Device for a turbidity sensor for a dishwasher or washing machine
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United States of America Patent
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-
Jul 1, 2008
Grant Date -
Nov 4, 2004
app pub date -
Apr 28, 2004
filing date -
Apr 29, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for preventing foam or air bubbles from accumulating in a measuring zone of a turbidity sensor connected in a wash-water circuit of a dishwasher or washing machine includes a main flow conduit and a bypass conduit connected to the main flow conduit. The bypass conduit includes a first conduit section branching off from the main flow conduit, a second conduit section leading back into the main flow conduit at a junction, and an enlarged region of reduced flow velocity connected upstream of the junction. The enlarged region provides the measuring zone for the turbidity sensor, and includes a curved baffle and a downward-facing bulbous protuberance opposite the baffle so as to form a backflow region. The measuring zone is located within the backflow region in the bulbous protuberance.
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