Fluid handling – With casing – support – protector or static constructional... – Jacketed
Reexamination Certificate
2007-05-08
2007-05-08
Bastianelli, John (Department: 3753)
Fluid handling
With casing, support, protector or static constructional...
Jacketed
C251S121000, C251S310000
Reexamination Certificate
active
11012447
ABSTRACT:
A pressure reducing valve assembly for a high pressure oil well comprised of a hollow housing and a metering assembly disposed within such housing, such metering assembly comprising an entry liner having an entry bore, an exit liner having an exit bore, and a rotatable metering cam comprising at least one metering port that connects the entry bore to the exit bore. The metering port forms adjustable orifices with the entry bore and the exit bore, and effects the reduction of pressure within the metering assembly, thereby providing a variable choke of the fluid flow therein. The metering port is adjustable, and preferably replaceable with at least a second metering port by with a simple rotation of the metering cam.
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Bastianelli John
Greenwald Howard J.
Refraction Technologies Corporation
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