E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 21/06 (2006.01)
Patent
CA 2300338
A trommel comprising a rotatable drum (2) supported on a plurality of rollers (16), each roller (16) being rotatably supported on an axle (30) fixed to a support structure of the trommel, a tungsten carbide sleeve (46) being disposed between the roller (16) and the axle (30) .
Murray Alastair Scott
Rawlings Peter Robert
Bereskin & Parr
Murray Alastair Scott
Qed International Limited
Rawlings Peter Robert
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