| Hach Company Patent applications |
| Patent application number | Title | Published |
|---|
| 20160025530 | SONDE - An apparatus can include a controller; memory accessible to the controller; a bus operatively coupled to the controller; sensor circuitry operatively coupled to the bus where the sensor circuitry generates measurement information representative of an environmental condition; and where the controller determines codes, each of the codes representative of an individual operational state of the apparatus, and where the controller associates, in the memory, at least a portion of the measurement information with at least one of the codes. | 01-28-2016 |
| 20150260970 | ANNULAR OPTICAL DEVICE - One embodiment provides an annular optical device, comprising: an annular meso-optic having a substantially triangular cross section and including an annulus centered about an axis of revolution; and a secondary optical structure substantially coaxial within the annulus of the annular meso-optic, wherein the secondary optical structure and the annular meso-optic are separated by a media comprising a media refractive index that is lower than a secondary optical structure refractive index, with the secondary optical structure being configured to hold a specimen to be radiated by impinging electromagnetic radiation directed into the secondary optical structure substantially along the axis of revolution, wherein re-directed radiation from the specimen is allowed into the annular meso-optic by the secondary optical structure if an angle of incidence of the re-directed radiation exceeds the angle of Total Internal Reflectance. Other embodiments are descried and claimed. | 09-17-2015 |
| 20150198575 | METHOD AND KIT FOR DETERMINING IF A SHOCK TREATMENT IS NECESSARY FOR A WATER SOURCE - A kit for determining if a shock treatment is required for a water source may comprise a test strip having at least two chemically treated test areas. One of the areas is responsive in color to a concentration of free chlorine in the water and another test area is responsive in color to a concentration of total chlorine in the water. A chlorine indicator scale may be provided on a substrate, such as a label, and comprises a plurality of pairs of colored indicia and each pair of colored indicia representing a color pattern indicating a concentration, or range of concentrations, of total chlorine and free chlorine in the water. An alphanumeric designation may be provided adjacent to each pair of indicia indicating whether a shock treatment is required for the water source based on a color pattern the associated indicia pattern. | 07-16-2015 |
| 20140345368 | DRIPLESS, PERMANENT SEALING ASSEMBLY FOR CONTAINER - An embodiment provides a permanent sealing assembly for a container, such as a reagent bottle. The permanent sealing assembly allows for drip-less reagent container exchange for liquid analysis instruments. The permanent sealing assembly may be integrated into a container, such as a reagent bottle, and provides an outflow tube that extends into the container. The permanent sealing assembly and the outflow tube thereof remain in the container such that, on an exchange of regent containers, a removable cap assembly of the liquid analysis instrument may be affixed to a new container of reagent without the risk of reagent from the old container contacting the surroundings. Other aspects are described and claimed. | 11-27-2014 |
| 20140262779 | Low Slope pH Electrode With Charge Transfer Component - An aspect includes a low slope electrode device, including: at least one electrode; at least one container at least partially enclosing the at least one electrode and having at least one ion sensitive region; an external buffer container having at least one separating element that separates said at least one ion sensitive region into: a first ion sensitive area separating an internal buffer solution bathing the at least one electrode and an external sample solution; and a second ion sensitive area separating the internal buffer solution bathing the at least one electrode and an external buffer solution; wherein the at least one separating element, the first ion sensitive area, and the second ion sensitive area establish a charge flow circuit. Other aspects are described and claimed. | 09-18-2014 |
| 20140172322 | 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. | 06-19-2014 |
| 20140163925 | 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 hypochloritc, ozone, chlorine dioxide, chloramines, hydrogen peroxide, peracetic acid. | 06-12-2014 |
| 20140049836 | ANNULAR OPTICAL DEVICE - One embodiment provides an annular optical device ( | 02-20-2014 |
| 20140034516 | 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. | 02-06-2014 |
| 20140026388 | SELF-CENTERING VIAL CLAMP - A self-centering vial clamp is provided. The self-centering vial clamp includes a clamp body including a vial aperture and two or more jaw slots spaced around the vial aperture, two or more clamp jaws spaced around the vial aperture, with a clamp jaw including a vial contact face and one or more jaw projections configured to engage a jaw slot of the clamp body, and two or more lever arms coupled to the two or more clamp jaws. A lever arm is configured to be manually pivoted, wherein the lever arm translates the pivoting motion into a sliding motion of the corresponding clamp jaw. Interacting lever gears formed on the lever arms constrain the two or more clamp jaws to move substantially in unison. | 01-30-2014 |
| 20140010729 | ELECTRONIC DEVICE FOR ANALYZING AQUEOUS SOLUTIONS - An electronic device for analyzing an aqueous solution may comprise a housing, one or more measurement circuits and a control circuit all arranged inside the housing. The housing may be configured to receive a test element. The one or more measurement circuits may be configured to produce one or more corresponding sets of measurement signals relating to an aqueous solution received on the test element. The control circuit may include a memory having instructions stored therein that are executable by the control circuit to process the one or more sets of measurement signals to determine one or more corresponding characteristics of the aqueous solution. | 01-09-2014 |
| 20140010728 | ELECTRONIC DEVICE FOR ANALYZING AQUEOUS SOLUTIONS - An electronic device for analyzing an aqueous solution may comprise a housing, one or more measurement circuits and a control circuit all arranged inside the housing. The housing may be configured to receive a test element. The one or more measurement circuits may be configured to produce one or more corresponding sets of measurement signals relating to an aqueous solution received on the test element. The control circuit may include a memory having instructions stored therein that are executable by the control circuit to process the one or more sets of measurement signals to determine one or more corresponding characteristics of the aqueous solution. | 01-09-2014 |
| 20130330245 | MOBILE WATER ANALYSIS - An embodiment provides a cuvette apparatus including: a lid and a body, the body including a fluid channel disposed therein; and the lid including at least one opening aligned with a portion of the fluid channel, thereby providing access to the fluid channel in the body. Other aspects are described and claimed. | 12-12-2013 |
| 20130317763 | AUTO-ZEROING ABSOLUTE PRESSURE SENSOR - One aspect provides a method including determining that an absolute pressure sensor is not submersed in a fluid; measuring an atmospheric pressure with the absolute pressure sensor to determine an offset pressure measurement; submersing the absolute pressure sensor in a fluid; and measuring pressure with the absolute pressure sensor; wherein a compensated pressure measurement of the fluid is determined. Other embodiments are disclosed. | 11-28-2013 |
| 20130256515 | ADJUSTMENT OF MEASUREMENT SYSTEM COMPONENTS - One aspect provides a system including a sensor adjustment component comprising: a memory device having adjustment information stored therein; signal source capable of producing a signal detectable by a sensor to be adjusted; and one or more processors; wherein the one or more processors are configured to execute program instructions to operate the signal source to produce a predetermined signal pattern detectable by a measurement component of the sensor to be adjusted; and wherein the predetermined signal pattern comprises the adjustment information. Other aspects are disclosed. | 10-03-2013 |
| 20130135613 | ANNULAR OPTICAL DEVICE - An annular optical device ( | 05-30-2013 |
| 20130073611 | ANTI-TERRORISM WATER QUALITY MONITORING SYSTEM - A method of monitoring advanced separation and/or ion exchange processes through the collection of localized data. The data is manipulated to generate preconfigured performance, maintenance, quality assurance, quality control, regulatory, cost reports, performance graphing and historical trends. The data is collected from sensors located at an equipment site and transferred to a remote located by use of the Internet, further all data received and used for generation of reports is also accessible by Internet connection. | 03-21-2013 |
| 20130045540 | METHOD AND APPARATUS FOR CAPTURING AND RETESTING AN ONLINE TOC EXCURSION SAMPLE - An aspect provides an analyzer for validating a measurement of total organic carbon in a sample of water, including: one or more processors; and a memory storing program instructions including: instructions for measuring an amount of total organic carbon in a first sample of water using and obtaining a first measurement thereof; instructions for identifying a potential excursion event when an amount of total organic carbon in the first sample is above a predefined threshold; instructions for capturing a second sample of water in a bottle responsive to detecting the potential excursion event; instructions for introducing the second sample into a the analyzer; instructions for measuring an amount of total organic carbon in the second sample using the analyzer and obtaining a second measurement thereof; and instructions for comparing the first measurement and second measurement. Other aspects are described and claimed. | 02-21-2013 |
| 20130041600 | DOPPLER MEASUREMENT INSTRUMENT AND DOPPLER MEASUREMENT PROCESSING METHOD - A fluid flow measurement instrument is provided. The measurement instrument includes a sensor producing a time domain signal representative of reflections of an emitted signal; and a meter being coupled to the sensor and configured to: receive the time domain signal; create two or more spectral estimates for the time domain signal, wherein said two or more spectral estimates have different frequency ranges and resolutions; determine a frequency offset value using one or more of the two or more spectral estimates; and convert the frequency offset value into a fluid velocity. Other aspects are described and claimed. | 02-14-2013 |
| 20130041599 | TARGET SET PROCESSING IN A FLUID FLOW VELOCITY INSTRUMENT TO REDUCE NOISE - One aspect provides a fluid flow measurement instrument, comprising: a sensor producing a signal representative of reflections of an emitted signal; and a meter being coupled to the sensor and configured to: produce two or more sub-measurements from said signal representative of reflections of an emitted signal; and compute a fluid flow velocity estimate using the two or more sub-measurement signals. Other aspects are described and claimed. | 02-14-2013 |
| 20130013259 | 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 hypochloritc, ozone, chlorine dioxide, chloramines, hydrogen peroxide, peracetic acid. | 01-10-2013 |
| 20130009781 | 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 hypochloritc, ozone, chlorine dioxide, chloramines, hydrogen peroxide, peracetic acid. | 01-10-2013 |
| 20120304743 | CARBON QUANTIFYING APPARATUS AND METHOD - A carbon quantifying cell ( | 12-06-2012 |
| 20120298529 | OXIDATION/REDUCTION MEASUREMENT - Oxidation/reduction measurement is described. An aspect provides an oxidation/reduction quantification method, including: receiving intermittent oxidizer/reducer reference measurements from one or more reference sensors; receiving one or more substantially continuous oxidizer/reducer-related measurements from one or more corroboration sensors; and processing the one or more substantially continuous oxidizer/reducer-related measurements with the intermittent oxidizer/reducer reference measurements to generate substantially continuous representative oxidizer/reducer measurements. Other aspects are described. | 11-29-2012 |
| 20120262717 | SPATIAL FREQUENCY OPTICAL MEASUREMENT INSTRUMENT AND METHOD - A spatial frequency optical measurement instrument is provided according to the invention. The instrument includes a spatial frequency mask positioned in a light path and configured to encode light with spatial frequency information, a light receiver positioned to receive the light encoded with the spatial frequency information, wherein the light encoded with the spatial frequency information has been interacted with a sample material, and a processing system coupled to the light receiver and configured to determine a change in the spatial frequency information due to the interaction of the light with the sample material. | 10-18-2012 |
| 20120245863 | INSTRUMENT AND METHOD FOR PROCESSING A DOPPLER MEASUREMENT SIGNAL - An instrument ( | 09-27-2012 |
| 20120241320 | LOW-SLOPE pH ELECTRODE - A low-slope pH electrode ( | 09-27-2012 |
| 20120180554 | TOTAL ORGANIC CARBON (TOC) FLUID SENSOR - A total organic carbon (TOC) fluid sensor ( | 07-19-2012 |
| 20120170137 | MESA-OPTIC DEVICE - A meso-optic device ( | 07-05-2012 |
| 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 |
