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| Number | Title | Issue Date |
| 7165609 | Apparatus for handling tubular goods An apparatus for handling tubular goods which includes an elongate tubular body having a peripheral sidewall and opposed ends. The peripheral sidewall has a plurality of axial slots arranged circumferentially around the tubular body parallel to an axis of the tubula... | 01/23/2007 |
| 7080702 | Rotating deck bushing with dust guard system A rotary deck bushing having an outer body held in a fixed orientation within a drill deck and an inner bushing portion that is configured for rotatable positioning within the outer body portion. A floating center bushing is removable positioned within the inner bus... | 07/25/2006 |
| 5992544 | Fire suppression apparatus for well drilling system In a well drilling system a fire suppression apparatus includes a pressure rated bell nipple or enclosure member mounted on the blowout preventer and including an elongated central passage opening at one end to an enlarged bore portion adjacent a restabbi... | 11/30/1999 |
| 5295536 | Drilling mud container apparatus In accordance with an illustrative embodiment of the present invention, a container for preventing spilling of drilling mud onto the rig floor to thereby save the mud for later reuse includes a diametrically split and hinged barrel having a fixed lower se... | 03/22/1994 |
| 4798505 | Process and apparatus for removal of dust and chip material at the machining station of a machine tool On the tool spindle of a machine tool, a hollow ring is mounted on the headstock or on the sleeve flange thereof and is provided on its underside with an annular clearance forming an endless ring nozzle. A pressurized fluid is introduced into the channel ... | 01/17/1989 |
| 4640372 | Diverter including apparatus for breaking up large pieces of formation carried to the surface by the drilling mud A diverter for drilling mud is disclosed that has a packer housing mounted on the upper end of a riser through which drilling mud flows to the surface between the riser and the pipe string extending through the riser. A packer having a body of resilient m... | 02/03/1987 |
| 4215753 | Drilling fluid cooling system Disclosed herein is a transportable cooling system for cooling drilling mud in the course of drilling for geothermal sources or deep well drilling. The cooling system includes a mud carrying radiator provided with a water sprinkler assembly and fan for co... | 08/05/1980 |
