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    • 2. 发明公开
    • IMPROVED LIQUID LEVEL CONTROLLER
    • 改进的液位控制
    • EP1466223A1
    • 2004-10-13
    • EP02804665.4
    • 2002-08-26
    • BTB Wallercode SDN BHDChan, Pong Kit
    • CHAN, Pong, Kit
    • G05D9/02F16K31/34F16K31/385
    • F16K31/385E03D1/32F16K21/18G05D9/02Y10T137/7371Y10T137/7374Y10T137/7413
    • The present invention relates to a liquid level controller more particularly for maintaining the level of liquid preferably liquid in a tank, pool, reservoir, tub or the like at a predetermined height. An improved liquid level controller comprising:-a housing with an upper and lower section wherein liquid supply detachably joins the upper section and the lower section submerged within the liquid which level is to be maintained; the upper section includes a pressure chamber and an outlet chamber divided by a resilient material; a bore runs through the resilient material; an inlet tube extends from the supply to bore; the said outlet chamber joins an outlet tube within the lower section of the housing towards the outlet; hole provides liquid communication between the pressure chamber and the inner part of the lower section of the said housing; control valve controls the liquid flow through the hole; a control pin with one end attached to the control valve and the other to a displacer slidably mounted around the outlet tube which provides the force to open the control valve. The lower section of the said housing is provided a controller with a thread having one end tied to said controller and the other end through the said control pin to said displacer to adjust preferred liquid level.
    • 3. 发明授权
    • ADJUSTABLE FILL VALVE ASSEMBLY
    • 调节的充水阀
    • EP0929722B1
    • 2003-02-19
    • EP97945214.1
    • 1997-09-17
    • Lavelle Industries Inc.
    • NICHOLS-ROY, David
    • E03D1/32F16K31/34
    • F16K31/34E03D1/32Y10T137/3331Y10T137/6004Y10T137/7043Y10T137/7374Y10T137/7413Y10T137/742Y10T137/7442Y10T137/7446Y10T137/7449Y10T137/8049Y10T137/8122
    • An adjustable height fill valve assembly for controlling water level in a storage tank, comprises a lower riser assembly (12) comprising concentrically disposed inlet riser (18) and an outer riser housing (28), each having an upper end and a lower end, the inlet riser (18) and the riser housing (28) connected together at the lower ends, the inlet riser (18) being adapted for mounting in a hole in a flush tank, an upper riser assembly (14) comprising concentrically disposed inner supply tube (46) and an outer tubular valve housing (48), each having an upper end and a lower end, a main valve seat (50) at the upper end of the inner supply tube (46), the upper riser assembly (14) telescopically mounted on the lower riser assembly (12), a latch (58, 60) between the riser housing (28) and the tubular valve housing (48) for latching the upper (14) and the lower riser assemblies (12) in selected extended and retracted positions, the latch disengageable upon rotation of the upper riser assembly (14) in either direction from a central position, a valve housing cap (96) having a bayonet lock connection for quick connect detachable connection to an upper end of the tubular valve housing (48), a pilot operated main diaphragm valve (94) mounted in the valve housing cap (96) and engageable with the valve seat (50) for controlling flow of water into the valve housing from the supply tube (46), a pressure control chamber (102) in the housing cap (96) above the main diaphragm valve (94) in communication with the inlet tube, a vent port (110) having a vent valved seat (112) in the housing cap for venting the pressure chamber, a unitary float (134) and float arm (116) pivotally mounted on the cap (96) and having a vent valve member (114) mounted thereon for engaging the vent valve seat (112) for closing the vent port (110).