Patent ID: 9404325
Filing Date: 2016-08-02
CPC Classification: B23Q,E21B

Claim Text:
1. A drill bit driver comprising: a) a lower spring support connected at a lower end to a base; and including an outer surface; b) an upper spring support slideably and telescopically mounted over the outer surface of the lower spring support, c) a means for resiliently biasing the upper spring support relative to the lower spring support, d) a table rotatably connected to the upper end of the upper spring support, such that the table rotates about a longitudinal axis, the table for receiving a drill bit thereon; and e) a means for tilting the table relative to the horizontal, wherein the tilting means includes a tapered inner surface on the upper spring support such that the upper spring support can tilt relative to the longitudinal axis thereby creating a table tilt angle beta.