Abstract: The invention provides tire inflation transfer tubes and methods of use. The transfer tubes can be flexible tubing with standard valve stem connectors to provide sealed transfer of pressurized gas between an inflated tire and a tire to be inflated.

Abstract: An inflatable plug assembly suitable for use in the plugging of boreholes. The plug assembly having quick and slow inflation working modes selectable by the operator. The slow inflation working mode is obtained by orientation of the plug assembly such that the gas phase of the expandable working fluid is released on actuation by the operator. The quick inflation working mode is obtained by orientation of the plug assembly such that liquid phase expandable working fluid is released on actuation by the operator.