Abstract: Described is a sleeve device having a sleeve body for insertion into a vehicle frame of a vehicle seat. The sleeve body includes a tubular wall with an inner axial passage configured to receive a rod of a headrest and at least one elastomeric element overmolded to an outer surface of the sleeve device. The elastomeric elements may be provided in the form of ribs, rings, or other shapes. Additionally or alternatively, the sleeve device includes a latching mechanism having one or more flexible tabs configured to limit lateral and/or vertical movement.

Abstract: The present disclosure provides a rotational spring dampener that has a compression limiter, a first disk, and a second disk. The first disk is disposed at a first end of the compression limiter and the second disk is disposed at a second end of the compression limiter, where the second end is opposite the first end. The rotational spring dampener also has a tensile member. The tensile member is connected to the first disk and the second disk.

Abstract: A modular aircraft support system is disclosed. In one embodiment, the modular system includes a mobile cart and an air conditioning system configured to provide conditioned air to an aircraft. The embodiment also includes a modular power converter for converting input power to a desired output power, which can be input to a supported aircraft. The cart is configured to receive a plurality of different interchangeable power converters, such as a 115 VAC, 400 Hz power converter or a 270 VDC power converter. In some embodiments, a variety of other components are also coupled to the mobile cart, including a local generator and engine. The generator may supply power to the air conditioning system and to the converter.

Abstract: A modular aircraft support system is disclosed. In one embodiment, the modular system includes a mobile cart and an air conditioning system configured to provide conditioned air to an aircraft. The embodiment also includes a modular power converter for converting input power to a desired output power, which can be input to a supported aircraft. The cart is configured to receive a plurality of different interchangeable power converters, such as a 115 VAC, 400 Hz power converter or a 270 VDC power converter. In some embodiments, a variety of other components are also coupled to the mobile cart, including a local generator and engine. The generator may supply power to the air conditioning system and to the converter.