Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Patent
1998-08-20
2000-02-08
Walczak, David J.
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
137409, 4353, F16K 3118
Patent
active
06021807&
ABSTRACT:
A water refilling control mechanism for a water tank comprises a main float sliding along an inlet pipe and further having an extruder located at the bottom thereof for connecting with an extension bar and further connecting to a supporting bar and a water valve on top of the inlet pipe. The main float further includes a dual-stair-shape valley atop to accommodate an auxiliary float having a restraint arm with its upper end connecting with a restraint cam located on top of the inlet pipe. By providing a C-shape end to the restraint arm connected engaging the restraint cam with an extruding arm, the auxiliary float can be restrained in the valley by a bump at the lower end of the restraint arm and can be rotated clockwise to release the main float as the water level reaching a substantial height. In the present invention, the main float is kept in the water by the auxiliary float atop while in the early stage of the water feeding process, for accumulating enough buoyant energy; until the auxiliary float is drifted away, the accumulated buoyant energy in the main float is suddenly released for generating a huge pressure rapidly to block the water valve for stopping the water feeding process.
REFERENCES:
patent: 3040769 (1962-06-01), Lamb
patent: 5205319 (1993-04-01), Chiang
patent: 5303728 (1994-04-01), Senatore
Horino Masahiko
Lai Sung-An
Hocheng Corporation
Walczak David J.
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