发明授权
US08142452B2 Controlling pressure in adjustable restriction devices 有权
在可调节限制装置中控制压力

Controlling pressure in adjustable restriction devices
摘要:
Methods and devices are provided for regulating a hydraulic restriction system including a restriction device. In general, the methods and devices can allow for non-invasive, transient pressure control. The methods and devices can also, in some embodiments, mechanically regulate pressure of the restriction device without using any electrical components that may need to be powered to operate over extended periods of time.
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