Double-ended liquid line thermal insulator

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United States of America Patent

PATENT NO 4562861
SERIAL NO

06629643

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Abstract

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Thermal conduction through a liquid line is deterred when liquid is not flowing through it by lodging a double-acting spring-centered plunger in a constricted section of a passage connecting opposite ends of a barrel in the line. Such plunger can be displaced from the passage constricted section in either direction to a passage expanded section automatically by pressure of liquid in the line resulting from opening a valve in the line.

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Patent Owner(s)

  • PAYTON; JAY O.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Payton, Kenneth J Snohomish County, WA 2 25

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