Mining nozzle with two ring latch
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United States of America Patent
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Jul 6, 2004
Grant Date -
Jun 6, 2002
app pub date -
Dec 4, 2001
filing date -
Dec 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elongate water spray nozzle (8) for use with mining equipment, comprises a cylindrical body member (9) having a leading end (10) and a trailing end (11), with a circumferential groove (12) provided in the body member (9) towards the trailing end (11), the groove (12) housing firstly an inner, resiliently deformable `O`-ring (13), and secondly an outer, split spring steel latching ring (14), the `O`-ring (13) being resiliently operable on the steel ring (14) to bias the steel ring (14) concentrically with the longitudinal axis (15) of the nozzle (8). The invention also includes a pick box (6) provided with nozzles (8). The invention also includes a pick box provided with a nozzle (8), and a rotary cutting head provided with a plurality of such pick boxes.
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