Hydraulic apparatus and hydraulic appliance usable therein
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United States of America Patent
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Jan 26, 2021
Grant Date -
Jul 6, 2017
app pub date -
Dec 31, 2015
filing date -
Dec 31, 2015
priority date (Note) -
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Abstract
A hydraulic apparatus includes a first valve manifold that provides a shutdown capability and a second valve manifold that provides an overspeed control capability. The hydraulic apparatus advantageously further employs a hydraulic appliance that includes a check valve and a bypass apparatus. The hydraulic appliance enables the second valve manifold to additionally provide as an alternative function a redundant shutdown capability, thereby obviating the need to have three separate valve manifolds.
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