Variable radial flow rate control system

Valves and valve actuation – Valve actuator is valve casing or extension thereof – Sleeve valve

Reexamination Certificate

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Details

C251S343000, C166S332200

Reexamination Certificate

active

11160251

ABSTRACT:
A variable radial flow rate control valve including a body forming a bore along the longitudinal axis thereof for transporting a fluid through the body, a fixed choke member fixedly positioned about the bore, the fixed choke member forming a fixed aperture, a rotational choke member rotationally positioned about the bore, the rotational choke member forming a rotational aperture radially corresponding to the fixed aperture, wherein a fluid passage is formed radially between the bore and the exterior of the body when the corresponding apertures overlap. The rotational choke member is rotatably, but not axially, moveable in relation to the fixed choke member between variable radial flow rate positions.

REFERENCES:
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patent: 6112816 (2000-09-01), Orzechowski et al.
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patent: 6880638 (2005-04-01), Haughom et al.
patent: 2004/0046143 (2004-03-01), Haughom et al.
patent: WO00/04274 (2000-01-01), None

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