CHAIN SAW AND FLUID PUMP
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United States of America Patent
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Issued Date -
Oct 29, 2015
app pub date -
Apr 23, 2015
filing date -
Apr 29, 2014
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Abstract
A chain saw has a fluid pump. The fluid pump has a pump rod, a pump core assembly defining a pumping channel, and a pump body. The pump core assembly has an inner pump core and an outer pump core . The pumping channel is formed at least by a first hole defined in the inner pump core and a second hole defined in the outer pump core and the first hole is in communication with the inlet and the outlet. The pump rod is arranged to do a straight reciprocating motion in the pumping channel along a first axis so as to force fluid to flow from the inlet to the outlet by passing through the first hole.
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