Abstract: A rinse nozzle for an aircraft waste tank includes a tubular member mountable at one end in an opening in the waste tank for receiving cleaning solution through said one end to the interior of the tubular member. The other end of the tubular member extends into the tank and is closed to prevent the exit of cleaning solution out that end. The tubular member has a midsection with a reduced radius and a plurality of first openings circumferentially spaced apart around the midsection. An annular collar is rotatably disposed about the midsection of the tubular member and includes a plurality of second openings disposed thereabout, at least some of which extend outwardly and rearwardly of the direction of rotation of the annular collar to thereby cause the collar to rotate as cleaning solution flows from the tubular member out the first openings against the collar and then out the second openings.

Abstract: Fastening apparatus is provided for releasably holding a liquid-level sensor over an opening in a liquid container. An annular bracket is mounted about the opening for receiving the liquid level sensor, and an annular bracket extension is provided to project upwardly from the bracket, with the extension having a laterally projecting flange at its upper end. A holding ring is provided for placement over the bracket extension to overlie a sensor lip which projects laterally from a sensor. The sensor is positioned on the bracket and then the holding ring is positioned about the sensor to overlie the lip. The holding ring includes a laterally extending flange which is co-extensive with the flange of the bracket extension. A V-band clamp is removably fitted about the flanges of the bracket extension and holding ring to secure the flanges together and thus secure the holding ring over the lip of the sensor to secure the sensor in place.