E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
E02F 3/88 (2006.01) E01H 1/08 (2006.01) E02F 3/92 (2006.01) E02F 5/00 (2006.01)
Patent
CA 2255387
The invention relates to apparatus (1) for transporting loosened soil from a hole, trench or excavation, comprising a probe device (2) and external nozzles (3) which are spaced from a distal end of the probe device and are directed towards the longitudinal axis of that probe device. Air pulsed through the nozzles (3) lifts the soil along the tube to a discharge chamber (6).
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Thames Water Utilities Limited
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