Heat trap

Liquid heaters and vaporizers – Stand boiler – And condition responsive feature

Reexamination Certificate

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Reexamination Certificate

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07093565

ABSTRACT:
A heat trap assembly for a hot water tank includes a heat trap insert and a sealing member retained by the heat trap insert. The heat trap insert includes a seat having an opening that is dimensioned to be covered by the sealing member when no water is flowing through the assembly. The heat trap insert also includes a plurality of fingers to retain the sealing member when water is flowing through the heat trap assembly.

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patent: 6269780 (2001-08-01), Hughes
patent: 6302063 (2001-10-01), Schimmeyer
patent: 6745723 (2004-06-01), Hicks et al.
patent: 6851395 (2005-02-01), Knaus
patent: 2004/0055544 (2004-03-01), Knaus

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