup-shaped retainer spaced from the outside surface of the pipe section so as to define an annular space therebetween, the annular space in turn being provided with a suitable and pre-measured quantity of intumescent material. The device is pre-fabricated and thus avoids the problems inherent in attempting to manually provide the intumescent material in a collar during construction.