Liquid heaters and vaporizers – Cleaning – Fluid jet
Patent
1983-03-24
1984-05-01
Favors, Edward G.
Liquid heaters and vaporizers
Cleaning
Fluid jet
15316R, 122382, F22B 3752
Patent
active
044454651
ABSTRACT:
A sludge cleaning lance advancing apparatus includes a frame having a lead screw rotatably disposed in the frame. An electric stepping motor is connected to the frame and a belt and pulley drive is connected between the stepping motor and the lead screw for rotating the lead screw upon rotation of a shaft of the stepping motor. A lance carrier has an internal screw thread engaging the lead screw, and the lance carrier and lead screw are so arranged and constructed that the lance carrier is moved longitudinally relative to the lead screw as the lead screw is rotated relative to the lance carrier. A lance is carried by the lance carrier. A handwheel is attached to the lead screw for manually rotating the lead screw to initially position the lance. An alignment rod is provided to aid in this initial positioning.
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Byrd Audis C.
Pattison, Jr. William W.
Todd Bradley L.
Beavers Lucian Wayne
Duzan James R.
Favors Edward G.
Halliburton Company
Weaver Thomas R.
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