Patent ID: 9492874
Filing Date: 2016-11-15
CPC Classification: B23B,Y10T

Claim Text:
1. A chuck comprising a chuck body having therein at least two guide grooves extending in a radial direction, a clamping jaw disposed in a movable arrangement in each of the guide grooves, the clamping jaw being provided with helical gearing extending in the direction of the body and a wedge rod movably mounted in the chuck body and the wedge rod being in a driving connection with a helical gearing of a clamping jaw, by means of a helical gearing disposed on the wedge rod, with a through-hole in the chuck body which emerges in a guide groove, wherein a sealing body is disposed on each of the guide grooves in an area of the through-hole, by means of which the guide groove is separated from the through-hole, and by means of which the clamping jaw can be moved, such that the clamping jaw and the sealing body effect airtight, and/or watertight, contact with one another,