Baths – closets – sinks – and spittoons – Shower
Reexamination Certificate
2006-10-10
2010-12-14
Huynh, Khoa D (Department: 3751)
Baths, closets, sinks, and spittoons
Shower
C004S661000, C004S597000, C004S598000
Reexamination Certificate
active
07849530
ABSTRACT:
The present invention relates to a household heat recovery device and more specifically to a wastewater heat recovery unit, which absorbs residual heat from the water flowing onto the floor and down the drain of an ordinary household shower or bathtub unit. In one embodiment, the heat recovery device adapts for ease-of-use and enables quick set-up in most existing and typical showers or bathtubs without any tools and without coupling to the existing plumbing. Internal passages direct the effluent shower water through a serpentine path to a discharge drain. Over time, the heat transferred from the water to the device then radiates into the environment—thus reducing the total energy cost for a household by reducing the thermal load on the main heating unit for the household.
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Haas Esquire LLC Peter A
Huynh Khoa D
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