Abstract: A method for cabin crew assist on an aircraft includes receiving a passenger source language selection for a particular seat, receiving a passenger electrical signal representative of passenger spoken words, converting the passenger electrical signal to a passenger source text message, buffering the passenger source text message and activating a service indicator on an assist display. The service indicator identifies the particular seat. The method include receiving a crew target language selection from the assist display. Translating the passenger source text message to a crew target text message in the crew target language. Displaying the crew target text message associated with the particular seat on the assist display.

Abstract: An apparatus for directing fluid flow is disclosed, including a valve structure having a chamber, a main port, a first port, and a second port, each of the ports being connected to the chamber. A poppet structure in the chamber is moveable between a first position blocking the first port and a second position blocking the second port. A first compliant member connecting the poppet structure to an inner wall of the chamber, is configured to alternate application of forces to the poppet structure, in opposite directions, between the first and second positions.

Abstract: An apparatus for directing fluid flow is disclosed, including a valve structure having a chamber, a main port, a first port, and a second port, each of the ports being connected to the chamber. A poppet structure in the chamber is moveable between a first position blocking the first port and a second position blocking the second port. A first compliant member connecting the poppet structure to an inner wall of the chamber, is configured to alternate application of forces to the poppet structure, in opposite directions, between the first and second positions.

Abstract: A shuttle valve and a method of fabricating a shuttle valve. In one embodiment, a shuttle valve comprises a casing having a first and second inlet ports, and an outlet port. The shuttle valve further comprises a sleeve disposed between the first and second inlet ports, a spool slidable within the sleeve along an axial line and having a plurality of detent grooves, and a C-spring. The sleeve has a spring retaining portion that includes at least one offset groove that is offset from the axial line. The C-spring is disposed in the offset groove, and engages one of the detent grooves on the spool.