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7389786 |
Ultrasonic and sonic odorization systems
A system is shown for injecting a chemical, such as an odorant, from a chemical supply into a fluid containing system such as a natural gas pipeline or an LPG pipeline. A tank of odorant is...
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7310046 |
Method for eliminating reading errors in a non-contact microwave solids flow meter
Method for eliminating or reducing reading errors of a non-contact microwave solids flow meter measuring solid particulate flow. The method is particularly suitable for calibration procedures prior...
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7181969 |
Ultrasonic test chamber for tray production system and the like
A method and apparatus for ultrasonic inspection of one or more objects in an object holder. In a first embodiment of the method, the objects are immersed in a tank containing coupling fluid and a...
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7034549 |
Device to detect and measure the concentration and characterization of airborne conductive or dielectric particles
A measuring system is disclosed which detects and measures the volume concentration and mass flow of the airborne conductive particles, such as carbon-absorptive chaff particles. The measuring...
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6814992 |
Anaerobic fermentation method and apparatus
A method and apparatus for monitoring a liquid undergoing anaerobic fermentation in a vessel is disclosed. The apparatus comprises an airlock containing a fluid for sealing the vessel and an...
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6809821 |
Optical-reflectance-based mass-flow sensor
The present invention relates to a mass-flow sensor that measures the mass flow of conveyed reflective materials, such as cotton, in a stream of air or non-opaque fluid. In particular, the...
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6726774 |
Bubble detection system for detecting bubbles in photoresist tube
A bubble detection system to detect bubbles in photoresist. The system includes photoresist at least one tank, a buffer tank, a pump, and a bubble sensor. The photoresist tank provides the...
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6660528 |
Method for monitoring contaminating particles in a chamber
A method for determining the number of contaminating particles in a process chamber is described. While the method is particularly suited for detecting particles in a metal etch chamber, the...
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6640649 |
Droplet counter for low flow rates
A low-flow metering device 10 for measuring the flow of an amount of liquid exceeding 0.05 ml., in which a first chamber 12 has an inlet 14 , and an outlet 16 in fluid communication with a...
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6623630 |
Method and apparatus for monitoring a fluid system
An apparatus for monitoring a fluid system particularly suited for use with high pressure liquid chromatography systems. The apparatus monitors seal leakage as well as the general wellness of the...
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6571644 |
Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products
The invention describes a method and a device for determining a filling level and can be applied to the ascertainment of the simmering process of mineral oil products. The method is characterized...
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6175227 |
Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle
A Coulter apparatus comprises a volumeter assembly containing a conduit through which a particle suspension is caused to pass simultaneously with an electrical current. In preferred embodiments the...
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6161395 |
Liquid level sensor
A sensor system. The system comprises a binary sensor issuing a signal representative of a first or second condition; sampling circuitry, operatively connected to the binary sensor, for monitoring...
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6040667 |
System and method for driving wipers in a windshield wiper system
A wiper system and method for use in a wiper system on a vehicle, such as an automobile, a truck, an agricultural vehicle, and the like is shown having a wiper motor having a drive shaft which is...
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5962793 |
Compact feed pellet durability tester
A compact pellet tester for testing the durability of animal feed pellets. The tester comprises a perforated hopper into which a high velocity stream of air is directed upward to agitate the...
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5920018 |
Real time volumetric flow sensor
A sensor for non-intrusively measuring the volumetric flow rate of materials, such as cotton, in a confined air stream is disclosed. The sensor is mounted on a conduit through which an air...
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5913236 |
Protection system for hydraulic systems against leaks/floods, freezing and pressure
A protection system for hydraulic systems, mainly for pipes, faucets, valves, boilers, furnaces, etc. which consists of a handling panel, a cut-off valve, a fluid leak detector, at least one...
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5679907 |
Method and device to determine the aerodynamic diameter of particles
The invention concerns a method and device for determining the aerodynamic diameter of particles carried in a flow. To that end, the velocity of the flow is altered in an area and the particle...
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5650564 |
Fluid drip detection system
A fluid drip detection system which is not prone to false alarms caused by the presence of dirt or solid particle contaminants in the fluid. The fluid drip detector comprises; a conducting hollow...
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5576499 |
Measuring and monitoring the size of particulate material
The apparatus and method for measuring and monitoring the characteristic diameter of a flowing particulate material comprises: a chamber having a particle size measurement outlet of known...
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5559339 |
Method and apparatus for verifying dispense of a fluid from a dispense nozzle
Embodiments disclosed herein provide apparatuses and methods for verifying dispense of a fluid from a dispense nozzle. According to one method, a path of electromagnetic radiation from a source to...
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5555797 |
Control system and method for a kimchi fermentor
A control system for a kimchi fermentor using a kimchi curing sensor constructed to detect gas bubbles and count the number of gas bubbles produced. For mass production of kimchi or other naturally...
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5500992 |
Method of making stress relieved count probe
A method of making a count probe for counting particles comprises the following steps. A count wafer is formed along with a core member having an opening for accepting the count wafer. The count...
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5490428 |
Metering of liquid substances
The process relates to the metering of liquid substances wherein the liquid substance, with separation of drops, is conducted through one or several discharge orifices, and the quantity of liquid...
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5447692 |
On-line process flow and reaction monitor
The present invention makes use of a single detector to monitor several process functions, e.g. reaction efficiency, reagent flow rates, the presence of empty reagent reservoirs, the absence of a...
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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...
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5331309 |
Drip detecting device and drip alarming device and drip rate control device which incorporate drip detecting device
A drip detecting device for detecting drips dropping in a drip cylinder, includes an image detecting portion disposed in the vicinity of the outer wall surface of the drip cylinder for detecting...
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5254102 |
Apparatus for controlling the rate of dripping of intravenous fluid
An apparatus for controlling the rate of dripping of an intravenous fluid, comprising (i) a drip-detecting device for detecting that an intravenous fluid has dripped into a drip-feed bottle, (ii) a...
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5219008 |
Ice dispenser for soft drink system
An ice dispensing system for a soft drink dispenser employs a microphone adjacent a cup into which ice and soft drink are to be dispensed. The microphone senses sounds made by ice pieces dropping...
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5186057 |
Multi-beam liquid-drop size/rate detector apparatus
An apparatus for liquid flow detection especially adapted for use with an IV administration set includes an energy beam emitter device and an energy beam detector device. A drip chamber is...
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5134426 |
Optical device for generating pattern having uniform light intensity distribution
An optical device for illuminating an object with a rectangular pattern having a uniform light intensity distribution includes n (n≥1) polarization separating elements which a laser beam emitted...
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5125268 |
Method and apparatus for acoustically measuring rainfall
A method and apparatus are provided for acoustically measuring precipitat rates and total amounts of rainfall. The rainfall is collected in a reservoir and drained through a gravity feed tube...
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5092181 |
Method and apparatus for measuring gas flow using bubble volume
Method and apparatus for measuring minute gas flows and/or accumulations wherein a gas flow is bubbled through a defined path in separated form and a sensor is used to detect and count each bubble....
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5045069 |
Portable infusion monitor
A portable, self contained, infusion monitor is disclosed which can be easily and quickly attached to the drip chamber of an IV set. The monitor detects each drop of liquid falling through the drip...
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5041990 |
Method and apparatus for measuring entrained gas bubble content of flowing fluid
A method and apparatus measures the gas bubble content of a flowing fluid on a continuous basis without extracting a sample of the fluid. A flowing fluid flows into a density sensor via a...
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5002539 |
IV rate meter
A rate meter for use with an IV fluid administration system having a vertical transparent drip chamber, the rate meter having an elongated housing having a notch therein for receiving the drip...
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4979119 |
Method and system for monitoring the propellant consumption of a space vehicle
To monitor continuously the propellant consumption of a space vehicle equipped with a plurality of propulsion units operated by activator means according to activation instructions received by the...
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4958503 |
Gas detector and method for refrigeration systems
Device and method for detecting the presence of gas in refrigeration systems and other evacuated systems. The exhaust from a vacuum pump connected to the system is passed through a gas detector...
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4909797 |
Enteral delivery set with shaded drip chamber
A drip chamber for an enteral nutrition system having an optical drip detector is provided with an opaque upper portion to reduce the amount of ambient light entering the optical sensor for the...
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4890500 |
Measuring apparatus
Apparatus for detecting and counting flowable particulates having means for feeding these particulates at a uniform speed through a measuring area, defined by radiation emitting and sensing means...
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4869722 |
Flow monitor of liquid drops
A device for accurately monitoring the flow and flow rate of liquids that are released slowly so as to form drops. The drops fall from the tip of a drop funnel 13 onto a surface of liquid at the...
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4829448 |
Air-in-line detector
An air-in-line detector for detecting the presence of air in a translucent tube (8) containing a liquid comprises a channel (18) for receiving the tube, only three radiation emitter detector pairs...
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4827766 |
Dual filter, drop based, digital raingauge
A digital rain gauge which collects rainwater and then internally discharges the collected water in the form of individual droplets of equal volume. The discharge of each droplet is then detected...
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4743760 |
Method and apparatus for metering flowable particulates
A method and apparatus for metering flowable particulates wherein the particulates are fed at a uniform speed through an array of radiation beams, the interruptions of these beams are used to...
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4718896 |
Apparatus and method for controlling the flow of fluid through an administration set
A flow controller is provided that detects intervals between successive drops and responds to detection of intervals which are too long by shutting down operation of the administration set if the...
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4690249 |
Precisely recurrently controllable dropwise liquid-feeders
Precisely recurrently controllable dropwise oilers or other liquid-feeds for apparatus having some optimal-requirement of oil or other liquid-feed to be supplied gravitationally dropwise from an...
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4680977 |
Optical flow sensor
An improved optical flow sensor for optically detecting and measuring the flow of a fluid through a drip chamber assembly. The sensor comprises an optical energy-emitting chip sealed within a first...
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4651331 |
Method of and device for acoustically counting particles
Method of counting particles of seed, fertilizer, and other materials employed in agriculture acoustically. The particles to be counted are conveyed against an impact plate in such a way as to...
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RE32294 |
Drop sensing unit and associated drip chamber for IV fluid administration
A drop sensing unit and associated, disposable drip chamber for dedicated use with the sensing unit in an IV fluid administration system, the sensing unit being adapted for convenient installation...
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4617020 |
Air leak detector and counter for drainage device
A detector and counter for drainage devices is provided which will detect the passage of air through an underwater seal chamber. A signal is transmitted as a result of the detection of the presence...
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