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Match Document Document Title
7000627 Toilet safety valve  
An apparatus and method for ensuring that the flow of water to a toilet tank is shut off. The first preferred embodiment of the invention combines a conventional float mechanism to shut off the...
6629627 Level control systems for high purity chemical delivery systems  
A highly reliable digital level sensor assembly is provided to replace optical and capacitance type sensors in high purity chemical delivery systems. The digital level sensor assembly is...
6591860 Infinitely adjustable, low deadband, point contact pneumatic level switch  
A zero to 100% continuously adjustable, low deadband, point contact pneumatic level switch is used in conjunction with an electronic controller, a pneumatic-to-current converter and a...
6431201 Wet battery and vehicle-based water management system  
A water management system for a motor vehicle in which water is collected from the condenser ( 1 ) of the air-conditioning unit, stored in a master water tank ( 5 ) and distributed therefrom to the...
6082394 Closed type water storage container with water level controller and air filtering device  
A closed type water storage container with water level controller and air filtering device, wherein the closed type water container is linked to the water level controlling device by a connection...
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...
5660334 Remote control for electrostatic sprayer elements  
An electrostatic spray system has a high voltage section where an electric charge is applied to a liquid and the high voltage section is isolated from a lower potential section, such as a frame....
5607002 Chemical refill system for high purity chemicals  
A highly reliable digital level sensor assembly is provided to replace optical and capacitance type sensors in high purity chemical delivery systems. The digital level sensor assembly is...
5542499 Electromechanical oil level regulator  
An oil level regulator is provided for controlling the oil level in the crankcase of one or more refrigeration compressors or the like. The regulator has a closed chamber for containing the oil. A...
5365969 Float with skirt to prevent leakage due to oversudsing  
An improved float to prevent over-filling of a dishwashing machine including a cylindrical main float body, a skirt attached to the main float body and extending outwardly and downwardly therefrom,...
5339854 Conservation system and method  
An apparatus for conserving utilities including coolant, in a system having an evaporative cooler equipped with a water reservoir for holding a predetermined amount of cooling water and also...
5309939 Safety device for water-conducting household appliances  
A water-conducting household appliance includes a liquid container having a static content level, a fill control device, a cycle control unit, an inflow valve to be opened by the cycle control unit...
5290402 Automatic cold/hot distilled water fountain  
An automatic cold/hot distilled water fountain which automatically performs water boiling, condensing, storing and heating processes to provide purified cold/hot drinking water, mainly composed of...
5209254 Water and sewerage system for construction, and protection for the same  
A water and sewerage system for a construction, has at least one water consumer, at least one water supply pipe adapted to supply water from a water source to the water consumer, at least one water...
5072600 Wash column ice-pack bottom detection device  
Apparatus comprising a vessel capable of receiving a variable supply of an aqueous ice slurry in which an upper packed ice bed can float on an aqueous volume; a hollow conduit having a first end...
5018550 Dishwasher overfill protection device  
A dishwasher is provided with an improved apparatus for protecting the tub from being overfilled in the form of a float having a float stem that is automatically captured upon insertion through a...
4994211 Water distribution apparatus for evaporative cooling system  
Water control apparatus for evaporative cooling system includes a medium which is saturated with water from a water supply and water draining from the medium is directed to a pan or trough in which...
4940861 Liquid shut-off system  
The system is designed to shut-off the flow of liquid in a conduit, unattended, i.e., automatically, in the event of a liquid conduit rupture, liquid overflow, or the like. A float which carries a...
4936389 Fluid dispenser for an aircraft  
The momentary position, between open and closed, of a bottom door panel controlling release of fluid from an airborne container containing the fluid is governed by both the height of the fluid in...
4865073 Liquid level control for refrigeration system  
A liquid level control in a refrigeration system operates a solenoid valve to maintain the level of liquid refrigerant in a vessel within a range defined by predetermined lower and upper liquid...
4856288 Refrigerant alert and automatic recharging device  
A sensor for sensing the quantity of refrigerant in a closed loop refrigeration system, with the sensor having attachment means on a lower portion thereof such that it may be installed in direct...
4771804 Liquid level sensing and control assembly  
A liquid level sensor and controlling assembly disposed and mounted in direct communication with a reservoir of liquid to be monitored and including a float structure connected to an elongated stem...
4744808 Liquid level sensing and control  
A fluid flow chamber including a housing defining a chamber, a chamber inlet and a chamber outlet for flow of liquid therethrough, a float in the chamber, and a magnet and magnetic position sensor,...
4700738 Liquid level controller  
An improved liquid level controller having a housing, a body connecting from the rear of the housing for connecting directly to a vessel and to allow transmission of forces exerted by the displacer...
4688699 Bactericidal mixture control system having flow and dispense duration controls for respective substances  
A mixture control system for mixing a bactericidal chemical and water in a reservoir in batches. Flow of the water into the reservoir is initiated by a float actuated switch and the duration of the...
4687031 Valve control with mechanical memory  
A pair of flapper valves are mounted in parallel to control the flow of a fluid into a reservoir. The flapper valves are opened by a first rotatable cam which is rotated through one or more...
4655244 Float operated valve  
A float operated valve is provided with the rise of a float being temporarily prevented by the elastic force of a spring mounted on the valve body. When the buoyant force of the float reaches a...
4649898 Apparatus for controlling condensate level in steam retort  
Apparatus is provided for controlling the level of steam condensate in a steam retort wherein sealed cans of food are exposed to incoming steam. The apparatus comprises a pneumatically actuated...
4637425 Sewer check valve with cutting seat  
In place of one of the usual blunt seats, a sewer check valve has a knife-edge extending from one of the seats to eliminate holding of compressed, relatively tough chunks of sewage between seats by...
4607399 Automatic pool water regulator apparatus  
A pool water regulator has two vertical pipes which indicate the pool water level. Each pipe has a floating element disposed therein, and each float element has a switch secured to a distal end...
4597048 Digital flow regulation of liquid-level control for a continuous casting mold  
In a continuous casting apparatus, the level of liquid in the mold is monitored and compared to a desired reference level. A microcomputer examines the resulting error signal and determines the...
4365489 Cleaning liquid level regulator for dry cleaning machines  
A liquid level regulator for the solvent of a dry cleaning machine comprises a box-like body mounted within a cleaning chamber of the machine and having holes to allow the solvent to penetrate...
4336825 Liquid level control system  
A system for controlling the water level in a boiler, including a liquid level adjuster, conduits connecting the liquid level adjuster to the boiler through housings mounted on the boiler and...
4313566 Fluid balancing system for tank vehicle  
A spray tanker suitable for balanced operation while traveling on level, uphill or downhill grades having a vehicle body and a tank body supported thereon. The tank body comprises a forwardly and...
4271861 Dishwasher fill level control arrangement  
A dishwasher employing a float assembly positioned in a centrally located sump in close proximity laterally and vertically to a horizontally rotating circulation pump impeller inlet area for...
4259975 Stock tank gauger-level controller  
Liquid level in tanks is gauged an can be controlled as follows. Liquid communication is provided from near the bottom of the tank to a liquid reservoir containing a liquid which is of different...
4180095 Dishwasher float switch control assembly  
A float support includes a guide sleeve extending upwardly from a dishwasher chamber sump for slidable reception of a float stem. The support includes a hollow standpipe having an upper portion,...
4178957 Dishwasher fill system  
A dishwasher fill system providing a combination fill control system and timer fill sequence that assures a predetermined minimum quantity of water is present in the dishwashing chamber regardless...
4121618 Hydraulic ramping circuit for control valve  
A hydraulically actuated control valve normally includes a hydraulic cylinder which has an internal piston connected through a shaft to the actuating mechanism in the control valve. Ports are...
3966437 High pressure gas-liquid separator  
A pressure vessel adapted for connection in a high pressure gas line and having a coalescent type filter mounted to extract condensate; a vertical guide fitted with upper and lower magnetically...
3942526 Alarm system for intravenous infusion procedure  
An alarm system operative in conjunction with a venocylsis set which includes a drop chamber coupled to the output of a fluid bottle. The alarm system is provided with a float disposed in the drop...
3894555 Float switch assembly  
A float switch assembly for a dishwasher or the like includes a float positioned in the bottom of the dishwasher tub and having an elongated float stem extending through a hollow sleeve sealingly...
3857409 LIQUID MIXING APPARATUS  
An aspirating mixing apparatus wherein a first and second component of a given composition is mixed with water in desired proportions and deposited within a first reservoir tank, a third, fourth...
3822002 UNIBLOCK LUBRICATOR  
A lubricating apparatus having a cylindrical chamber with an axially movable piston therein. This piston is resiliently biased or driven by a compression spring to compress lubricant in the...
3765442 SYSTEM FOR CONTROL OF OIL WELL PRODUCTION  
A system for operating and controlling production of oil from a plurality of wells in which oil from the wells is passed to an oil and gas separator and a float switch mechanism is mounted in the...
3739405 WATER LEVEL MAINTENANCE DEVICE FOR SWIMMING POOLS  
A device for maintaining the water in a swimming pool at an established level, is disclosed. The subject device involves a water-level tank which has a fluid connection to the swimming pool such...
3717169 GAS SUPPLY SYSTEM APPARATUS  
An improved gas supply system for supplying nitrogen and/or oxygen or other gases to semiconductor doping systems via liquid, such as water, boiling in a flask in a manner whereby the supply of gas...
3707160 REMOTE STORAGE ARRANGEMENT FOR DISHWASHING TREATING AGENT  
Chemically active, liquid treatment agents are dispensed to a dishwashing apparatus which circulates liquid to cleanse soiled dishes from an intermediate reservoir at the dishwashing apparatus,...
3703716 AUTOMATIC TRANSMISSION FLUID REPLENISHMENT MEANS AND LEVEL INDICATOR  
An automatic transmission replenishment container and fluid level indicator having a tube inserted into the transmission fluid with an opening located below the normal fluid level, within, however,...
3619084 WATER SUPPLY AND PUMP FOR FOUNTAINS  
A water supply and pump for fountains is disclosed which includes a cylindrical container for holding the water supply, pump means for moving the water supply from the container to a fountain and...
Matches 1 - 50 out of 104 1 2 3 >