Control valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8844899
APP PUB NO 20130048889A1
SERIAL NO

13696389

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A control valve includes a signal pressure passage that transmits a pilot pressure in first and second pilot chambers as a signal pressure of another device, and first and second connecting grooves that connect the first and second pilot chambers to the signal pressure passage when a spool is in a neutral position. When the pilot pressure is led into the first pilot chamber such that the spool moves, the first connecting groove connects the first pilot chamber to the signal pressure passage while the second connecting groove separates from the signal pressure passage. When the pilot pressure is led into the second pilot chamber such that the spool moves, the second connecting groove connects the second pilot chamber to the signal pressure passage while the first connecting groove separates from the signal pressure passage.

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First Claim

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Patent Owner(s)

  • KYB CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Takeshi Sagamihara, JP 112 673
Koshimizu, Tsutomu Sagamihara, JP 2 5

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