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7614412 Washer fluid spraying apparatus  
In the present washer fluid spraying apparatus, when the amount of the remaining washer fluid in the tank is reduced, the buoyant force of the float does not have an effect to the valve member, and...
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,...
7497229 Seal support system with discharging means  
A seal support system ( 1 ) for maintaining barrier fluid in a mechanical seal ( 2 ) including a vessel ( 10 ) for containing barrier fluid, a system for feeding barrier fluid between the vessel (...
7477059 Method to determine the contents level of a first fluid in a container and to determine a presence of a second fluid below the first fluid and level measurement apparatus to execute said method  
A level measurement device to measure the fill level of a fluid in a container, and a method to determine the contents level of a first fluid in a container and a presence of a second fluid below...
7189365 Liquid treating equipment including a storage vessel and a discharge vessel  
In a liquid treating equipment to maintain a small amount of liquid to a desired liquid level with constantly supplying an additional liquid into a small capacity vessel, a storage vessel 13 to...
7082962 Seal support system for maintaining barrier fluid pressure within a mechanical seal  
An intelligent seal support management system includes a device for automatically compensating for increased heat or decreased heat in a vessel.
7028700 Method and apparatus for level control in a water tank of a fuel reformer  
The present invention provides a method and apparatus for controlling a level in a receptacle capable of storing a fluid. The apparatus includes a first valve governing ingress of the fluid to the...
6938635 Level switch with verification capability  
The present invention comprises a novel level switch which may be employed to detect liquid levels within a process vessel. The level switch of the present invention is self validating so that...
6932097 Acoustic control of the composition and/or volume of fluid in a reservoir  
The invention provides a device for controlling the composition and/or volume of a fluid within a reservoir. The device includes a reservoir adapted to contain at least one fluid, a means for...
6845782 Multiple tank circulating fuel system  
An apparatus and method for the balancing of fuel among tanks in a circulating fuel system. The tanks in the system have both a draw conduit and a return conduit mounted to and extending into the...
6766614 Automatic liquid dispensing device with smart properties  
An automatic liquid dispensing device with smart properties. The automatic liquid dispensing device preferably includes a storage chamber, measuring chamber, and evaporation chamber. The...
6675398 Diverter for use with tank valves to direct flow to tank or rim  
A diverter valve for selectively passing water from a ballcock valve directly to a water storage tank or to the rim of a toilet. It includes a diverter plunger which places a deflector into the...
6644344 Method and apparatus for metering a flow rate of a fluid  
A method and apparatus for measuring the flow rate of a fluid based on the fluid weight. A container is provided between a fluid source and a fluid removal system. A valve is arranged between the...
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,...
6582563 Water purification system  
An improved portable water purification system with reduced leaks and the capability of automatic draining of its boiling tank, as well as to a method of preventing water spillage from a portable...
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...
6532984 Constant flow liquid supplier  
A constant flow liquid supplier includes a body having a cavity defined to contain liquid. An inlet assembly floats on the liquid surface and selectively opens the inlet of the constant flow liquid...
6502607 Fuel tank valve apparatus  
A fuel tank valve apparatus for use with a fuel tank. The fuel tank apparatus has an inlet neck defining a valve chamber, a valve housing positioned in the valve chamber, a valve positioned to move...
6422263 Nested and cascaded variable bias feedfoward and feedback flow and level control system  
A control system for maintaining the liquid levels in a plurality of reservoirs connected in series includes a parenthetical control module and one or more nested control modules. The parenthetical...
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...
6257287 Fuel fill pipe shut-off device  
A motor vehicle fuel fill pipe shut-off device includes a fuel shut-off valve normally closed relative to a valve seat and disposed in a path of fuel flow through the fuel fill pipe of the motor...
6253781 Process for controlling the level of an ammonium fluoride-containing acid solution in an acid vessel  
The present invention provides a process for controlling the level of an ammonium fluoride-containing acid solution in an acid vessel. First, a tube provided with at least one hole in the sidewall...
6209570 Automatic flush valve  
An automatic flush water distribution system for use in an evaporative cooling system includes a water distribution pipe adapted to be connected to a source of pressurized water. The pipe has a...
6202677 Multi-functional cleaning and filtering system for aquarium tank  
A cleaning and filtering apparatus and method for a tank such as an aquarium. The major components are an inlet water controller, a suction unit, and a filter container unit. The filter container...
6185760 Liquid flow control tap with inexhaustible energy-operated valve  
A tap used for controlling the flow of liquid, such as water, oil, or gas, is disclosed. The liquid control tap of this invention has a valve capable of being effectively operated using...
6148852 Sump pit regulating valve  
A valve assembly that is composed of simple parts is described that is used to provide a sump pit water control device that operates due to the level of water within the sump and not by...
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...
6129110 Fluid level management system  
A fluid level management system for controlling a fluid level contained within a reservoir housing is described. The fluid level management system utilizes two separate predetermined fluid levels,...
6092547 Double funnel float valve  
A combination valve and trap device is described for use in liquid supply and liquid disposal systems. Floats of various size, weight and shape are encased in cylindrical housings with inverse...
6062253 Apparatus for the intermediate storage and controllable release of a predeterminable quantity of water  
An apparatus is described for the intermediate storage and control or release of a predeterminable quantity of water, wherein the predeterminable quantity of water is replenished, each time it has...
6012481 Constant-level fluid supplier  
A constant level of fluid (8 or 106) in vessel (1 or 104) is maintained using a reservoir (5 or 102) and a tank (4 or 101). Float valves (9 or 107) which raise and lower with the level of fluid in...
6000425 Automatic remote fluid level controller  
A device comprising a chamber (10) with a maximum fluid level (14) established by an internal drain pipe (62) directing excess fluid to a point of disposal (44) and an internal replenishment fluid...
5941417 Fill system equipped with apparatus for continuous controlled inflow to a balance tank  
A system to be utilized at a dairy in the distribution of a pumpable food product from a storage tank to a filling machine for dispensing into containers. The system includes a balance tank for...
5920920 Straight trap toilet apparatus  
A straight trap toilet apparatus mainly comprises a main body with a straight trap, a piston, and a toilet bowl. The water outlet of the main body is connected to a waste pipe, and the top of the...
5857624 Windshield washer nozzle with drain port  
A windshield washer nozzle with a drain port is disclosed. In the nozzle with liquid inlet and outlet ports, a partition wall is formed in the middle portion of the passage between the two ports,...
5771178 Fail-safe fluid transfer controller  
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...
5726404 Valveless liquid microswitch  
This invention provides a valveless method and apparatus for high speed switching of liquid flow between intersecting microchannels. Liquid flow is controlled by manipulating external driving...
5715856 Liquid flow control apparatus  
A liquid flow control apparatus (5) suitable for handling milk from a milking machine, comprising a first chamber (10) that comprises an inlet (11) for the milk, an outlet (12) for connecting to a...
5701862 Method and apparatus for replenishing the lubricating oil of an internal combustion engine  
A method and apparatus for replenishing the lubricating oil of an internal combustion engine involving, during operation of the engine, continuously supplying a predetermined quantity of new oil...
5652970 Toilet water reservoir water dumping valve for sealing the reservoir's water outlet by hydraulic pressure, and controlling water volume  
A toilet reservoir water dumping valve for sealing the reservoir's water outlet by hydraulic pressure and for controlling the water volume to be flushed. The dumping valve is situated in the toilet...
5653255 Sewage treatment system  
A sewage treatment system includes a pair of substantially identical unitary fluid treatment modules, each module having a central sedimentation tank surrounded by a peripheral wetland. The...
5608924 Consistent delivery flush and fill system for a tank  
A consistent-delivery flush and fill system for a water tank. A vertically movable post with a central passage carries a valve plug to open and close a valve seat for a discharge port from the...
5519638 Automatic system for monitoring and replenishing hazardous liquids in tanks  
An automatic system is disclosed which monitors and replenishes hazardous liquids in their holding tanks, as such liquids are typically used in manufacturing processes. The inventive system and...
5516423 Variable residence time treatment system  
A variable residence time treatment system for liquid has a reactor vessel with variable effective holding volume. Liquid is admitted with at least one treatment material to adjust a property of...
5511950 Vacuum pumps for recovering condensates from steam-using apparatus  
A condensate recovering vacuum pump uses the condensate in a condensate tank as the boiler feed water. A circulating pump supplies the feed water to the feed-water ejection nozzle of a jet pump....
5179739 Water conserving toilet assembly  
A toilet flushing apparatus designed to prevent excess loss of water that may happen when the flush valve stays open as the inlet valve is putting water into the tank. The initial flushing lifts...
5121768 Moisture sensing valve  
A valve apparatus in which moisture sensitive material controls the opening size of a water valve. The moisture sensitive material is placed in an evaporative pad of an evaporative cooler. As the...
5121770 Hydraulically controlled valve for a cool tower and the like  
A valve operating on hydraulic pressure for the control of water being deposited onto evaporative pads located on a cool tower. The valve utilizes water flow to fill a basin or tank which is slowly...
5053111 Method and apparatus for the batch distillation of water  
A method and apparatus for automatically and sequentially distilling batches of water having substantially equal volumes in a plurality of distillation cycles, one batch in each cycle. During each...
5047129 Unit for the treatment of electrophoretic strips  
A unit for the treatment of electrophoretic strips mounted on a frame comprises at least one pair of basins (10a, 10b) and a feed, forced circulation and emptying circuit comprising as many tanks...
Matches 1 - 50 out of 182 1 2 3 4 >