Patent ID: 9527182
Filing Date: 2016-12-27
CPC Classification: B08B,B23B,B23Q,B24B,Y02P,Y10T

Claim Text:
1. A device for the extraction of a processing product during processing of a workpiece, comprising a double-walled extraction hood having a first inner housing part and a second outer housing part which is arranged at a distance from the first inner housing part, said first and second housing parts having an axis and are arranged in coaxial relationship one within the other to thereby form an air channel between the first and second housing parts, said air channel having a front end, which is adapted for alignment with the workpiece, and a rear end, which is arranged opposite to the front end and communicates with a deflection chamber that is connectable with a vacuum generator and is formed circumferentially around the first inner housing part with a width that is greater than a width of the second outer housing part, said air channel provided to direct a flow from the front end to the rear end, said extraction hood accommodating at least part of a processing device for processing the workpiece and being connectable thereto, wherein said deflection chamber has an uninterrupted circumferential wall bounding a smaller space at one radial side and a larger space at another opposite radial side, an axial circumferential inlet communicating with the rear end of the air channel and a straight axial outlet extending from the larger space of the deflection chamber parallel to the axis of the first and second housing parts and guiding a flow out of the deflection chamber in an axial direction.