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8182579 |
System and method for determining air purifier filter change time using measurement of motor speed
A system and a method are disclosed for changing a filter provided in an air purifier at an optimum time by measuring the rotational speed of a motor that operates the filter. The system for...
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8128869 |
Air sanitization system with variable speed fan
An air sanitization system including a reactive oxygen species generator, a variable speed fan, a pathogen sensor and a controller. The reactive oxygen species generator generates reactive oxygen...
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8097067 |
Runtime sensor for small forced air handling units
Herein are disclosed devices and methods that can be used to provide an indication of the need to change a filter in a small forced air handling unit, based on the actual operating time (runtime)...
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8038778 |
Air purification apparatus
An apparatus (10) for purifying polluted air consisting of particle phase pollutants and gaseous phase pollutants, the apparatus (10) comprising: a dust level sensor (23) to measure the amount of...
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8007565 |
Powered air cleaning system and air cleaning method
A powered air cleaning system has a flow path extending through the system from an inlet to an outlet. A motor-driven fan is located along the flow path to draw particulate debris laden air into...
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7914603 |
Particle trap for a plasma source
A particle trap for a remote plasma source includes a body structure having an inlet for coupling to a chamber of a remote plasma source and an outlet for coupling to a process chamber inlet. The...
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7909910 |
Vacuum line clean-out separator system
A vacuum clean-out system including a separator chamber and associated collection chamber for removing liquid material and debris from a vacuum output and providing a vacuum return line free of...
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7875100 |
Service life indicator for chemical filters
A method is provided for indicating the useful service life of a gas filtration and purification system comprising steps of embedding two or more mass-responsive electronic sensors (e.g., surface...
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7806961 |
Control interface for a variable speed fan device
A variable speed fan device includes a housing, a motor, a fan blade, a controller, and a first plurality of discrete light sources. The motor is maintained by the housing and the fan blade is...
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7785477 |
Device, method and computer program product for carrying out a process for the filtration of fluids
The invention relates to a filtration system and method for carrying out a process for the filtration of fluids, comprising at least one filtration device with at least one filtration element...
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7749303 |
Service life indicator for chemical filters
A method is provided for indicating the useful service life of a gas filtration and purification system comprising steps of embedding two or more mass-responsive electronic sensors (e.g., surface...
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7726186 |
Airflow sensor for filter blockage detection
A thermal management system includes an airflow sensor that measures airflow in an air path inside an enclosure to be cooled, wherein the air path includes a filter and a fan. A controller is...
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7625424 |
Air cleaner and shut-down method
An air cleaner is provided according to an embodiment of the invention. The air cleaner includes a high voltage power supply configured to provide a high voltage to a collector cell and a shut-down...
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7592178 |
Filter integrity tester
An apparatus and method for testing the integrity of a filter under humid conditions is provided. The apparatus includes an injection assembly which is located on a first side of the filter and a...
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7449038 |
Methods and systems for detecting baghouse filter leaks
A method of detecting leaks in the filter bags of a baghouse filter chamber that includes determining when the filter bags have been cleaned and, during a post-cleaning period after the cleaning of...
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7413594 |
Electrical power disable in an air cleaner
An air cleaner is provided according to an embodiment of the invention. The air cleaner includes a power supply, an electrostatic precipitator cell, and a door. The door closes the electrostatic...
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7399337 |
Continuous air monitor filter changeout apparatus
An apparatus and corresponding method for automatically changing out a filter cartridge in a continuous air monitor. The apparatus includes: a first container sized to hold filter cartridge...
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7351274 |
Air filtration system control
An intense field dielectric air filtration system associated with an air conditioning unit includes a microprocessor based control system which may be connected to the thermostat of the air...
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7261762 |
Technique for detecting and predicting air filter condition
A method and system for detecting and predicting air filter condition for an air handling system operates by determining a system resistance to air flow. The system resistance is utilized to...
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7153347 |
Device and method for controlling air cleaning operation of air conditioner
The present invention provides device and method for controlling air cleaning operation, in which an air conditioner with an air cleaner is made to clean air effectively proper to different...
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7101420 |
Self cleaning air filtration machine and a method for using the same
Self cleaning air filtration machine and a method for using same comprising; a filter with a motor driven belt or disk or counter rotating disks that are perforated, a spray bar, a recirculation...
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7097689 |
Process and system for purifying gases
A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a...
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7048775 |
Device and method for monitoring the integrity of filtering installations
The invention concerns a device and method for monitoring the integrity of filtering installations consisting of a filter housing (1) designed to perform integrity tests and for filtration,...
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7025802 |
Filter control method, and filter controlled by the method
A filter maintenance monitoring method and a filter maintained thereby are provided, by which re-use of the filter by wash is smoothly and efficiently promoted. The filter includes that loaned from...
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6984256 |
System for collecting and filtering imaging by-products
An operational state of a system for filtering imaging by-products from an airflow is monitored by comparing a measurement of the flow rate of the airflow to a threshold. Additionally, an...
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6979361 |
End of service life indicator for fluid filter
An end of service life indicator (ESLI) device for a fluid filter is included on the filter and visually indicates when the life of the filter has expired. The ESLI indicates the depletion of the...
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6858062 |
Residual gas removing device and method thereof
A residual gas removing device for a gas supply apparatus in a semiconductor fabricating facility, includes a low stress valve disposed between a mass flow controller and a chamber. The low stress...
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6827760 |
Method and system for providing a desired atmosphere within an enclosure
A system and method for passive hypoxic training provides a person with a low oxygen (hypoxic) environment. Oxygen sensors automatically monitor and control oxygen levels to maintain the altitude...
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6814784 |
Method of handling diesel particulate filter
To provide a method of handling DPF capable of ensuring an expected value of a catching function of reclaimed DPF and eliminating waste of useful metals included by DPF, DPF(1) mounted to a diesel...
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6660070 |
Air purifier
An air purifier includes a cabinet, an electrically driven fan, a replaceable filter element, and an air quality sensor. A display provides a visual indication of the air quality condition. A...
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6565624 |
Altitude simulation method and system
A system and method for passive hypoxic training provides a person with a low oxygen (hypoxic) environment. Oxygen sensors automatically monitor and control oxygen levels to maintain the altitude...
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6558444 |
Fluid filters having a concealed machine-readable identification
An intake filter (1) or a coalescing filter (4) of a compressor or vacuum pump, or an in-line filter has its identity recorded in a transponder (50, 54), memory chip or other device such as a...
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6533839 |
Visual differentiation of adsorbent-loaded media
There is provided a three-dimensional adsorbent particle filter having a width, depth and at least one exposed outer face. The filter comprises darkly colored adsorbent particles having an L-value...
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6491828 |
Method and system to remotely monitor groundwater treatment
A contaminated aqueous composition is withdrawn from a groundwater extraction well and the groundwater is treated in a pump and treat system to remove a contaminant. The treating of the aqueous...
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6391102 |
Air filtration system with filter efficiency management
A filtration system for trapping airborne contaminants as exemplified in evacuating smoke generated during a surgical procedure wherein operation efficiency thereof is automatically reported in...
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6338823 |
Gas chromatograph
A gas chromatograph has a pressure sensor measuring a pressure in a sample introduction part, a flow control valve controlling carrier gas flow rate, a flow sensor measuring a flow rate of the...
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6273935 |
Apparatus and method for trapping a toxic gas
An apparatus and a method for trapping a toxic gas contained in an exhaust gas from a process chamber are disclosed. In the apparatus, two toxic gas traps are provided which are connected in series...
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6237368 |
Process for the regulating or controlling the NOx content of exhaust gases given off during the operating of glass melting furnaces with several burners run alternately
A method for regulating or controlling the content of NOx in the exhaust gases of a glass-melting furnace having several burners operated in alternation, wherein both the beginning and the end of a...
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6224651 |
Process from separation of a gas mixture by pressure swing adsorption and plant for its implementation
A process for separation of a gas mixture by pressure swing adsorption, in which a pressure swing cycle comprising a sequence of steps which define adsorption, decompression/regeneration and...
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6168646 |
Flow rate control of temperature control fluids
Electronic equipment having a temperature control air flow passage. A length of filter material has a length portion extending across the upstream end of the flow passage, the filter material being...
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6077330 |
Air drying device for a pneumatic system
Device and method for the regeneration of a drying agent in compressed air system. The wetting degree of the drying agent is estimated and recorded by a control unit. The control unit ensures that...
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6042634 |
Moisture extractor system for gas sampling
A gas sampling apparatus includes a probe tube having a tip positionable in a stream of products of combustion and a sample dryer tube connected in fluid communication with an end of the probe tube...
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6040777 |
Device and process for indicating the exhaustion of a filter
A device and a process for indicating the exhaustion of an adsorption filter to indicate a necessary filter change in time is provided. The monitoring device has a gas concentration-measuring...
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6036757 |
Portable room air purifier
A portable air purifier including a housing defining an air inlet, an air outlet and an air flow passage extending therebetween; a filter mechanism disposed to filter air circulating through the...
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6001151 |
Filter assemblies
A filter cell for use as all or as part of a filter panel includes an upper face 1 and a lower face 2. The upper face 1 and lower face 2 includes a set of parallel ribs 3 interconnected across one...
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5944873 |
Device for removing one or more undesirable or dangerous substances from a gas or vapor mixture and a gas mask comprising such a device
The invention relates to a device for removing one or more undesirable or dangerous substances for the human race from a gas or vapour mixture, the device comprising: a predetermined amount of...
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5914453 |
Air handler filter monitoring apparatus
A monitoring apparatus for alerting an operator to the need to change a temperature control system filter includes a mechanism for selecting and setting a primary period of filter use to assure...
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5853455 |
Vapor recovery system with continuous inlet monitoring
A method is provided for efficiently controlling the operation of a vapor recovery system including a first reaction vessel and first bed of adsorbent, a second reaction vessel and second bed of...
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5810908 |
Electronic control for air filtering apparatus
An air filtering apparatus including motor selectively connected to a power source, a fan driven by the motor and creating an air flow, a replaceable filter element selectively positioned in the...
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5772711 |
Filter blockage warning indicator
Apparatus for indicating when the air intake filter of portable turbines useful with spray paint guns is blocked and a method and apparatus for close coupled mounting of a pair of series connected...
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