Mechanically fastened center vacuum roof drill bit
Patent
·
OSTI ID:5310258
A center vacuum roof drill bit is described comprising: a body having an axis of rotation, a seat transverse to the axis of rotation, a periphery and a forward working end; at least one flat-like insert positioned on the seat; means for releasably clamping the insert; the means clamping the insert near the periphery of the body and the clamping means comprising two pairs of oppositely facing walls intersecting the periphery, each pair of walls being diametrically opposed from the other, one wall of each pair of walls extending axially forward from the seat and the other wall being a planar face of a wedge having a rearwardly tapering locking angle, the wedges being adjacent to the seat.
- Assignee:
- Kennametal, Inc., Latrobe, PA
- Patent Number(s):
- US 4603751
- OSTI ID:
- 5310258
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two-prong rotary bit, especially for use with roof drills, and insert therefor
Roof bit
Rolling cutter drill bit
Patent
·
Mon Nov 04 23:00:00 EST 1985
·
OSTI ID:5848236
Roof bit
Patent
·
Mon Jan 07 23:00:00 EST 1985
·
OSTI ID:5543183
Rolling cutter drill bit
Patent
·
Tue Apr 14 00:00:00 EDT 1987
·
OSTI ID:6591228
Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DRILL BITS
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
FABRICATION
FASTENERS
FASTENING
INCIDENCE ANGLE
JOINING
MOTION
NATURAL GAS WELLS
OIL WELLS
ROTATION
WALLS
WELL DRILLING
WELLS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DRILL BITS
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
FABRICATION
FASTENERS
FASTENING
INCIDENCE ANGLE
JOINING
MOTION
NATURAL GAS WELLS
OIL WELLS
ROTATION
WALLS
WELL DRILLING
WELLS