| 摘要 |
A dripper apparatus for a water spigot includes a coupler having a threaded female member for connecting to a water spigot. A generally cylindrical elongate member has a longitudinal portion in fluid communication with the female member. The longitudinal portion has an upper portion that defines a seat within the female member. A flow controller sits on the seat. A filter screen upstream the flow controller collects particles in water flowing therethrough so that the controller does not become clogged. The flow controller includes a housing that is provided with an upper inlet for receiving a first flow rate of water from a water spigot. The housing also includes a cavity therewithin and the cavity is in fluid contact with the upper inlet. A flexible membrane is housed within the cavity and floats when water enters the cavity via the upper inlet. The upper inlet is slotted at the top thereof for further filtering water flowing therethrough. When the flexible membrane floats within the cavity, sufficient water is allowed to flow therethrough for preventing the water from freezing. A generally cylindrical lower outlet is in fluid contact with the cavity for receiving and discharging a second flow rate of water therefrom which is substantially equal to the first flow rate of water entering the upper inlet.
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