Expandable phase change detector device

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United States of America Patent

PATENT NO 4274284
SERIAL NO

06140353

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An expendable phase change detector device is provided with an initial coating on the twisted wire forming the thermocouple junction which is, in turn, covered by a refractory coating during the manufacture of the device. The initial coating responds to an increased temperature to ablate the refractory coating from the thermocouple junction when molten metal is poured into the device.

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Patent Owner(s)

Patent OwnerAddress
L&N METALLURGICAL PRODUCTS CO6TH STREET & JAMISON AVENUE ELLPORT PA 16117

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hance, Richard J Philadelphia, PA 2 20

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