Patent ID: 8911186
Filing Date: 2014-12-16
Classification: B23Q,Y10T

Abstract:
1. A suction cup dust extractor for a drill comprising: a housing; a drill collar attached to the housing, having a drill passage formed through it; a recess formed by walls of the housing having an opening and which, in use, locates against a work piece to create a chamber; an aperture located on the housing through which air can pass; at least one first air passage formed by the walls of the housing which connects between the drill and the aperture to enable air to pass from the drill passage to the aperture; and at least one second air passage formed within the housing which connects between the recess and the at least one first air passage and which enables air to pass from the recess to the aperture via a part of the at least one first air passage; wherein a dividing wall forms both a wall of the recess and a wall of the first passage, the at least one second passage being an aperture formed through that dividing wall; and further including an intermediary chamber in fluid connection with the recess and wherein there is provided a least one third air passage formed within the dividing wall which enables air to pass from the at least one first air passage to the intermediary chamber.