Earth boring device
Patent
·
OSTI ID:6318133
A roller cutter assembly for rotary boring of the face of earth formations comprising a boring head and a plurality of roller cutters mounted in mounting members. The bearing shafts of the roller cutters are secured to the mounting members by members of clamping bolts. For purposes of eliminating the risk for failure of the clamping bolts to occur the mounting members are provided with a cap portion.
- Assignee:
- Santrade Ltd. (Switzerland)
- Patent Number(s):
- US 4448271
- OSTI ID:
- 6318133
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
CUTTING TOOLS
DESIGN
DRILLING
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
FAILURES
FASTENERS
INCIDENCE ANGLE
MACHINE PARTS
MECHANICAL STRUCTURES
MOTION
ROTARY DRILLING
ROTARY DRILLS
ROTATION
SHAFTS
STRESSES
SUPPORTS
TOOLS
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
CUTTING TOOLS
DESIGN
DRILLING
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
FAILURES
FASTENERS
INCIDENCE ANGLE
MACHINE PARTS
MECHANICAL STRUCTURES
MOTION
ROTARY DRILLING
ROTARY DRILLS
ROTATION
SHAFTS
STRESSES
SUPPORTS
TOOLS