Compositions – Frost-preventing – ice-thawing – thermostatic – thermophoric,...
Reexamination Certificate
2006-04-11
2006-04-11
Ogden, Necholus (Department: 1751)
Compositions
Frost-preventing, ice-thawing, thermostatic, thermophoric,...
C252S071000, C252S076000, C252S079000
Reexamination Certificate
active
07025898
ABSTRACT:
A heating medium composition for suppressing deterioration of both a metal piping and a synthetic resin piping. The heating medium composition contains an antifreeze ingredient, water, a corrosion inhibitor, and a surfactant. The corrosion inhibitor includes a triazole compound, and the surfactant includes an anionic surfactant. A bag in a feeder provided in a given position along a circulation piping is filled with an oxidation inhibitor. By flowing a heating medium composition through the feeder, the oxidation inhibitor is gradually dissolved in the heating medium composition.
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Hamada Koichi
Higuchi Yuji
Ikawa Kazuhisa
Mizutani Masumi
Sagasaki Akihiro
Ogden Necholus
Osaka Gas Co. Ltd.
Sheridan & Ross P.C.
Showa Water Industries Co., Ltd.
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