Class 175/365 - Outwardly directed stub axle

Subclass of Class 175 - Boring or penetrating the earth
Definition: Apparatus in which the rolling cutter element is journaled
No. of patents: 20
Last issue date: 07/22/2008

Number	Title	Issue Date
7401668	Single cone rock bit having inserts adapted to maintain hole gage during drilling A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string. A bearing journal depends from the bit body. A single roller cone is rotatably attached to the bearing journal. The roller cone has a plurality of inserts dispose...	07/22/2008
7320375	Split cone bit A roller cone drill bit and a method for designing thereof. The roller cone drill bit includes a bit body configured to be coupled to a drill string and a journal depending from the bit body. A split roller cone is rotatably attached to the journal. The split roller...	01/22/2008
7100711	Single cone rock bit having inserts adapted to maintain hole gage during drilling A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string. A bearing journal depends from the bit body. A single roller cone is rotatably attached to the bearing journal. The roller cone has a plurality of inserts dispose...	09/05/2006
6935443	Mini disk bit A small sized disk bit includes a bit holder accommodated in a bearing journal on its side (overhangingly), and a disk body with asymmetrically designed wedge flanks mounted rotatably thereon. To enable the disk body to absorb high radial and axial strong forces enc...	08/30/2005
6719073	Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string, a bearing journal depending from the bit body and a single roller cone rotatably attached to the journal. The roller cone has a plurality of inserts disposed ther...	04/13/2004
6533051	Roller cone drill bit shale diverter A roller cone drill bit includes a bit body adapted to be rotated about a longitudinal axis. At least one leg which terminates in a shirttail portion depends from the bit body. The shirttail portion defines a first end face having a first circumferential ...	03/18/2003
6321858	Bit for directional drilling An improved drill bit for directional drilling includes a housing or headpiece having means at a rear end thereof for mounting the bit on a trailing component of a drill head, and passages for ejection of drilling fluid into a borehole. A first axle is mo...	11/27/2001
6119797	Single cone earth boring bit The invention discloses a single cone earth boring bit which is adapted to be used for boring in oil fields, mining and geological prospecting. The single cone earth boring bit is composed of a bit body (1), gauge blocks (2), active cutting gauge teeth (4...	09/19/2000
6026916	Rotary drill arrangement A rotary drill arrangement comprising a combination spade drill body having a rotational axis, a shank portion, and a generally planar spade cutter portion with a pair of oppositely directed cutting edges extending radially of the axis, and a rotatable fr...	02/22/2000
5961185	Shielded cutterhead with small rolling disc cutters An improved disc type rolling rock cutter, and novel cutterheads employing such cutters. A rock cutter with an improved, simplified structure, with compact bearing, and smooth, rounded blade shape is disclosed. The design incorporates a cutter ring, beari...	10/05/1999
5626201	Disc cutter and method of replacing disc cutters An improved rolling disc type cutter, and novel cutterheads employing such cutters. The cutter includes a washer surface and a cutter ring assembly. The cutter ring assembly further includes an annular cutter ring with an interior annulus defining portion...	05/06/1997
5147000	Disc drill bit A drill bit for use in drilling a well bore comprises a main drill body adapted to be rotated about a substantially vertically disposed axis of rotation and having therein a duct extending longitudinally along such axis, for supplying a drill fluid under ...	09/15/1992
5064007	Three disc drill bit A drill bit for use in drilling a well bore in accordance with this invention comprises a main drill body adapted to be rotated about a substantially vertically disposed axis of rotation and having therein a duct extending longitudinally along such axis, ...	11/12/1991
4936398	Rotary drilling device A drill bit for earth boring purposes includes a drill bit body which is rotatable about a drilling axis, a single cutting member mounted rotatably on the body and a counter-reaction member also mounted on the body. The counter-reaction member extends par...	06/26/1990
4832143	Rotary drilling device A rotary drilling device is disclosed of the type having a body connected to a rotary drive system for rotation about a primary axis in order to bore into the ground to form a cylindrical hole. The device has a rotary cutting member mounted on one side ne...	05/23/1989
4796713	Activated earth drill The invention relates to a drill bit which includes a drive arrangement having two opposed drive shafts which are transverse to the drill rod axis, mechanism for driving the shafts and a rock comminuting cutter which is eccentrically mounted on each of th...	01/10/1989
4790397	Rotary drilling device A rotary drilling device is disclosed of the type having a body connected to a rotary drive system for rotation about a primary axis in order to bore into the ground to form a cylindrical hole. The device has a rotary cutting member mounted on one side ne...	12/13/1988
4417629	Drill bit and method of manufacture A method of making a rolling cutter drill bit involving the steps of forming a body member having an upper portion adapted to be threaded and passaging therein, forming at least one arcuate recess in the lower end of the body member, providing a lug assem...	11/29/1983
4359114	Raise drill bit inboard cutter assembly A raise bit (10) is constructed with a plurality of housings (30) secured to cutter carrier frame (14) and disposed about drive stem (12). Housings (30) include a rectangularly-shaped mounting box (48) for rotatably supporting an outboard roller cutter (2...	11/16/1982
4298080	Rock cutting tools A compact and relatively lightweight rock cutting tool comprises a pair of disc cutters disposed in parallel, the disc cutters having circumferential cutting edges; a support member for the cutters disposed radially inwardly of the cutting edges thereof a...	11/03/1981

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Class 175/365 - Outwardly directed stub axle