Abstract: While outputting audio content, a wearable audio output device detects a gesture performed by a hand of a user of the wearable audio output device. In response to detecting the gesture, the wearable audio output device performs a first operation corresponding to the gesture in accordance with a determination that the gesture is detected within a respective distance of a side of the user's head and is a first type of hand gesture determined based at least in part on a shape of the hand during performance of the gesture. In response to detecting the gesture, the wearable audio output device forgoes performing the first operation in accordance with a determination that the gesture is not the first type of hand gesture determined based at least in part on a shape of the hand during performance of the gesture.

Abstract: A sewer cleaning machine includes a frame, a drum supported by the frame, and a motor supported by the frame and coupled to the drum. The drum includes a cable that is selectively extendable out of the drum. The motor is operable to rotate the drum. The frame is moveable between a first position, in which the drum is supported by the frame off of a surface, and a second position, in which the drum contacts the surface.

Abstract: A remotely controllable fluid pressure actuated mechanism for controlling the actuation of a sliding gate valve or the like, for use with tank trucks, pipelines, storage tanks or the like, for helping to eliminate the possibility of hazardous spills.