Abstract: Heat resistant cables and cords that are used with portable communications equipment wherein the user thereof must be able to operate in extremely hostile environments including being present in a fire are requisite in order to provide continual communications. These fire and heat resistant cables and cords ensure that emergency responders, such as fire and rescue responders, using such a communications system is in constant contact with others on the team and also with the outside so as to be able to call in for help or additional resources and thus ensure the safety of that first responder.

Abstract: A coupling system that forms very high moisture resistance to connectable elements comprising a male element containing female connection points inserted into a female element containing male connection points. These made from rigid and thermoplastic materials. This system has a series of circumferentially barbed receiving grooves on the female element and circumferentially formed barb elements on the male element and designed to fit in the grooves of the female element. These grooves mate to form a first moisture barrier and a rigid lip on the male element circumferentially surrounding the female connection points, presses into a flexible face containing the male connection points on the female element to form yet another moisture barrier. Yet another improvement is the presence of a circumferentially formed shoulder on the male element designed to snugly fit into a circumferentially formed shoulder receiving element on the female.

Abstract: A coupling system that forms a moisture resistant shield around connectable elements comprising a male element containing female connection points inserted into a female element containing male connection points. These made from rigid and thermoplastic materials. This system has a series of rings on the female element and grooves on the male element. These grooves mate to form a first moisture barrier and a rigid lip on the male element circumferentially surrounding the female connection points, presses into a flexible face containing the male connection points on the female element to form yet another moisture barrier. This system can be easily be connected, disconnected and reconnected a plurality of times and yet the highly moisture resistant seal is repeated. It finds good use in communications or electrical connections among others.