HYDRAULIC BREAKER WITHOUT BACK HEAD
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
Jun 27, 2022
filing date -
Jul 2, 2021
priority date (Note) -
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Abstract
A hydraulic breaker without a back head, includes a main control valve, to which fluid is supplied from the outside of the polyhedron, and accommodating a pilot valve for controlling the main control valve, in the interior space of the polyhedron, and in which impact force is obtained by double-acting cylinders, operated by the main control valve, moving modules that are connected to piston rods backwards and forwards, thus moving an integrated impact ram and ram block module forward, and filled compressed gas rapidly pulling back the integrated impact ram and ram block module.
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