Baths – closets – sinks – and spittoons – Pool type – Construction details
Reexamination Certificate
2006-05-19
2008-12-09
Huynh, Khoa D (Department: 3751)
Baths, closets, sinks, and spittoons
Pool type
Construction details
C004S598000, C004S493000, C004S506000, C004S545000
Reexamination Certificate
active
07461416
ABSTRACT:
A portable water heating system for use with a spa. The heating system circulates water from a spa, heats the water and returns the heated water to the spa. The portable heating system includes a housing that encloses a heater and a pump; a water intake hose; a water outlet hose; and a thermostat. The heating system may also include temperature-setting dials and flow and pressure regulating switches. A thermostat is also disposed within the portable spa heating system and is attached to the heater. The thermostat may be set to a predetermined temperature so that the heater, and therefore water temperature, may be controlled.
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Huynh Khoa D
Litman Richard C.
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