Matches 51 - 100 out of 411 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
5954078 Method and apparatus for handling liquid chemical waste  
A buffer tank and pre-wetting apparatus prevent a liquid chemical waste from crystalizing on the inside walls of a drain pipe that carries the waste to a waste tank. The pre-wetting apparatus...
5911250 Filling adapter for a metering device  
A filling adapter is provided for connecting a reservoir filled with a liquid with a metering device, which filling adapter has a liquid-specific connection piece for the reservoir. A code device...
5904169 Apparatus for and method of treating substrate  
An apparatus for treating a substrate with a predetermined treatment liquid includes: a first storing portion for storing the treatment liquid; a supplying device for supplying the treatment liquid...
5901740 Continuous extended holding tank with variable resident time  
A tank for holding a liquid for a predetermined and relatively long time in a continuous flow process. The tank includes an inner compartment with an inlet and an outer compartment with an outlet....
5873357 Two piece humidifier for hot air furnace  
A humidifier for a hot air furnace is disclosed which has a housing with at least one open outlet to allow steam to enter the furnace. The housing also contains a heating device, water refill pipe...
5871028 Photoresist solution storage and supply device  
A photoresist storage and supply device. The device includes a control unit for generating a number of on/off signals. A number of gas supply valves are open to let gas pass according to the on/off...
5857482 System for control of fluid vessel overflows  
An overflow control system includes a vessel having a liquid input and output, the vessel having a top and bottom defined by the gravity vector. The system further includes a housing peripherally...
5842347 Method and apparatus for monitoring the level of liquid nitrogen in a cryogenic storage tank  
A monitoring apparatus is provided for use in cryogenic storage tanks. The monitoring apparatus is a combination cap and monitoring system. The monitoring system includes a sensor which is...
5841355 Optimum electrolyte level sensing method and the automatic topping up apparatus for storage wet cell  
The optimum electrolyte level sensing method and the automatic topping up apparatus for storage wet cell are disclosed. The difference in the conductivities between the distilled water and the...
5841028 Automated liquid-level vessel apparatus  
The invention relates to a vessel apparatus for holding and transferring liquids, in which the level of liquid may be controlled and monitored automatically. A depth sensing device, included in the...
5783155 Sheet flow fluid sampling apparatus  
An apparatus periodically samples fluid flowing across a surface by providing a plate for mounting flush with the surface. The plate has an aperture extending there through and a tubular body...
5771917 Sanitary aseptic drain system  
A buffer system for separating an aseptic fluid handling assembly from a drain includes a fluid receiving housing in fluid flow communication with a fluid discharge outlet of the aseptic fluid...
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...
5713214 Level control machine for producing and dispensing cooled beverages or water-ice  
A machine for cooling and dispensing a product substantially behaving like a fluid, such as beverages or water-ice, comprises a base (11) and a tank (12) for treatment of the product to be...
5694962 Method for controlling a water supply valve of a washing machine  
A method for controlling a water supply valve of a washing machine uses an interrupt signal supplied from an interrupt signal generating section to an external interrupt terminal of a microcomputer...
5694974 Fluid level detection system for ink in a printing press  
A fluid level detection system (50) for ink in a printing press (10) having a vessel (58) having walls (60) defining a chamber (62), an elongated rotatable shaft (64) in the chamber (62), a motor...
5671603 Apparatus for controlling level of cryogenic liquid  
An apparatus for controlling level of cryogenic liquid in a vessel includes a transfer duct to a pressure supply tank. Pressure pulses are applied to the tank at one rate when the level is below a...
5661462 Bath overflow alarm  
A bath overflow alarm comprised of a housing having a pair of slots formed through a lower end thereof. The housing has a waterproof battery chamber therein for active receipt of a battery. The...
5655379 Refrigerant level control in a refrigeration system  
A refrigeration system includes a phase separator disposed in flow communication with a pulse width modulated solenoid valve. A thermistor is disposed in the phase separator and is submerged in...
5588461 Hazardous material containment system  
A system is provided for containing material leaks which occur while a shipping container is being loaded or unloaded. The system includes portable dome that is placed on top of a shipping...
5550532 Method and device for containing fuel spills and leaks  
A device and method for containing spills and leaks from fuel handling equipment is provided in which differential sensing means detect the presence of hydrocarbons and nonhydrocarbons such as...
5546926 Whole house humidifier for use with hot air heating systems  
A hot air furnace humidifier has a heat chamber and a duct connecting the chamber to a furnace. The chamber has a water retaining vessel, preferable provided with a disposable liner. A pair of...
5493922 Liquid level sensing probe and control circuit  
A method and apparatus for a liquid level sensor control circuit of a bioassay apparatus for controlling a position of a sampling probe with respect to a surface of a liquid in a container. The...
5484522 Automatic oil spill containment system with thermal dispersion control  
A system for automatically preventing the discharge of spilled oil from electrical distribution substation equipment into streams or ground water. The system utilizes a containment basin, sump,...
5460007 Ice level sensor for an ice maker  
An ice level sensor includes three capacitive plates for sensing the level of ice cubes in an ice tray or ice bucket. The ice level sensor preferably includes a relay for turning off the ice maker...
5427136 Fluid level detection system  
A liquid level detecting device having an overflow reservoir, a flow restriction means and a level detecting means. The reservoir defines a cavity for collecting an electrically-conductive liquid...
5411052 Liquid supply apparatus  
Liquid supply apparatus is disclosed for controlling the supply of liquid to humidifier apparatus. The liquid supply apparatus has a chamber with an inlet through which a liquid such as water is...
5402112 Liquid level and temperature monitoring apparatus  
An apparatus is provided for use in monitoring the level and temperature of a liquid flowing through a horizontally extending line that is to remain full of liquid, wherein the temperature of the...
5372456 Irrigation control structure  
An irrigation water control gate for controlling the amount of water delied downstream. The gate includes a frame and a pair of panels in the frame hingedly connected at adjoining horizontal side...
5365617 Retrofit swimming pool water leveler and method  
A system for automatically maintaining a desired water level in a swimming pool, includes a float chamber coupled in fluid communication with a suction tube that is coupled between the pool and a...
5355122 Rainfall detection and disable control system  
Disclosed in a Rainfall Detection and Disable Control System which provides detection and a visual display of both a trace level and a variable accumulation level of natural rainfall. The dual...
5337779 Automatic drain device  
An automatic drain device in an air compressor system includes an electrode sensor in a liquid collection cell. An electronic control detects an electrical change in the electrode sensor resulting...
5337777 Automatic sprinkler control override apparatus  
An apparatus (10) for controlling an automatic timer regulated sprinkler system; wherein, the apparatus (10) comprises a float member (60) disposed within a multi-stage screen member (30) secured...
5323620 Air conditioners  
An air conditioner condensate sump pump controller comprising a self heated PTC resistor located in the sump including an ambient compensation circuit. When the condensate reaches the resistor...
5313876 Spaghetti cooking system  
A pasta cooking system including an automatic control which permits a cooking vat containing water to be automatically filled to a predetermined level in response to turning the system on,...
5309403 Modular continuous flow paint delivery system  
The system includes a first module having a paint mixing and storage tank at a list location remote from any paint application point of use. The first module includes a remote pump for delivering...
5305779 Method, system, and apparatus for operating large power generating stations with improved environmental protection measures  
A system for containing oil in a containment tank received from a transformer bank for a hydroelectric power generating station. A capacitance proximity sensor is mounted at a predetermined height...
5303557 Method and apparatus for determining the phase of a fluid  
A method and apparatus for determining whether a fluid, such as a refrigerant, is a liquid or a gas. To determine whether the fluid at a predetermined level (14) of a storage container (20) is a...
5294916 Water treatment controller for an evaporative condenser  
An apparatus controls the treatment of water that flows through a cooling system. The electrical conductivity of the water is sensed. A valve control opens a system drain valve when the sensed...
5293896 Arrangement for measuring the level of liquified gases  
A semiconductor sensor detects the existence of liquified gases by immersion or approaching the liquid. A high signal amplitude of the sensor permits a simple signal evaluation of high reliability....
5289846 Automatic liquid replenishing system  
An automatic water replenishing system is designed for use with multiple dye vats used for tinting eyeglass lenses, but the broad principles of the invention could apply to other systems used for...
5275951 Liquid level sensing method and device  
An apparatus is provided which includes a reaction cartridge having a plurality of reaction wells having different reagents disposed thereon, at least one well adapted to receive a sample, a well...
5271375 Monitoring of gas flow  
A gas flow detection device having an inlet for connection to a source of gas and an outlet for connection to a gas-using appliance is disclosed. Gas for feeding a pilot flame of the appliance...
5247710 Reservoir level control system  
An automatic sensor system for detecting and adjusting a level of contents held within a reservoir is disclosed. The system has a sensor probe having a probe housing with opposing ends, an interior...
5247973 Marine vessel water tank filler  
Apparatus for controlling water supplied to a storage tank which comprises housing means for transferring water from a pressurized supply to a storage tank and having an extended portion adapted to...
5241978 Automatic sprinkler control override system  
An apparatus (10) for overriding an automatic timer controlled sprinkler system (100); wherein, the apparatus (10) comprises a float member (60) disposed within a two stage screen member (30)...
5224445 Boiler water liquid level control  
A liquid level control principally for boiling water boilers sensitive to the presence or absence of liquid at an upper and at a lower control level. The control enables the boiler to be fired when...
5216288 Water level control circuit for sump pumps and the like  
A control circuit for a sump pump or other pump that controls the liquid level in a vessel. The liquid is maintained between upper and lower levels defined by probes in the vessel. The probes are...
5207251 Liquid level sensing method and apparatus  
An automated liquid holding tank and method for automatically filling a liquid holding tank. The tank comprises a holding tank with dispensers for filling the tank with liquids and a pressure...
5188143 Water leakage detection device  
A water leakage detector is disclosed herein sensitive to the presence of moisture, having an elongated sensor strip comprising a pair of conductors separated by insulation. Each conductor includes...
Matches 51 - 100 out of 411 < 1 2 3 4 5 6 7 8 9 >