Water seal arrangement

Details Water seal arrangement Water seal arrangement

1999-03-03

2000-08-15

Lillis, Eileen Dunn

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

299 811, 299 812, 285 94, 277408, E21C 35187

Patent

active

061024856

ABSTRACT:
A water seal arrangement for use at a water transfer zone between a static member (2) and an associated rotary member (16) comprises a water delivery network (13) in the static member (2) including a water delivery port in fluid flow communication with a water receiving port of a water distribution network (12) in the rotary member (16), pairs of spaced-apart, circumferential seals (20) carried by the static or the rotary member (2 or 16), with each pair located to opposite sides of the ports (14), and in sealing engagement with a peripheral portion (22) of the rotary or static member (16 or 2); an oil supply network (27) to a zone (25) between each pair of seals (20), and an intensifier (30) to pressurize the oil of the oil supply network (27) to a higher pressure than the water pressure. Also, the water seal arrangement above includes a machine.

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patent: 5087082 (1992-02-01), Anthonsen
patent: 5098166 (1992-03-01), Ebner et al.
patent: 5114213 (1992-05-01), Kornecki et al.
patent: 5507565 (1996-04-01), LeBegue et al.
patent: 5690392 (1997-11-01), Clapham

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