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US 5,052,060 AGranted
Flush water supply system for toilet stool
AssigneeToto Ltd.
InventorsAtsuo Makita, Hirofumi Takeuchi, Shinji Shibata, Noboru Shimbara
Life of this patent
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Abstract
A flush water supply system comprising a passageway valve mounted in a pipeline for supplying flush water to a toilet stool, and a control circuit for controlling the closing and opening of the passageway valve. A constant flow valve is mounted in the pipeline for keeping a predetermined amount of discharge flow, irrespective of water supply pressure.
Claims5
A flush water supply system for a toilet stool, comprising:
- (a) a pipeline means for supplying flush water to the toilet stool;
- (b) a constant flow valve mounted in said pipeline means for obtaining a predetermined amount of discharge flow, said constant flow valve including a water passage and means for adjusting the cross-sectional area of the water passage after the water supply pressure reaches a predetermined value;
- (c) a valve mounted in said pipeline means and electrically operable;
- (d) a starting-of-flushing input means for accepting an input for starting the supply of flush water;
- and
- (e) a control means for driving said electrically operable valve in response to the input for starting the supply of flush water, and for keeping said valve in an opened position for a preset period of time.
3 more elements
Dependencies are inferred from the claim text.