Abstract: A friction bearing for rotatably connecting a first component to a second component, including a spacer arranged to be non-rotatably connected to the first component, a first friction cone non-rotatably connected to the spacer, a housing arranged to engage the first friction cone and be non-rotatably connected to the second component, and a disc spring arranged to provide an axial force on the friction bearing.

Abstract: A friction bearing for rotatably connecting a first component to a second component, including a spacer arranged to be non-rotatably connected to the first component, a first friction cone non-rotatably connected to the spacer, a housing arranged to engage the first friction cone and be non-rotatably connected to the second component, and a disc spring arranged to provide an axial force on the friction bearing.

Abstract: The specification discloses an air logic circuit with two, five port valves connected between an air supply and a volume chamber for supplying an output signal at an output port when both valves are activated substantially simultaneously. When both valves are in a released condition there is no output signal and the air supply is connected through the serial combination of both valves to a volume chamber. When either of the two valves is activated alone, the volume chamber is coupled to the atmosphere through an exhaust orifice. When both valves are simultaneously activated, the volume chamber is coupled to an output through the serial combination of both valves.