E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/77
E21B 10/10 (2006.01)
Patent
CA 1113923
TITLE OF THE INVENTION ROTARY CONE CUTTER A multi-cone roller bit with a central pot member is disclosed, having releasably secured legs carrying rolling cutters mounted on the pot. The legs have an upper position which can be releasably secured in a recessed central portion of the pot and an abutment region which contacts the pot. A tongue and groove arrangement holds the leg and pot from relative movement with one another, and a central tapered plug is reciprocably moveable so as to clamp and unclamp the leg to the pot.
353103
Gowling Lafleur Henderson Llp
Kennametal Inc.
LandOfFree
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