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Class Information
Number: 175/87
Name: Boring or penetrating the earth > Convertible
Description: Apparatus adapted to perform functions other than earth boring or to perform an earth boring function in a different manner in response to (1) removal of a significant portion of the apparatus and/or (2) installation of additional parts or (3) by substantial rearrangement of the existing parts.










Patents under this class:

Patent Number Title Of Patent Date Issued
8701796 System for drilling a borehole Apr. 22, 2014
8424616 Track guiding system Apr. 23, 2013
8151909 Modular top drive lubrication system and methods Apr. 10, 2012
7926593 Rotating control device docking station Apr. 19, 2011
7913774 Modular connector and method Mar. 29, 2011
7828085 Modular top drive Nov. 9, 2010
6736225 Guide for attachment to a roof bolter to allow for core drilling May. 18, 2004
6289999 Fluid flow control devices and methods for selective actuation of valves and hydraulic drilling tools Sep. 18, 2001
6263985 Drilling machine with changeable drive unit Jul. 24, 2001
5921329 Installation and removal of top drive units Jul. 13, 1999
5810101 Horizontal drilling machine Sep. 22, 1998
5058688 Convertible vibratory or rotary core drill apparatus Oct. 22, 1991
4998590 Horizontal auger for skidsteer tractors and the like Mar. 12, 1991
4872518 Power chainsaw-ice auger conversion apparatus Oct. 10, 1989
4485570 Apparatus for mounting a drilling machine on an excavator bucket Dec. 4, 1984
4317493 Kelly drive bushing adapter Mar. 2, 1982
4296821 Drilling rig and conversion apparatus Oct. 27, 1981
4244431 Drilling apparatus with dual drill pipe and cross-over Jan. 13, 1981
3986570 Rock bit with quick change connection Oct. 19, 1976











 
 
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