Device for removing drill hole debris

Patent · Tue Aug 31 04:00:00 EDT 1993

OSTI ID:6092628

Lyon, L H

A percussive, down-the-hole drill is described actuated by a mixture of pneumatic fluid and other matter comprising: (a) a backhead having a top end adapted for connection to a drill string and a bottom end removably connected to a top end of a down-the-hole drill casing, said backhead having a bore there through; (b) reciprocal piston means in said casing, for reciprocating back and forth; (c) drill bit means mounted in a bottom end of said casing, for receiving impact force from said piston; (d) first fluid passageway means in said drill casing, for transmitting percussive fluid to actuate said piston; (e) second fluid passageway means in said drill casing for transmitting exhaust fluid to remove drill hole debris; (f) separator means within said backhead, for separating said mixture into a first, pneumatic fluid component for actuating said drill, and into a second, heavier, exhaust component for removing drill hole debris, said separator means positioned between said top end of said backhead and said top end of said casing.

• Assignee: Ingersoll-Rand Co., Woodcliff Lake, NJ (United States)
• Patent Number(s): US 5240083; A
• Application Number: PPN: US 7-871424
• OSTI ID: 6092628
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
422000* -- Engineering-- Mining & Underground Engineering-- (1980-)
CUTTINGS REMOVAL
DESIGN
DRILL BITS
DRILL PIPES
DRILLING EQUIPMENT
DRILLING FLUIDS
EQUIPMENT
FLUIDS
MACHINE PARTS
OPERATION
PIPES
PISTONS
PNEUMATIC TRANSPORT
REMOVAL
SEPARATION PROCESSES
TRANSPORT
WELLS