| Patent Number |
Title Of Patent |
Date Issued |
| 7290621 |
Integrated mast and top drive for drilling rig |
November 6, 2007 |
| A process to lower or raise a drilling rig for transportation wherein the drilling rig includes a mast and a top drive. The process to lower includes the steps of moving the top drive within the mast with a vertical guide and torque reaction mechanism to a locked position and locking |
| 7290560 |
Valve cover locking system |
November 6, 2007 |
| An apparatus and method to assemble and disassemble a valve cover locking screw assembly for a reciprocating pump module block. The module block has a bore, a removable valve cover closing the bore, and a valve cover locking ring securable to the block and surrounding the bore with i |
| 7234388 |
Liner retention system |
June 26, 2007 |
| A liner retention system for a reciprocating pump having a piston and a piston rod operating in a cavity of a frame. The system includes a cylindrical liner for the piston and piston rod, the liner having a radially extending external shoulder. A liner clamp plate has a central openi |
| 6994171 |
Two section mast with self-aligning connections |
February 7, 2006 |
| A method of self-aligning connections for a two section mast. The method includes the steps of transporting the elongated bottom mast section to a guide frame adjacent to a well site, the bottom mast section having a pair of front legs and a pair of rear legs. An elongated top mast secti |
| 6955223 |
Blow out preventer handling system |
October 18, 2005 |
| A process to transport a blow out preventer for a drilling rig having a drawworks wherein the blow out preventer is transported between a storage area and a use position over a wellbore. The process includes the steps of connecting an upper connector end of an elongated running tool to t |
| 6913097 |
Transportation, storage, and installation system for rig utilities |
July 5, 2005 |
| A transportation, storage and installation device for rig utilities. The device includes a telescoping bridge having an outer frame assembly with an opening therethrough supporting a plurality of cables. The telescoping bridge also includes an inner beam assembly receivable within the ou |
| 6902007 |
Blow out preventer transportation |
June 7, 2005 |
| A blowout preventer transportation and installation system. The system includes a transportation skid assembly having a transport carriage to raise the blowout preventer between a horizontal transport position and a vertical position. The transport carriage on the skid assembly moves the |
| 6860337 |
Integrated mast and top drive for drilling rig |
March 1, 2005 |
| A process to lower or raise a drilling rig for transportation wherein the drilling rig includes a mast and a top drive. The process to lower includes the steps of moving the top drive within the mast with a vertical guide and torque reaction mechanism to a locked position and locking the |
| 6848515 |
Modular drilling rig substructure |
February 1, 2005 |
| A process to transport and assemble a drilling or workover rig substructure. The process includes the steps of transporting a driller side substructure section and an off driller side substructure section to a rig site so that the sections are spaced from and parallel to each other. |
| 3932974 |
Glazing system |
January 20, 1976 |
| A curtain wall construction designed for glazing from the inside of the building, with the rubber gasket on the outside of the building, using a T-shaped gasket which fits into an outside facing groove formed in horizontal and vertical members assembled to make a frame for a wall pan |
