Abstract: A deployable plug system comprises a handle assembly comprising a handle assembly conduit and a gas control valve configured to receive pressurized gas from a source of pressurized gas and to control flow of gas from the source of pressurized gas to the handle assembly conduit. The deployable plug system further comprises a bladder assembly comprising an inflatable bladder and a unitary check valve assembly configured to be coupled detachably to the handle assembly conduit to receive the flow of gas from the source of pressurized gas. The unitary check valve assembly comprises a one-way check valve that allows pressurized gas from the handle assembly conduit to enter the bladder when the check valve assembly is coupled detachably to the handle assembly conduit but that does not allow gas to leave the bladder. The unitary check valve assembly comprises a relief valve to enable pressurized gas to escape the bladder.

Abstract: There is disclosed a deployable plug system having an elongated handle assembly with a hollow conduit, a distal end with a conduit connector in fluid communication with the conduit and a hinge assembly having a handle mounting body, and a proximal end. A gas control valve is affixed to the handle assembly at the proximal end, is configured to receive pressurized gas from a source of pressurized gas, and has a valve trigger which selectively applies pressurized gas from the source of pressurized gas to the conduit. The deployable plug system also has a bladder assembly having a bladder mounting body removably connectable to the handle mounting body, a bladder attached to the bladder mounting body, a check valve assembly for allowing pressurized gas from the conduit to enter the bladder, and a check valve assembly connector that selectively connects the check valve assembly to the conduit connector.