Fluid sprinkling – spraying – and diffusing – Distributor continuously moves relative to support during...
Reexamination Certificate
2006-03-07
2006-03-07
Hwu, Davis (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Distributor continuously moves relative to support during...
C239S232000, C239S246000, C239S249000, C239S569000, C239S583000, C239S554000
Reexamination Certificate
active
07007865
ABSTRACT:
A self-adjusting nozzle for use in injecting pressurized, and optionally pulsating, fluid into a well bore or other conduit for the purpose of cleaning out the bore or conduit, the nozzle having slidably engaged mandrel and tool tip sections, each with an axial bore, and the tool tip having a plurality of axially and circumferentially spaced discharge ports communicating with the axial bores, the mandrel being able to reciprocate inside the tool tip without operator intervention in response to obstructions encountered ahead of, around or behind the nozzle as it enters or leaves the well bore or conduit, thereby sequentially blocking or unblocking some of the discharge ports to direct more of the pressurized fluid against the obstruction.
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Dodd Rex A.
Hwu Davis
Locke Liddell & Sapp LLP
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