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Particle suspension in fluid

Subclass of:

340 - Communications: electrical

340500000 - CONDITION RESPONSIVE INDICATING SYSTEM

340540000 - Specific condition

340603000 - Fluent material

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
340628000 Smoke 88
Entries
DocumentTitleDate
20100073173PARTICULATE DETECTOR - An apparatus is provided for detecting presence of transient particulate in gas within a duct (03-25-2010
20100079298ODOR-GENERATING ALARM APPARATUS - One embodiment of the present invention discloses an odor-generating alarm apparatus that can ensure the reliability of a releasing operation and the odor dispersibility. In an odor-generating alarm apparatus, when abnormality information indicating occurrence of an abnormal state is supplied from a sensor for occurrence of an abnormal state, an initiator is operated by a circuit portion, and the initiator displaces a piston of a driving portion and displaces a spray can with respect to a casing and switches the spray can to a releasing state, thus releasing an odorous liquid filling the spray can in the form of fine particles.04-01-2010
20090256713NETWORK COMPRISED OF SENSOR ELEMENTS - A network consisting of sensor elements (10-15-2009
20090009345System and method for an optical particle detector - A system and method is provided for an improved sensor for detecting particles in air such as smoke particles from a fire. The detector includes a laser diode that generates a light beam that is spread by a lens to fill a specific area of the interior of a sensing chamber before entering into a light trap for extinction. The detector consequently has a better signal to noise ratio and therefore may be more sensitive than prior art detectors. The detector may also use a shorter wavelength laser to allow the detector to sense smaller particles than prior detectors and consequently provide faster response to flaming fires.01-08-2009
20100225493IMPROVEMENTS TO RESPONSIVE UNITS - An electronic communication unit such as a mobile phone comprises a processor for operating said unit; and an ambient air quality monitoring sensor; characterised in that said processor is configured to operate said unit in a first mode of operation during which a) monitoring of said air quality occurs and a level of air quality is assessed against pre-determined levels; and b) ordinary communication routines are activated provided an acceptable category of pre-determined levels is identified; and in a second mode of operation during which a) monitoring of said air quality occurs and a level of air quality is assessed against pre-determined levels; and b) an alarm routine is launched interrupting the ordinary communication routines once a level of ambient air quality is assessed to warrant the user's attention.09-09-2010
20110018725HANDHELD SALINITY ANALYZER - Disclosed is a handheld salinity analyzer including a body, in which a circuit board and a battery are installed, a cell block provided with one end inserted into one end of the body and the other end on which a projecting part provided with a salinity sensor hole and a depressed part provided with a temperature sensor hole are formed, a salinity sensor inserted into the salinity sensor hole and provided with one end connected to the circuit board, a temperature sensor inserted into the temperature sensor hole and provided with one end connected to the circuit board, an ON/OFF switch installed on the end of the body, a light emitting lamp connected to the circuit board, and a body cover connected to the end of the body provided with the ON/OFF switch or to the cell block, and provided with an operating piece to operate the ON/OFF switch.01-27-2011
20090045967CAPACITIVE DETECTION OF DUST ACCUMULATION USING MICROCONTROLLER COMPONENT LEADS - A system and method are used for electronically detecting the accumulation of dust within a computer system using a capacitive dust sensor. The dust detection system may be implemented on a smaller computer, such as an individual PC, or in a more expansive system, such as a rack-based server system (“rack system”) having multiple servers and other hardware devices. In one embodiment, each server in a rack system includes a capacitive sensor responsive to the accumulation of dust. The capacitive sensor may include one or more capacitive plates integral with a heatsink. As dust collects on the capacitive plates, the capacitance increases. When a capacitance setpoint is reached, indicating the dust has reached a critical level, an alert is generated. The alerts may be received by a management console for the attention of a system administrator. Each alert may contain the identity of the server generating the alert, so that the system administrator knows which server(s) are to be removed for cleaning.02-19-2009
20100194574PARTICLE DETECTION SYSTEM AND METHOD OF DETECTING PARTICLES - A method for detecting an aerosol plume includes emitting a light beam from a light source, the light beam having at least one light pulse, wherein the light pulse having a pulse width of between about 10 picoseconds (ps) and about 75 nanoseconds (ns), detecting backscattered light produced by the at least one light pulse interacting with particles in the aerosol plume, determining a presence of the aerosol plume based on the detected backscattered light, and outputting a signal indicating the presence of the aerosol plume.08-05-2010
20110260875ALERT DEVICE AND METHOD - An alert device and method include an elongated cavity (10-27-2011
20100097233Furnace filter alert - A dust particle detector comprised of one or more light beam emitters (04-22-2010
20100245097GAS SUPPLY APPARATUS - A gas supply apparatus is adapted for supplying gas to a respiratory mask or patient interface, and includes: a housing including a gas inlet, a gas outlet, and a gas flow path; a blower disposed within the gas flow path; a gas filter disposed within the gas flow path; a breath tubing for connecting to the respiratory mask or patient interface; a particle sensor operable to sense a particle concentration and to generate a concentration signal representative of the particle concentration; a signal processor operable to evaluate when the gas filter should be replaced or cleaned according to the concentration signal and to generate an output signal; and an indicator device generating an alarm signal in response to the output signal.09-30-2010
20090058668ENVIRONMENTAL SENSOR, PARTICLE COUNTING SYSTEM HAVING AN ENVIRONMENTAL SENSOR, AND METHODS OF OPERATING THE SAME - An environmental sensor including an inlet and an outlet such that a flow of fluid moves from the inlet to the outlet, a particle detection portion to detect particles in the fluid, and a controller connected to the particle detection portion. The environmental sensor can be in communication with a data acquisition system (e.g., via a wireless access point) to form a particle counting system. Also disclosed are methods of operating the environmental sensor and methods of operating the particle detection system.03-05-2009
20100007505SYSTEMS AND METHODS FOR DETECTING NORMAL LEVELS OF BACTERIA IN WATER USING A MULTIPLE ANGLE LIGHT SCATTERING (MALS) INSTRUMENT - A particle detection system to identify and classify particles is programmed to capture digitized images of the particle generated by directing a light source through a fluid that includes the particle. The particle scatters the light and the scattered light is detected using a detector. The detector creates a digital signal corresponding to the particle, which is used by the system to generate Bio-Optical Signature. This Bio-Optical Signature can then be used to classify the event, or particle. Count rate and trends of the classified particles are monitored to detect a change that is representative of the overall health safety of the water or by knowing the levels of bacteria in process water, such as Reverse Osmosis (RO) feed water, reject brine, and product water, the operator may better monitor the life and condition of the RO membrane.01-14-2010
20120268280METHODS AND SYSTEMS FOR USE IN MONITORING HAZARDOUS GASES - A display assembly for use with a monitoring system is provided. The display assembly includes a communication interface that is configured to receive hazardous gas data indicative of a concentration level for at least one gaseous component. Moreover, the display assembly also includes a processor that is coupled to the communication interface, wherein the processor is configured to generate at least one image based on the hazardous gas data. The display assembly also includes a display media coupled to the processor, wherein the display media is configured to present the image to a user in real-time. The display assembly is positioned against the user such that the display assembly is movable with the user and the user is enabled to monitor hazardous gases within a location while the user moves about the location.10-25-2012
20120092175Pre-smoke Detector and System for Use in Early Detection of Developing Fires - A pre-smoke detector and system for use in the early detection of developing fires whereby vapors of marker chemicals generated during the melting and/or smoldering of common household materials are detected before detection by conventional smoke detectors. Vapors resulting from the heating and resultant vaporization of substances are detected as well as vapors resulting from their breakdown, decomposition, or pyrolysis during the pre-combustion stage. Conventional smoke detectors focus on particle detection and are most effective after a developing fire has produced smoke. To minimize false alarms caused by common household odors, the pre-smoke detectors focus on detecting medium temperature pyrolysis products using sensor coatings that can be consistent with a 10 year operational lifetime and multiple orthogonal detection processes. Since virtually all marker chemicals of interest for pre-smoke detection are heavier than air, a system is described that appropriately integrates with smoke detector alarm systems present in most homes.04-19-2012
20120286959Automated Allergy Alerts - Devices, systems, and methods are disclosed which relate to utilizing a wireless communication device which receives allergy information from network nodes. The wireless communication device contains an allergy profile for the user. When the wireless communication device receives allergy information this allergy profile is referenced to determine if any allergens near the user may cause a problem for the user. If allergens exist to which the user is allergic, a visual, aural, and/or tactile alert is output on the wireless communication device.11-15-2012

Patent applications in class Particle suspension in fluid

Patent applications in all subclasses Particle suspension in fluid