Matches 101 - 150 out of 542 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
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...
6078280 Periodic probe mapping  
A method and apparatus for processing a time domain reflectometry (TDR) signal having a plurality of reflection pulses to generate a valid output result corresponding to a process variable for a...
6058776 Conductivity metering device  
The present invention is for a conductivity metering device. The invention is primarily for conductivity meters which are used for level gauging of fouled liquids where the fouling materials may...
6046623 Signal detecting circuit  
Between a reference voltage point and the emitter or the source of a transistor of which the collector or the drain is connected to a power source and to which an signal is input at its base or its...
6040776 Collection of process effluent  
Described herein is an alarm system for use with a `bag-in-box` arrangement (10) which is used to collect effluent from a processing apparatus (20). The alarm system comprises a chamber (50)...
6026837 Automated chemical drain system  
The present invention provides an automated chemical drain system which includes a buffer tank for collecting used chemical from a process machine, at least two level sensors in the buffer tank for...
6014894 Motor sensor system  
A sensor system for detecting the presence of water in a sealed oil chamber of a marine engine, and for providing a warning signal in response thereto. A sensor assembly surrounds the propeller...
6005483 Electronic pump switching system  
An electronic pump switching system comprises a water sensor coupled to a comparator which generates an output signal when water is sensed. The comparator output is coupled to a timer, which is...
5969620 Water level alarm  
A DC powered water/moisture monitor suitable for use in combination with a Christmas tree stand to detect a low water/moisture level is provided. The alarm device set forth has application in many...
5969618 Failure sensor hose  
A hose capable of carrying current to an indicator which provides external warning of imminent failure, or leak, due to wear occurring within the hose. The hose consists of an internal (primary)...
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...
5942980 Multi-sensor hydrostatic gauge for fuel storage tanks  
A probe rod is provided with sensor housings, pipe sections, and joint sleeves all having a common outer diameter. The sensor housings and joint sleeves are threadably connected to the various pipe...
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....
5903223 Humidifier control system  
There is provided a humidifier control system including a water reservoir having a top opening. A pair of wicking pads extend into the reservoir and around a tube which extends over the top...
5898374 Sump alarm with radon detection  
A galvanic cell is formed when ground water within a sump reservoir, tub or other pool, rises to contact electrodes constructed of dissimilar metals, the electrodes mounted in a bridge, with...
5884231 Processor apparatus and method for a process measurement signal  
A method and apparatus for processing a time domain reflectometry (TDR) signal having a plurality of reflection pulses to generate a valid output result corresponding to a process variable in a...
5881762 Base-surround retrofit enclosure assemblies for containing leakage  
A walled enclosure assembly adapted to be installed around the base of a water-containing appliance and bonded to the support floor to contain leakage therefrom without disturbing the appliance....
5874899 Tank level gauge and sensor head therefor  
A universal read head for a tank-level float gauge is adapted for use with any of certain different types of gauge rods which may be connected to a float element in the tank, including rods having...
5866426 Device and method for determining liquid-probe contact  
A sensor detects when a probe contacts liquid in a container due to a change in frequency of a probe oscillator. The sensor can have its output compared to a reference level to determine the...
5861811 Fluid sensor  
A fluid sensor (100) senses a level of fluid (20) in a receptacle (10). The fluid sensor comprises a detector assembly (200) for detecting fluid and comprises sensor circuitry. The detector...
5860316 Capacitance probe  
A proximity sensing apparatus comprising a capacitor and means for detecting the change in capacitance of the capacitor. The capacitor comprises two capacitive elements that are insulated from each...
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...
5856783 Pump control system  
A pump control system which can distinguish between water and oil so that a pump can be controlled to pump water and deactivated before oil is pumped. Sensing is accomplished by a pair of...
5854518 Inline condensation alarm system for a central air conditioning unit  
An inline condensation alarm system used to detect condensation backup within the condensation line of a central air conditioning unit. The two stainless steel screws complete a circuit between the...
5841357 Battery electrolyte monitor  
A wet cell battery electrolyte level monitor monitors the electrolyte fluid level of individual battery cells on battery powered mobile or stationary equipment. The one piece monitor includes a...
5835018 Low water level indicator  
A low water level indicator includes a detection assembly and an indicator unit. The detection assembly comprises a housing, a pair of electrodes, a control unit, and a battery. The indicator unit...
5821864 Wireless interface probe apparatus and method  
A wireless interface probe having a transmitter, a signal transport/measuring device, and a receiver as provided. The transmitter has two sensors: a liquid level sensor and a water level sensor....
5815079 Device for establishing and/or monitoring a predetermined filling level in a container  
A description is given of a sturdy device for establishing and/or monitoring a predetermined filling level in a container, which device exhibits a housing (1), two oscillating rods (3, 4)...
5798698 Method of monitoring the level of a liquid in a container  
In cases of application where the critical temperature occurs or could occur, safe monitoring of the level of the liquid was not possible heretofore because the physical properties of the liquid...
5793294 Sump alarm  
A galvanic cell is formed when ground water within a sump reservoir, tub or other pool, rises to contact electrodes constructed of dissimilar metals, the electrodes mounted in a bridge, with...
5790035 Reusable temperature and wetness alarm device for the diaper  
This invention provides a wetness alarm device to detect the temperature deviation or the new wetness in the diaper to indicate the new urine issue and to transmit the wetness alarm to human. The...
5785142 Brake oil level safety device for motor  
A brake oil level safety device having a control circuit connected in series between the ignition system of a motor vehicle and the battery power supply thereof, the control circuit having a...
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...
5755105 Air conditioning system fluid level controller  
A sensor apparatus, which is threadably engaged into the auxiliary drain orifice in the drain pan. The sensor includes a pair of water contact points on a first end, which is on the threaded end of...
5751215 Fire finding apparatus  
An infrared sensor is particularly well suited for the detection of heat sources, specifically from fires. It comprises an infrared detector receiving infrared radiation from a focused refractive...
5742234 Particle detection and destruction in fluid systems  
Apparatus for monitoring particles in fluid systems in which a detector has electrical contacts that are bridged by particles captured from suspension in the fluid. Upon detection of a particle, a...
5731758 Toilet water economizer  
A toilet (6) has a solenoidal valve (1) in working relationship to a water-level probe (23), an overflow probe (25) and a floor-water probe (21) to prevent leaks reliably. A signal alarm (31) also...
5729206 Ground water alert device  
A ground water alert device includes an elongated water proof cable member which has a predetermined length and is inserted into a water level monitoring pipe of a well for a predetermined depth...
5727421 Apparatus and method for providing leak proof sealing between a metal rod and a plastic housing molded there around  
An apparatus and method for providing liquid and gas proof sealing between a metal rod and a plastic housing molded there around. The rod includes a plurality of annular intrusions or protrusions...
5719557 Photoelectric smoke detector  
The present invention provides for a smoke detection chamber and a photoelectric smoke detector containing the smoke detection chamber. The smoke detection chamber has side walls with openings...
5719556 Liquid level sensor utilizing AC and resistance  
A liquid level detecting system for detecting a conducting liquid level in a non conductive container which utilizes a grounding rod mounted in a lower portion of the container and a conductive...
5717383 Device for determining and/or monitoring a predetermined level of contents in a container  
The device for determining and/or monitoring a predetermined level of contents in a container comprises a sensor, which is so mounted on the container at the level of contents to be monitored that...
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...
5687608 Connector for concentric tubes attached to a fuel gauge  
A connector for a fuel gauge in a fuel cell which has an inner tube (12) and a spaced-apart concentric outer tube (14). A housing assembly (16) is mountable to outer tube (14) and includes a...
5686893 Water leakage detecting apparatus of water purifier  
A water purifier includes filters and a storage tank for storing water purified by the filters. A water detector disposed below the tank detects water leaked from the tank and supplies a...
5668536 Fluid level sensing apparatus  
An apparatus for sensing the level of fluid, including a two electrode device being disposed in the fluid and a microprocessor. The microprocessor being connected to the two electrode device and...
5661405 Elongate sensor having polymeric electrodes filled with conductive particles and having braided sleeves  
An elongate, flexible sensor for sensing an electrically conductive liquid, such as water, has two flexible electrodes extending along the sensor and two flexible sleeves extending therealong and...
5642098 Capacitive oil water emulsion sensor system  
A sensor system is operable for detecting the presence of water in an oil emulsion inside the lower gear unit of a marine engine, and for providing an alarm signal when the presence of water is...
5631633 Device for determining and/or monitoring a predetermined material level in a container  
The determination and/or monitoring of a predetermined material level in a container is effected with the help of a material level sensor which contains a mechanical oscillatory structure, an...
5627522 Automated liquid level sensing system  
An automated liquid level sensing system for use in an automated, continuous, and random access analytical system is disclosed. A pipette probe is positioned above, and lowered into, a liquid...
Matches 101 - 150 out of 542 < 1 2 3 4 5 6 7 8 9 10 11 >