Copper alloy water supply member

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7819992
APP PUB NO 20080286142A1
SERIAL NO

11922673

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A member for water works is proposed in which the content of lead is limited to a very small values while maintaining its mechanical properties, castability, machinability, pressure resistance, etc. to levels equivalent to those of conventional copper alloys containing lead.A copper alloy is produced which contains not less than 2.0% by weight and not more than 5.9% by weight of tin, not less than 1.5% by weight and not more than 5.0% by weight of nickel, not less than 5.0% by weight and not more than 12.1% by weight of zinc, not less than 0.4% by weight and not more than 3.3% by weight of bismuth, and not less than 0.009% by weight and not more than 0.15% by weight of phosphorus, the balance being copper and impurities.

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Patent Owner(s)

Patent OwnerAddress
KURIMOTO LTD12-19 KITAHORIE 1-CHOME NISHI-KU OSAKA-SHI OSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirai, Yoshimasa Osaka, JP 3 3
Maedono, Hiroaki Osaka, JP 1 3
Yamamoto, Masaaki Osaka, JP 144 1752

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