Patent ID: 7861803
Filing Date: 2011-01-04
Classification: E21B

Abstract:
1. An auxiliary working apparatus for use with a drilling apparatus for drilling holes into the ground and which includes a support structure for supporting the drilling apparatus on the ground, a platform supported by the support structure in a configuration in which it forms a barrier at a spaced location above the ground on which the support structure is operatively positioned, a drill motor and a drill bit displacement mechanism supported by the support structure operatively above the platform and a drill bit operatively connected to the drill motor and extending through a hole in the platform to be displaced into the ground in which a hole is to be drilled, the auxiliary working apparatus including, in its operative configuration with respect to such a drilling apparatus, an auxiliary support structure supported by the support structure of the drilling apparatus operatively beneath the platform of the drilling apparatus; displacement means mounted on the auxiliary support structure in a configuration in which it is operable for displacing chippings displaced from a hole being drilled to a location spaced from the hole; and operating means for operating the displacement means; wherein the displacement means is at least one roller-type brush that is rotatably supported on the auxiliary support structure in a location in which, through its rotation, it can trap and displace chippings blown from the ground during drilling of a hole to a location on the ground spaced from the hole.