Abstract: An apparatus for providing pressure for a well fracturing operation is disclosed. The apparatus includes one or more docking areas for docking one or more pumping units to a pressure manifold wherein the one or more docking areas are operable to provide access between one or more pumping units, and a structure operable to enclose the one or more docking areas and pumping units. An apparatus for providing pressure for a well fracturing operation is disclosed. The apparatus includes one or more pumping units, a central fueling system connected to the one or more pumping units, a central power system connected to the one or more pumping units, a central lubrication system connected to the one or more pumping units, and a central cooling system connected to the one or more pumping units.

Abstract: A "3-lite" incandescent lamp structure is disclosed which is capable of being mounted in either a "base down" orientation or a "base up" orientation without damage to the internal glass button support assembly. A shield is provided adjacent to the glass button support assembly to minimize damage to the support assembly from the gaseous deposition products generated by the lamp filaments.