Abstract: A device in a suction tube to be connected to a suction conduit for surgical or dental use to separate from the suction flow entrained particulate material. The suction tube being open at both ends and has a sieve element located therein. The sieve is inclined in relation to the axial direction of the suction tube in order that separated material shall be collected in a pocket formed at the suction end of the suction tube.

Abstract: A non-horizontal conveyor for feeding objects has a conveyor belt, a first pulley at a first end forming a loading area of the conveyor, and a second pulley at a second end forming a feeding area of the conveyor. The conveyor also has a conveyor cover having an upper part and a lower part, wherein the upper part extends from the second pulley towards the first pulley, thereby covering a substantial part of the conveyor and preventing the objects from falling out of the conveyor during transport. The lower part is resiliently attached to the upper part adjacently to the first pulley, thereby preventing a plurality of objects from aggregating in the loading area at the first pulley. Furthermore, the conveyor cover has two symmetrical members rotationally attached to its lower part.