| 摘要 |
A dual volume discharge apparatus for selectively discharging a full flush or a half flush of liquid from a reservoir, said discharge apparatus including: actuator means (1) selectively moveable from a closed position to either a full flush position or a half flush position, sealing means (11) moveable by said actuator means (1) from a closed position to either a full flush position or a half flush position, said sealing means being biased toward said closed position when in said half flush position, liquid outlet (17) which is sealed by said sealing means (11) to prevent flow of liquid out of said reservoir when said sealing means (11) is in said closed position and which allows flow of liquid out of said reservoir when said sealing means (11) is in the full flush position or the half flush position, stop means (21) co-operable with said sealing means and being biased towards position capable of holding said sealing means in said half flush position when said actuator means in said half flush position until a predetermined volume of liquid has been discharged from said reservoir and then allowing said sealing means (11) to move to said closed position thereafter.
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