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Document Title |
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7509974 |
Metallic ball for a ballcock
A metallic ball has a sliding sleeve, a shell, at least one magnet and a mounting bracket. The sliding sleeve has an open upper end, an open lower end and an outer surface. The shell is spherical,...
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7487793 |
Valve assembly with overfill protection device and capacitive liquid level gauge
A valve assembly, such as a tap for a liquefied gas cylinder, includes an overfill protection device and a liquid level gauge having an electrode assembly comprising a pair of lamellar electrodes...
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7237409 |
Steam cleaner with safety device
A safety valve mounted in a steam cleaner is provided. The safety valve comprises a cap assembly, an actuation assembly, and a lock assembly. A rotation of the cap is adapted to detach the cap...
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7207318 |
Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel
A method for operating a converter for the energy conversion of fuel from at least one main fuel supply, and from at least one auxiliary fuel supply for operating the converter directly and/or by...
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7171993 |
Beverage dispenser with automatic cup-filling control
A beverage dispenser for filling a container preferably has a nozzle through which the beverage is discharged and a pivoting lever located underneath the nozzle that detects the placement of a...
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7161492 |
Mechanical self-cleaning probe via a jiggler
A device, having a container for holding a fluid moving therein and a conductance probe installed therein for providing a conductance signal indicating whether it is in contact with the fluid,...
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7156116 |
Apparatus and method for operating a valve using a cushion filter
A method, system, and computer program are provided for operating a valve using a cushion filter. The method, system, and computer program receive a process variable signal associated with...
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7093611 |
Water feeder controller for boiler
A water feeder controller for a boiler monitors a low water cutoff sensor in a boiler and uses a feed timer to feed water to the boiler for a predetermined feed period of time. The feed timer...
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6964278 |
Non-invasive gauge glass liquid level sensor apparatus
An apparatus is disclosed for electronically and non-invasively sensing liquid level in a boiler or other liquid-containing vessel. The apparatus, comprising a sensor and sensor integrated circuit...
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6935367 |
Flotation cell fluid level control apparatus
A fluid level control apparatus for selectively controlling the movement of liquid flowing out of a flotation cell is described. The fluid level control apparatus is significantly reduced in size...
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6926028 |
Water feeder controller for boiler
A water feeder controller for a boiler monitors a low water cutoff sensor in a boiler and uses a feed timer to feed water to the boiler for a predetermined feed period of time. The feed timer...
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6910498 |
Liquid level controller
A liquid level control system for detecting and responding to changes in the level of liquid in a container. The system includes a transmitter in radio communication with a receiver, which is in...
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6877170 |
Toilet control system
A toilet water measuring and flow control system, including leak and overflow detection and prevention elements. The system has inlet and outlet flow sensors operably connected to inlet and outlet...
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6868861 |
Level control system for sheet casting process
A level control system for controlling the thickness of a work material in a slurry form cast upon a moving belt includes a fluid reservoir disposed above the belt, a sensor lens assembly for...
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6810902 |
Automatic water shut off system to prevent overflow of a plumbing device
A control circuit for a plumbing device that has a drain line and a water supply line includes a water sensor generating a potential overflow level signal in response to the water level in the...
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6782908 |
Automotive washer system utilizing a freezable washer liquid and a freeze-resistant washer liquid
A washer system which includes a first reservoir containing a freezable washer liquid and having a drain port therein. The drain port is in fluid communication with the freezable washer liquid when...
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6675826 |
Automatic flood prevention system
A flood prevention system includes a double-latching solenoid valve that shuts off a water supply line in response to a moisture sensor detecting a leak in a plumbing system. The double-latching...
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6671894 |
Toilet overflow control system
A toilet control system includes a sensor mounted on a bowl of a toilet near a top rim of the bowl and which is connected to a control valve unit which is fluidically interposed between a water...
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6598617 |
Cascaded variable bias feedforward and feedback flow and level control system
A control system for maintaining the liquid levels in a plurality of reservoirs connected in series includes one or more nested control modules. The nested control module, one for each reservoir,...
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6584997 |
Overflow prevention mechanism for liquid transfer systems
An overflow prevention mechanism for use in association with liquid transfer systems of the type including an electrically controllable flow control device such as a pump connected between a source...
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6546944 |
Fluid siphon outlet sensor system
In a system and method for sensing and controlling the level of a fluid in a tank, the system includes a fluid inlet, for enabling the flow of fluid into the tank, and a controller, for controlling...
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6523562 |
Plumbing flood control system
A control system for stopping a plumbing-related flooding situation in a building includes at least one sensor for accumulating water and producing a low voltage electrical control signal when...
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6427718 |
Automated farm turnout
An automated turnout system is provided for controlling water flow through a turnout gate. The system determines the water flow parameters of the open channel and adjusts the size of the gate...
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6325093 |
Water distributing installation controllers
A water distributing installation controller includes water pumps for supplying clear water from a filtration plant to a distributing reservoir, a level gauge for measuring the water level of the...
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6305406 |
Spray hood protector in a fluid-based cooling system
A spray hood device for containing a fluid spray leak in a fluid-based cooling system. A cover member surrounds a given component subject to a fluid spray leak, containing fluid sprays, preventing...
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6305404 |
Device for regulating the contents of a container
A device for checking the contents of a container (5) for a supply substance (8) that is not self-leveling. The device includes a stirring blade (2) that is rotatable about an axis of rotation (D)...
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6303024 |
Three batch fill/settle/draw electronic controller for use with a reverse osmosis unit
An electronic controller for controlling the fill, settle and draw operations of three settling tanks which are used with a reverse osmosis unit. The three settling tanks provide a pair of liquid...
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6266964 |
Use of electronic expansion valve to maintain minimum oil flow
A method of controlling an expansion valve including the steps of: measuring a primary system condition; determining an error in the primary system condition; measuring a secondary system...
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6263916 |
Tank system
In a tank system, in particular a fuel tank system, which comprises a tank (1) with at least one filling level transmitter (7, 8) and also a display (11) for indicating the filling level of the...
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6223359 |
Automatic water level system for swimming pools
An automatic water level system having a pair of micro-switches nested within a substantially cylindrically shaped primary housing having a first and second end for electrical lead lines. The...
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6223129 |
Apparatus and method for conductivity measurement including probe contamination compensation
A conductivity measurement system provides one or more DC pulses to first and second electrodes submerged in an aqueous solution such as, for instance, the wash water of an industrial dishwasher....
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6206025 |
Device and method for removing condensate from gas pressure systems
The present invention relates to a device for removing condensate from gas pressure systems, especially dry-pipe systems having a condensate collector in which condensate accumulates when the gas...
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6192321 |
Method of and apparatus for deterministically obtaining measurements
A diagnostic test unit for deterministically measuring one or more parameters, such as dead band, dead time, response time, gain, or overshoot, of a process control device that is connected in a...
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6178569 |
Toilet overflow control
A flow control device for a toilet to prevent flooding upon obstructing of a waste outlet of a toilet bowl. The device includes at least one sensor assembly mounted on a rim of a bowl of a toilet...
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6148838 |
Automated processing liquid drain system
The present invention discloses an automated processing liquid drain system that utilizes a series of processing liquid drain tanks and at least two waste collection tanks that are in fluid...
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6135133 |
Water-heater containment and warning device
A household appliance water leak detection and management containment wall made from one or more oblong pieces of water-resistant, shape-retaining, flexible sheet material such as aluminum. The...
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6125870 |
Overflow protection for a washing machine
Improved overflow protection for washing machines and other applications in which a liquid from a controllable valve fills a tub is achieved by a circuit in which a single pulse train generated...
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6095178 |
System for monitoring and controlling the level of a liquid in a closed container
A system for monitoring and controlling the level of liquid in a closed cainer includes a block for mounting at an upper end of the container, a lower level electrode for extending from the block...
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6082392 |
Dual hose assembly and control system for truck-to-truck fuel transfer
A hose assembly is provided for transmitting liquid fuel between the fuel tank of a highway truck and the fuel tank of an airport refueler. The assembly comprises inner and outer hoses. The inner...
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6058986 |
Beverage dispensing control
An electronic control for an automatic filling beverage dispensing valve is shown. The dispensing valve includes a valve body, a flow control mechanism and a solenoid. The valve further includes an...
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6049940 |
Control circuit for a liquid collecting device
A vacuum cleaner has an electric motor driving an air impeller for creating suction and a pump impeller which is located in the tank and draws liquid material from the bottom of the tank and expels...
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6024116 |
Valve assembly and acuator operative for automatically shutting off water and gas supplies to a hot water heater upon detection of a water leak
A valve assembly is operative for automatically shutting off both a water supply line and gas supply line to a gas-fired hot water vessel upon detection of water discharge, leak or overflow, from...
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6003536 |
Automatic water shut-off valve
An electrically actuated flow control device for use with an electrical household appliance includes a single body defining first and second flow passages. Inlet ends of the flow passages connect...
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5992447 |
Device for filling vinyl lined pools
A device for filling a swimming pool having a liner and a shell includes a water supply valve to control the flow of water into said swimming pool; a vacuum pump to evacuate air from the space...
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5992443 |
Valve system
A valve system for use in conjunction with a hot water heater where the water line to the hot water heater passes through the valve system which, when a leak is detected by an electrical sensor,...
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5975124 |
Water temperature and level regulator
A water outlet control system is provided including a water basin having a drainage port formed on a lower extent thereof and an open top with an upper peripheral edge. A water source includes a...
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5975114 |
System, method and apparatus for purging fluid
A system, method and apparatus for detecting a fluid leak in a fluid based cooling system and purging the fluid therein under various conditions. The system, method and apparatus detect fluid...
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5975102 |
Process and apparatus for detecting the limit level of liquids and bulk materials
In a process for the detection of the limit level of liquids and bulk materials in containers and pipelines, the change in the oscillation behavior of a sensor which is excited to oscillation is...
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5967175 |
Waste line stoppage detector and automatic water shutoff system
A waste line stoppage detector and automatic water shutoff system is utilized to prevent the overflow of raw sewage from a plumbing fixture. Electronic shutoff valves are electronically connected...
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5966311 |
Method of overfill probe identification and control
A fail-safe fluid transfer control apparatus has full redundancy in the response to various inputs such as overfill probe signals, ground detection signals, and the like. Independent microprocessor...
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