Filter regulator
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Aug 26, 2014
filing date -
Mar 20, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A filter regulator improved in efficiency of assembling and detaching a filter element and a valve spring at the time of maintenance is disclosed herein. A valve is disposed so as to face a valve seat provided to an opening end of a communication hole through which a primary port and a secondary port communicate with each other, and a valve spring applies a spring force to the valve in a direction of closing the communication hole. A plurality of retaining bars are provided to a port block, elastically-deformable front ends thereof are radially displaced between a closed steady state and an opened state, and with the valve spring disposed, engaging claws are provided to the front ends of the retaining bars, and engage with the other end of the valve spring disposed. A filter element is attached to the outside of the retaining bars.
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