Bucket connection for a continuous excavating apparatus

Bucket wheel assembly

Bucket wheels and bucket wheel reclaimers

Bucket-wheel for bucket-wheel excavators or the like

Bucketwheel excavator

Buffered steam drive oil recovery process

Building of an underground structure, and structure so produced

Built-in rack apparatus

Bulged single-hinged scored rupture disc having a...

Bumping and jarring tool

Bundle type downhole guage carrier

Buoyancy device and method for using same

Buoyancy system for large scale underwater risers

Burn assisted fracturing of underground coal bed

Burner for igniting an injection well

Burner systems

Bushing for a drilling rig

Butterfly-type shim having semi-opened bottom and double...

Button drill bit structure

Button insert for rock drill bits