Hydraulic hammer having a sealing bushing
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United States of America Patent
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Dec 26, 2006
Issued Date -
N/A
app pub date -
Feb 1, 2005
filing date -
Feb 2, 2004
priority date (Note) -
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Abstract
A hydraulic hammer having a sealing bushing includes a percussion piston that delivers strokes to a tool. A lower part of the percussion piston is sealed with respect to a frame by the sealing bushing, which includes one or more lower seals. The sealing bushing does not contribute to the bearing of the percussion piston and it is arranged in place through the lower end of the hydraulic hammer.
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