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| Number | Title | Issue Date |
| 7765749 | Fast moving drilling rig A method and apparatus for transporting and assembling a drilling rig is disclosed. The drilling rig of a preferred embodiment of the present invention utilizes specialized positioning pads integral to the side boxes of the drilling rig to facilitate the connection ... | 08/03/2010 |
| 6951082 | Drilling rig with torque carrier A telescoping rig with an upper mast telescopingly received within a lower mast. A torque carrier is formed of an upper part suspended within the upper mast and a lower part attached to the lower mast. The lower part may be secured to the upper part when the rig is ... | 10/04/2005 |
| 6877284 | Retrofit hurricane and earthquake protection Retrofit connectors that secure together the outside sheathing and underlying structural members of wood-frame or masonry houses, preventing damage when subjected to lateral stresses from a hurricane, or transverse loads from an earthquake. The connectors have speci... | 04/12/2005 |
| 6484468 | Retrofit hurricane and earthquake protection Retrofit connectors that secure together the outside sheathing and underlying structural members of wood-frame or masonry houses, preventing damage when subjected to lateral stresses from a hurricane, or transverse loads from an earthquake. The connectors... | 11/26/2002 |
| 6460307 | Boom attachment for a prime mover A boom attachment for a prime mover for lifting and setting trusses, walls, beams, and related structural components. The boom attachment for a prime mover includes a boom assembly including a prime-mover attachment assembly being adapted to mount to a pr... | 10/08/2002 |
| 6095263 | Drill rig operator cab viewport A viewport is located in the floor of a drill rig operator's cab to enable a rig operator to view drilling operations. As drilling commences, the operator may view the material underlying the rig and make a visual determination that the coal seam has been... | 08/01/2000 |
| 5956915 | Tubular drill mast A drill mast has two tubular side chords and a central chord equally spaced from the side chords. The central chord is joined to the side chords by transverse and diagonal tubular lacing members. Space frames formed of tubular members extending from spher... | 09/28/1999 |
