Device and method to cut piles

Patent · Tue Sep 06 04:00:00 EDT 1988

OSTI ID:6775250

Dysarz, E D

This patent describes an apparatus for severing a pile that is setting in a vertical or near vertical position, while the pile is still bearing its own weight of another structure, comprising: a guide tube, the guide tube having an outside diameter less than that of the inside diameter of the pile and the guide tube is adapted for movement up and down within the pile. The guide tube including frame members from which the guide tube may be lifted up or lowered down inside of the pile; a moveable guide plate mounted on the frame members and adapted for movement up and down relative to the frame members; a rotary actuator mounted on the guide plate, the rotary actuator having a shaft that rotates relative to the moveable guide plate; a double ended rod cylinder mounted on the frame members; a double ended rod of the double ended rod cylinder to move up and down relative to the frame members, with the top end of the double ended rod fastened to the shaft of the rotary actuator; a moveable foundation mounted at the lower end of the double ended rod, the moveable foundation to move up and down with the double ended rod relative to the frame members; at least two cutter stabilizer guide assemblies mounted on the cutter foundation and adapted to move opposite of each other relative to the cutter foundation; at least two cutter blade assemblies mounted on the cutter foundation and further mounted on each side of the cutter blade assembly, in the center is the cutter stabilizer guide assembly.

• Assignee: NOV; NOV-89-039259; EDB-89-030378
• Patent Number(s): US 4768899
• OSTI ID: 6775250
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
423000 -- Engineering-- Marine Engineering-- (1980-)
ACTUATORS
CUTTING
CUTTING TOOLS
DESIGN
FOUNDATIONS
MACHINING
MECHANICAL STRUCTURES
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
STABILIZATION
SUPPORTS
TOOLS
WELLS