A - Human Necessities – 47 – J
Patent
A - Human Necessities
47
J
65/9
A47J 31/00 (2006.01) A47J 31/10 (2006.01) A47J 31/56 (2006.01)
Patent
CA 1056613
JOHN C. MARTIN AUTOMATIC COFFEE MAKER WITH INLET WATER CONTROL MEANS IN RESPONSE TO COLD WATER AND HOT WATER LEVELS Abstract of the Disclosure Cold water is supplied through an inlet water line from a source under pressure to a cold water basin from which it is siphoned to a hot water tank therebelow. The hot water is siphoned out of the tank for brewing coffee extract. A valve in the inlet water line is closed when the level of the cold water in the basin engages a probe or collar the elevation of which can be adjusted. Under conditions of low water pressure the siphon to the tank may start before the shutoff level in the basin is reached. Water may continue to flow without that level being reached. The level of the hot water then rises above the siphon out level of the hot water siphon and engages a probe resulting in closure of the valve to prevent further flow through the hot water siphon and overflow of the tank. Should the level of the water in the basin rise above the shutoff level, a float switch is opened to close the valve.
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