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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
PRINCE MINERALS INC	15311 W VANTAGE PARKWAY HOUSTON TX 77032

International Classification(s)

• C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....
• B22D:CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY ....

• 2010 Application Filing Year
• C04B Class
• 790 Applications Filed
• 575 Patents Issued To-Date
• 72.79 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Britt, James M	Birmingham, US	5	32
# of filed Patents : 5 Total Citations : 32

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• 0 Citation Count
• C04B Class

• 0 % this patent is cited more than
• 12 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent Application No: 2013/0001,839

METHOD FOR PROTECTING THE VALVE OF A MOLTEN-METAL LADLE AND FACILITATING FREE OPENING THEREOF

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Abstract

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Spout-filling compositions and a method for protecting and facilitating free opening of a spout valve of a ladle are disclosed. The spout-filling compositions may comprise an iron-based ilmenite sand. More particularly, the compositions may comprise ilmenite sand in combination with a quartz and/or carbon black and/or chromite and zircon. The compositions described herein may be placed in a ladle to insulate the valve from molten metal.

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Description

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