Height-adjustable washstand
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United States of America Patent
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Nov 12, 2002
Grant Date -
N/A
app pub date -
Nov 20, 2001
filing date -
Jul 24, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a height-adjustable washstand comprising a cylinder 20 containing a piston 21 integrally coupled with a lifting rod 22 which can be moved by water pressure in a vertical direction, and a compression spring 23; solenoid valves SA, SB for simultaneously controlling an amount of water supplied through a water supplying pipe 31 branched from and flexibly connected to a water main 11, and an amount of water discharged through a water discharging pipe 32; and booster tanks DA, DB for moving the piston 21 of the cylinder 20 in a vertical direction by means of water pressure that is provided by the operation of solenoid valves SA, SB.
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