Abstract: In making a quick connection and hermetic seal for coupling low pressure systems of a type such as heat pipes and the like, a pre-installed fitting forming the sealing portion of a quick connection assembly is disposed in a depression formed in the sidewall of the low pressure chamber so that the chamber and the sealing portion of the connecting assembly can be fully processed together. The open end of a second system is coupled into the inserted sealing fitting by means of threads formed about a pipe plug device and carried by the tubular end portion of the second system.Sealant applied between the threads of the plug and fitting so that as the plug advances along the fitting a gas-tight seal will be obtained. The fitting includes a sealing membrane disposed across the inserted end thereof to be upset by advancing movement of the tubular end portion carried by the plug.

Abstract: A time slot interchanger for connecting data samples between locations in a telephone system, including first and second data memories for storing and transmitting data samples, a number of cross point switches, a first data bus for connecting data between the first memory and a first one of the cross point switches, a second data bus for connecting data samples between the second memory and a second one of the cross point switches, and a number of third buses connected between one of the cross point switches and a different one of the locations. The interchanger also includes a channel or control memory for storing instruction addresses for addressing the data memories and the cross point switches. The interchanger also includes a cross point control for controlling the connections of the first and second buses to the cross point switches and a time slot counter for addressing the channel or control memory, and the data memories.