| Hach Company Patent applications |
| Patent application number | Title | Published |
|---|
| 20120125771 | CARBON NANOTUBE SENSOR - The present invention provides a remote monitoring system for monitoring the operation of a fluid treatment system and/or the qualities, characteristics, properties, etc., of the fluid being processed or treated by the fluid treatment system. The present invention also relates to carbon nanotube sensors. | 05-24-2012 |
| 20120021527 | LAB-ON-A-CHIP FOR ALKALINITY ANALYSIS - Described is a lab-on-a-chip device and a method employing a lab-on-a-chip device for determining the concentration of species present in water. | 01-26-2012 |
| 20110307221 | BLIND LOGGER DYNAMIC CALLER - Described is an apparatus and method for remotely controlling the call interval of an environmental instrument for a water quality monitoring apparatus based on environmental data obtained by one or more environmental instruments. | 12-15-2011 |
| 20110307203 | PREDICTIVE AND INTERNET-BASED SAMPLER CONTROL - Described is a system for remotely monitoring water quality at one or more locations via a web-enabled application. | 12-15-2011 |
| 20110304475 | SERVER MONITORING OF FLOW AND SAMPLING APPARATUS AND/OR LOGGER - Described is an apparatus and method employing one or more environmental instruments in communication with a communication server that monitors the operation of the environmental instruments based on a task schedule. | 12-15-2011 |
| 20110266409 | SELF-CENTERING VIAL CLAMP - A self-centering vial clamp ( | 11-03-2011 |
| 20110212533 | DETERMINATION OF NITRATE/NITRITE CONCENTRATION IN WATER BY PHOTOCHEMICAL REDUCTION - Methods for determining the concentration of nitrates in several types of water samples by photochemical reduction without the use of toxic materials such as cadmium or hydrazine, and having an approximately 100% reduction efficiency are described. A water sample mixed with a buffered aqueous solution including ammonium salts and EDTA is irradiated using ultraviolet light having wavelengths effective for photochemical conversion of nitrate and nitrite ions (NO | 09-01-2011 |
| 20110125412 | REMOTE MONITORING OF CARBON NANOTUBE SENSOR - The present invention provides a remote monitoring system for monitoring the operation of a fluid treatment system and/or the qualities, characteristics, properties, etc., of the fluid being processed or treated by the fluid treatment system. The present invention also relates to carbon nanotube sensors. | 05-26-2011 |
| 20110056276 | ANTI-FOULING SUBMERSIBLE LIQUID SENSOR AND METHOD - An anti-fouling submersible liquid sensor ( | 03-10-2011 |
| 20100332149 | METHOD AND SYSTEM FOR REMOTE MONITORING OF FLUID QUALITY AND TREATMENT - The present invention provides a remote monitoring system for monitoring the operation of a fluid treatment system and/or the qualities, characteristics, properties, etc., of the fluid being processed or treated by the fluid treatment system. The system for measuring fluid quality and/or equipment operation in a fluid treatment system includes a remote computer that may be associated with a database that accesses data transmitted from the fluid treatment system with the data collected, acquired, etc., from one or more sensors placed in the fluid treatment system. The data may be analyzed or manipulated by a local computer and/or the remote computer, which may be used to generate an analysis result or analysis report. Such results or reports, along with any other information or data including historical or expected information, may be sent or communicated to a remote viewing device for viewing by a user. Methods are further provided for the operation of the remote monitoring system of the present invention. | 12-30-2010 |
| 20100313635 | PARTICULATE TESTER WITH MIXER FOR ANALYTICAL APPLICATION - A mixer for analytical application mixes a container of fluid without a magnetic stir bar. A device for testing a liquid for particles can use the mixer. The mixing can occur in a sealed container, and liquid can be transmitted to the device from the sealed container. | 12-16-2010 |
| 20100245827 | AUTOMATIC OPTICAL MEASUREMENT SYSTEM AND METHOD - An automatic optical measurement system ( | 09-30-2010 |
| 20100235133 | STANDARD MEDIA SUSPENSION BODY, OPTICAL PARTICULATE MEASUREMENT INSTRUMENT, AND VERIFICATION METHOD FOR AN OPTICAL PARTICULATE MEASUREMENT INSTRUMENT - A standard media suspension body ( | 09-16-2010 |
| 20100224490 | MULTIPLE-ELECTRODE IONIC PROBE - A multiple-electrode ion meter ( | 09-09-2010 |
| 20100204924 | METHOD AND SYSTEM FOR REMOTE MONITORING OF FLUID QUALITY AND TREATMENT - The present invention provides a remote monitoring system for monitoring the operation of a fluid treatment system and/or the qualities, characteristics, properties, etc., of the fluid being processed or treated by the fluid treatment system. The system includes a remote computer that may be associated with a database that accesses data transmitted from the fluid treatment system with the data collected, acquired, etc., from one or more sensors placed in the fluid treatment system for measuring fluid quality and/or equipment operation in a fluid treatment system. The remote computer may then analyze or manipulate the data to generate an analysis result or analysis report that may be sent or communicated along with the data and/or any historical or expected information or data to a remote viewing device for viewing by a user. A method is further provided for the operation of the remote monitoring system of the present invention. | 08-12-2010 |
| 20100188660 | SPATIAL FREQUENCY OPTICAL MEASUREMENT INSTRUMENT AND METHOD - A spatial frequency optical measurement instrument ( | 07-29-2010 |
| 20100153021 | ANTI-TERRORISM WATER QUALITY MONITORING SYSTEM - An Anti-Terrorism water quality monitoring system for continuously monitoring a potable water treatment system and related potable water distribution network that provides potable water to a municipality, city, housing development or other potable water consumer. The system includes the collection of data from the water distribution system and from the water treatment facility and from advanced separation processes which are integrated into analytical instruments. The data collected are stored in a remote database on a remote server computer or bank of computers and accessible by Homeland Security or its designated agency. Preferred parameters of monitoring include the turbidity and disinfectant such as chlorine, hypochlorous acid, sodium hypochlorite, calcium hypochlorite, ozone, chlorine dioxide, chloramines, hydrogen peroxide, peracetic acid. | 06-17-2010 |
| 20100020635 | MAGNETICALLY-COUPLED STIRRING APPARATUS AND METHOD - A magnetically-coupled stirring apparatus ( | 01-28-2010 |
| 20090320570 | DETECTION OF FREE CHLORINE IN WATER - The present invention describes methods and kits for determining the concentration of free chlorine in water. To avoid false readings from other species present in the water, the free chlorine is reacted with ammonia to form monochloramine, which is then reacted to form an indophenol or an indonaphthol. The concentration of the indophenol or indonaphthol is proportional to the total monochloramine present. Subtracting the concentration of residual monochloramine from the total monochloramine yields the concentration of monochloramine formed from the free chlorine and ammonia, and is proportional to the concentration of free chlorine. Embodiments of the present invention will simplify and accelerate accurate measurements of free chlorine in water, without interference from compounds impacting present measurements of free chlorine. | 12-31-2009 |
| 20090299651 | FILTRATION TESTING SYSTEM - A filtration testing system is provided. The filtration testing system includes one or more filtration systems configured for filtering a fluid. A filtration system of the one or more filtration systems includes one or more filter units. The filtration testing system further includes a gas detector configured to quantify gas in the fluid at a downstream side of the one or more filter units of the one or more filtration systems. The gas detector is configured to generate a gas quantification, compare the gas quantification to a predetermined gas characteristic, and detect a fault in the one or more filtration systems if the gas quantification exceeds the predetermined gas characteristic. | 12-03-2009 |
| 20090101524 | IONIC PROBE - An ionic probe is provided according to the invention. The ionic probe includes an active electrode configured to generate a measurement signal for an external test fluid, a first reference electrode configured to generate a first reference signal, and an at least second reference electrode configured to generate at least a second reference signal. The measurement signal is compared to the first reference signal and the at least second reference signal in order to determine an ionic measurement of the external test fluid. | 04-23-2009 |
| 20090032397 | IONIC PROBE INCLUDING AN EXTRUDABLE CONDUCTIVE JUNCTION MATERIAL - An ionic probe including an extrudable conductive junction material is provided. The ionic probe includes an outer shell holding the conductive junction material and an ionic probe assembly located at least partially within the outer shell, with the ionic probe assembly including an active ion sensitive region extending from a proximal end of the outer shell and further including an active electrode and reference electrode extending from a distal end. The ionic probe further includes at least one moveable seal that forces extrusion of a portion of the conductive junction material. | 02-05-2009 |
| 20090032396 | UNITARY IONIC PROBE - A unitary ionic probe is provided. The unitary ionic probe includes a substantially elongate body including a central axis (AA), a proximal end, and a distal end. The unitary ionic probe further includes an active ion sensitive region that is located on and bonded into an exterior of the elongate body in a region of the proximal end and an active electrode in ionic communication with the active ion sensitive region. The unitary ionic probe further includes a reference ion sensitive region that is located on and bonded into the exterior of the elongate body and is spaced-apart from the active ion sensitive region and a reference electrode in ionic communication with the reference ion sensitive region. | 02-05-2009 |
| 20080209652 | SYSTEM AND METHOD FOR A SONDE SENSOR CLEANING SYSTEM - A sonde cleaning brush is disclosed that has a plurality of bristles extending from the brush surface. The bristles have a stiffener attached to the bristles causing the stiffness of the bristles to increase along the length of the brush while preserving the flexibility of the bristles perpendicular to the brush length. There may be one or more stiffeners attached to the brush bristles. | 09-04-2008 |
