| ATLAS COPCO SECOROC LLC Patent applications |
| Patent application number | Title | Published |
|---|
| 20120103692 | METHOD AND SYSTEM FOR DRILLING USING GAS AS A DRILLING FLUID - A system and method of drilling. The method may generally include providing a drilling system including a rotary motor operable to rotationally drive a drill bit and providing a supply of compressible drill fluid, the supply producing an operating volumetric flow rate of fluid in a normal operating condition. The rotary motor operates at a rotational operating speed under a first volumetric flow rate of fluid, and the supply provides a volumetric flow rate of fluid greater than the first volumetric flow rate of fluid. The method further includes supplying the first volumetric flow rate of fluid from the supply to the rotary motor, and diverting a portion of fluid flow from the supply through a jet sub. | 05-03-2012 |
| 20110088953 | PERCUSSION ASSISTED ROTARY EARTH BIT AND METHOD OF OPERATING THE SAME - A hammer assembly is actuated to drive an earth bit through a formation. The hammer assembly includes a piston, and a flow control tube which extends through the piston. The flow control tube includes drive and return guide ports. The piston is repeatably moveable relative to the drive and return guide ports in response to a fluid flow through the flow control tube. In this way, the hammer assembly is actuated. | 04-21-2011 |
| 20110085877 | DOWNHOLE TOOL - A downhole tool includes a cutter rotatably mounted to a journal. The journal is fastened to a downhole tool frame with a fastener. The fastener is engaged by an insert and retainer so it is restricted from rotating. The insert extends over a head of the fastener, and the retainer extends over the insert. | 04-14-2011 |
| 20100230172 | SEAL ASSEMBLY FOR A ROTARY EARTH BIT - An earth bit includes a cutting cone carried by a lug, and an interstice seal assembly which forms a dynamic seal with a radial interstice lug surface of the lug. The interstice seal assembly includes a rigid sealing ring having lengthened and shortened arm portions. The lengthened arm portion extends outwardly from the shortened arm portion, and engages the radial interstice lug surface. | 09-16-2010 |
| 20100126778 | CUTTER ASSEMBLY FOR A RAISE BORING REAMER - A raise boring reamer assembly includes a saddle, and a journal assembly carried by the saddle. The journal assembly includes nose and gage shanks, and a cutter is carried by the journal assembly. Nose and gage wiper rings are positioned proximate to the nose and gage shanks, respectively. The nose and gage wiper rings move debris in opposed directions in response to the rotation of the cutter. | 05-27-2010 |
| 20100102513 | SEAL ASSEMBLY FOR A ROTARY EARTH BIT - An earth bit includes a cutting cone rotatably mounted to a lug, and a seal assembly positioned to provide a seal between the cutting cone and lug. The seal assembly includes first and second rigid rings, and a first elastomeric sealing ring which carries the first rigid ring. The second rigid ring rotates in response to the rotation of the first elastomeric sealing ring, so that the second rigid ring is less likely to lock. | 04-29-2010 |
| 20090173546 | EARTH BIT WITH HUB AND THRUST UNITS - An earth bit includes a cone rotatably mounted to a shaft with a hub unit and thrust roller bearings. The hub unit is moveable between mounted and unmounted positions on the shaft, as a single unit, in a repeatable manner. The hub unit includes a pair of roller bearings positioned between inner and outer races. The outer race includes a recess extending around its outer periphery. A sealing structure is slidingly engaged with the recess to provide a seal between the cone and shaft. | 07-09-2009 |
| 20090078343 | EARTHBORING TOOL AND METHOD OF CASEHARDENING - A method of casehardening an earthboring tool component includes steps of providing an earthboring tool component and providing a semiconductor light emitting device carried by a mechanical arm. The mechanical arm is used to move the semiconductor light emitting device relative to the earthboring tool component. Light emitted by the semiconductor light emitting device is directed to a surface of the earthboring tool component so that it is casehardened. | 03-26-2009 |
