Keys for drill chucks
AssigneeThe Jacobs Manufacturing Company
InventorGeorge Cecil Derbyshire
Life of this patent
Estimating the term…
Abstract
A drill chuck key with ejector means for disengaging at least its geared head part or at least its pilot portion from the chuck when released by the user.
Claims6
In a drill chuck key having a geared head part and a pilot part, an ejector means for disengaging the key from a drill chuck when axial pressure on the key is released, in which said ejector means is constituted by an element having a pair of resilient limbs arranged to bear against the plain portion of a drill chuck in which the pilot holes are formed, said limbs being splayed out as the key is engaged with the chuck and acting to withdraw the complete key from engagement with the chuck when said key is released by the user.
Dependencies are inferred from the claim text.