Abstract: Compressors having multi-speed gearboxes are disclosed. The apparatus comprises: a fluid channel to convey a fluid, a compressor fluidly coupled to the fluid channel, a gearbox operatively coupled to the compressor, the gearbox to control the compressor using a first gear ratio and a second gear ratio different from the first gear ratio to vary a flow rate of fluid in the fluid channel, and clutches to vary the gearbox between the first gear ratio and the second gear ratio.

Abstract: An example transmission comprising a lubricant feed passageway to receive lubricant; an input shaft having a cavity that defines a shaft collection trough to receive the lubricant from the lubricant feed passageway, the input shaft defining a radial passageway to enable the lubricant to flow from the shaft collection trough to an exterior surface of the input shaft; and a carrier to receive at least a portion of the input shaft, the carrier defining a carrier collection trough and channels formed in the carrier to distribute the lubricant to at least one of rotating components or non-rotating components in the carrier, the carrier collection trough to receive the lubricant from the shaft collection trough via the radial passageway in response to the input shaft rotating.

Abstract: Compressors having multi-speed gearboxes are disclosed. The apparatus comprises: a fluid channel to convey a fluid, a compressor fluidly coupled to the fluid channel, a gearbox operatively coupled to the compressor, the gearbox to control the compressor using a first gear ratio and a second gear ratio different from the first gear ratio to vary a flow rate of fluid in the fluid channel, and clutches to vary the gearbox between the first gear ratio and the second gear ratio.

Abstract: Test systems and methods for testing hover flight of an Unmanned Aerial Vehicle (UAV). In one embodiment, a test system includes a winch having a cable, and a mounting tree assembly configured to attach to the cable of the winch and to attach to the UAV. The winch is configured to restrain an altitude of the UAV during hover flight while the mounting tree assembly permits five degrees of freedom for the UAV.

Abstract: Test systems and methods for testing hover flight of an Unmanned Aerial Vehicle (UAV). In one embodiment, a test system includes a winch having a cable, and a mounting tree assembly configured to attach to the cable of the winch and to attach to the UAV. The winch is configured to restrain an altitude of the UAV during hover flight while the mounting tree assembly permits five degrees of freedom for the UAV.

Abstract: A vehicle headliner assembly includes a first structural member cooperating with a second structural member to form air ducts between them. A portion of the first structural member is covered by a decorative cover that presents an appearance surface to the vehicle passenger compartment. Integrally formed in the second structural member are an energy absorbing structure and an attachment structure. Thus, the headliner assembly eliminates the need for separate air ducts, separate energy absorbing material, and separate wiring harness and hose clamps. The headliner assembly is also configured to facilitate attachment of passenger compartment devices such as grab handles, without the use of separate fasteners or retainers.

Abstract: A method for forming a headliner assembly includes forming a main body having a periphery, and a shape corresponding to a desired shape of the headliner assembly; positioning the main body in a mold having a recess; closing the mold; and injecting foam into the recess to simultaneously form an energy absorbing member and join the energy absorbing member to the main body proximate the periphery of the main body.

Abstract: A method for forming a headliner assembly includes forming a main body having a periphery, and a shape corresponding to a desired shape of the headliner assembly; positioning the main body in a mold having a recess; closing the mold; and injecting foam into the recess to simultaneously form an energy absorbing member and join the energy absorbing member to the main body proximate the periphery of the main body.