Class 137/411 - Single float controls plural valves

Subclass of Class 137 - Fluid handling
Definition: Apparatus in which a single float controls a plurality flow
No. of patents: 20
Last issue date: 02/16/2010

Number	Title	Issue Date
7661438	Water saver fill valve and assembly An improved fill valve has a pivot valve body that is pivotally suspended immediately below a float housing and is movable between two positions. In a first position, the pivot valve body blocks the flow of water from the float housing. In a second position, the piv...	02/16/2010
7334600	Priming apparatus for a centrifugal pump A vacuum assisted priming system for a fluid pump including a housing defining a hopper that communicates with a pump inlet. The housing mounts a first port that communicates with the source of vacuum and a second port that communicates with atmosphere. A check valv...	02/26/2008
7325565	Backflow valve The backflow valve of the present invention includes a valve housing having a cavity therein with an inlet and an outlet to the valve cavity. A switch is in communication with the valve cavity and is moveable from an off position to an on position in response to liq...	02/05/2008
7168441	Fuel cutoff valve A fuel cutoff valve of the invention includes a casing body having a valve chamber and a holder element, a float having a seat member on its top, a movable valve element that is fitted in the holder element in a vertically movable manner, and a first connection cond...	01/30/2007
6712944	Gas/liquid phase separator for electrolysis cell A gas/liquid phase separator for an electrolysis cell includes a vessel and a float in operable communication with each other. The vessel includes a fluid inlet and first and second fluid outlets. A fluid stream comprising gas and liquid is received in the vessel th...	03/30/2004
6076547	Device for operating a mechanism of a rinsing fixture The invention concerns a device for operating a mechanism (5) of a rinsing fixture, in particular for operating a closing and opening mechanism or a locking mechanism of a rinsing fixture. It shows a float (28) and a first hydraulic or pneumatic force mea...	06/20/2000
5511577	Air release valve The air release valve comprises a valve chamber (36) having an inlet (20) and an outlet (24). Inside the chamber is a control float (38) which is responsive to changes in liquid level in the chamber. There is also a a stack of valve members (40, 42, 44) i...	04/30/1996
5174345	Drop tubes and overfill valves therefor A drop tube employed in the discharge of fuel into a storage tank of the type having an inlet, riser pipe is described. The drop tube a tubular member and an overfill valve. The overfill valve comprises a valve member having open and closed positions whic...	12/29/1992
5088133	Flush mechanism for toilets A flush mechanism for toilets comprises a water supply control device and a water escape control device independently disposed in a flush tank. The mechanism is actuated to flush by raising a plunger to lift a piston of the water escape position from its ...	02/18/1992
5035346	United liquid-level and pressure regulator for separators The invention relates a combined liquid level and pressure regulator for separators, comprising a liquid level sensing float connected through a rigid vertical shaft with two discharge cross section controlling valves. The essence of the invention is that...	07/30/1991
4986320	Drop tube having an overfill valve A drop tube employed in the discharge of fuel into a storage tank of the type having an inlet, riser pipe is described. The drop tube a tubular member and an overfill valve. The overfill valve comprises a valve member having open and closed positions whic...	01/22/1991
4671317	Water supply systems A water supply system for supplying water at a substantially constant low pressure. The system includes a reservoir with an inlet for high pressure water and an outlet for lower pressure water. An equalising valve assembly is coupled to the inlet. The val...	06/09/1987
4615056	Flushing cistern A flushing cistern includes a flushing device which is located in a liquid-containing cistern. The device includes a hollow tube and a closure member carried by the tube. The tube can be moved in the cistern between open and closed positions in which the ...	10/07/1986
4535799	Automatic liquid shut-off valve A valve for incorporation in a gas line through which liquid entrained gas passes, positions a valve seat across the line and arranges a sump adjacent to and upstream of the valve seat. A spherical valve element of a specific gravity less than the entrain...	08/20/1985
4391673	Basementless separator system A basementless separator system for removing liquid from a liquid/gaseous mixture. The system includes a separator for separating the liquid and gas therein. A first conduit communicates the separator with the source of the liquid/gaseous mixture. A secnd...	07/05/1983
4312083	Water closet flush valve A flush valve for a toilet having a tank and a bowl including a valve housing connected to a source of water, a valve stem operatively connected to a float and a piston operatively connected through a cam to a flush lever, the valve stem and piston movabl...	01/26/1982
4209032	Air-relief valves An air-relief valve is described comprising a housing having a large orifice at its upper end for releasing or admitting air when filling or emptying the water line to which it connected; a float formed with an axial bore; a first valve member having a he...	06/24/1980
4173255	Low well yield control system and method A low well yield control system and method for preventing over pumping of wells and other fluid reservoirs. The control is positioned in the reservoir and includes a plurality of relief valves which are opened to replenish liquid in the reservoir from the...	11/06/1979
4034026	Multi-function fluid inlet valving means and reservoir means A fuel carburetor structure is shown having a main fuel bowl or reservoir with a second fuel reservoir therein; a fuel inlet valve assembly for controlling the rate of fuel flow to both the main and second or auxiliary reservoirs is shown as having a need...	07/05/1977
3960164	Device for mixing gases with liquids A device for mixing gases with liquids is disclosed, which is characterized by the use of gas inlet and vent valves of unique construction and highly efficient in operation, and the use of a unique toggle mechanism for opening and closing said valves whic...	06/01/1976

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Class 137/411 - Single float controls plural valves