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公开(公告)号：US10527599B2
公开(公告)日：2020-01-07
申请号：US14154397
申请日：2014-01-14
Applicant: HACH COMPANY
Inventor： Teresa Lynn Swanson , Ronald P. Merwin
Abstract: 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.
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公开(公告)号：US10309948B2
公开(公告)日：2019-06-04
申请号：US15438572
申请日：2017-02-21
Applicant: Hach Company
Inventor： Vishnu Rajasekharan
IPC: G01N33/18 , G01N27/416 , G01N27/07 , G01N27/02
Abstract: A carbon quantifying cell configured to receive a fluid is provided, including two or more electrodes positioned at least partially in the fluid, and meter electronics configured to place an electrical oxidization, polarization, and/or adsorption program across the two or more electrodes and at least partially oxidize carbon materials in the fluid, apply an AC voltage of a predetermined amplitude across the two or more electrodes, measuring the resulting AC current across the two or more electrodes, wherein a ratio of amplitudes and a phase angle difference provides information for calculating a fluid impedance, receive an electrical response of the fluid to the electrical oxidization, polarization, and/or adsorption program, quantify the carbon materials in the fluid using the electrical response, and detect interfering materials in the fluid using the fluid impedance.
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公开(公告)号：US10175163B2
公开(公告)日：2019-01-08
申请号：US15281678
申请日：2016-09-30
Applicant: Hach Company
Inventor： Zhao Lu , Brian Harmon
Abstract: An embodiment provides a method for determining a concentration of an analyte in a fluid sample, including: introducing a fluid sample into a measurement chamber; operating a measurement device to introduce light of a first wavelength to the fluid sample; measuring, with a detector, absorbance of the light of the first wavelength with respect to the fluid sample; operating the measurement device to introduce light of a second wavelength to the fluid sample; measuring, with the detector, absorbance of the light of the second wavelength with respect to the fluid sample; determining, using a processor of the measurement device, an absorbance ratio of the fluid sample using both the measured absorbance of the light of the first wavelength and the measured absorbance of the light of the second wavelength; and providing, via an output device, a determined concentration value for the fluid sample that correlates to the absorbance ratio. Other aspects are described and claimed.
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公开(公告)号：US10006853B2
公开(公告)日：2018-06-26
申请号：US15486125
申请日：2017-04-12
Applicant: Hach Company
Inventor： Douglas Ford Royer , Charles C. Johnson , Andreas Golitz , Bas de Heij
CPC classification number: G01N21/0303 , G01N21/4785 , G01N21/51 , G01N2201/068
Abstract: An embodiment provides a turbidimeter standard ampule, including: a main part composed of glass and containing therein a formazin solution comprising a formazine polymer diluted in a solvent; the main part including a lens positioned in a bottom edge thereof and permitting entry of light from a turbidimeter; the main part having glass sides and permitting redirected light to exit the glass sides for detection by a photodetector of the turbidimeter; an upper part composed of glass and being attached to the main part; and an opaque cap on the upper part, the opaque cap blocking light from entering the upper part of the ampule. Other embodiments are described and claimed.
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公开(公告)号：US09927268B2
公开(公告)日：2018-03-27
申请号：US14661906
申请日：2015-03-18
Applicant: Hach Company
Inventor： Vadim B. Malkov , David Langley Rick
IPC: G01N27/416 , G01F1/00 , G01N33/18
CPC classification number: G01F1/002 , G01N27/4167 , G01N27/4168 , G01N33/182 , Y10T436/115831 , Y10T436/12
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US09746012B2
公开(公告)日：2017-08-29
申请号：US14044587
申请日：2013-10-02
Applicant: Hach Company
Inventor： Bret Warrick , Keith Bender
IPC: F16B2/02 , B25B5/00 , B25B5/06 , F16B2/12 , A61J1/16 , B01L9/00 , A47J45/10 , B25B5/02 , B25B5/04
CPC classification number: F16B2/12 , A47J45/10 , A61J1/16 , B01L9/50 , B01L2200/023 , B25B5/02 , B25B5/04 , Y10T29/49826
Abstract: 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 of the self-centering vial claim 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 during the manual pivoting, aligning the vial.
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公开(公告)号：US09625295B2
公开(公告)日：2017-04-18
申请号：US13569965
申请日：2012-08-08
Applicant: David Langley Rick
Inventor： David Langley Rick
Abstract: 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.
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公开(公告)号：US09618495B2
公开(公告)日：2017-04-11
申请号：US13578451
申请日：2011-02-08
Applicant: Vishnu Rajasekharan
Inventor： Vishnu Rajasekharan
CPC classification number: G01N33/1846 , G01N27/02 , G01N27/07 , G01N27/4168
Abstract: A carbon quantifying cell (20) configured to receive a fluid is provided, including two or more electrodes (22) positioned at least partially in the fluid, and meter electronics (21) configured to place an electrical oxidization, polarization, and/or adsorption program across the two or more electrodes (22) and at least partially oxidize carbon materials in the fluid, apply an AC voltage of a predetermined amplitude across the two or more electrodes (22), measuring the resulting AC current across the two or more electrodes (22), wherein a ratio of amplitudes and a phase angle difference provides information for calculating a fluid impedance, receive an electrical response of the fluid to the electrical oxidization, polarization, and/or adsorption program, quantify the carbon materials in the fluid using the electrical response, and detect interfering materials in the fluid using the fluid impedance.
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公开(公告)号：US09513146B2
公开(公告)日：2016-12-06
申请号：US14499704
申请日：2014-09-29
Applicant: Hach Company
Inventor： Ralf Leidner
CPC classification number: G01D11/30 , G01N33/1886
Abstract: Described herein is an insertion mount, including a threaded cylindrical mount with a hollow inner diameter and a lengthwise slot cutout for receiving a probe; and a drive assembly further comprising a drive nut, wherein the drive nut has threads that engage the threaded outer diameter of the threaded cylindrical mount which allows the drive nut to be moved the length of the cylindrical mount by screwing the drive nut of the drive assembly onto the threads of the threaded cylindrical mount.
Abstract translation: 这里描述的是插入安装件，包括具有中空内径的螺纹圆柱形安装件和用于容纳探头的纵向狭槽切口; 以及驱动组件，其还包括驱动螺母，其中所述驱动螺母具有接合所述螺纹圆柱形安装件的螺纹外径的螺纹，其允许驱动螺母通过旋转驱动组件的驱动螺母而被移动到圆柱形安装件的长度 到螺纹圆柱形支架的螺纹上。
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30.发明授权公开(公告)号：US09453853B2
公开(公告)日：2016-09-27
申请号：US13571328
申请日：2012-08-09
Applicant: David Langley Rick
Inventor： David Langley Rick
Abstract: 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.
Abstract translation: 一个方面提供了一种流体流量测量仪器，包括：传感器，产生表示发射信号反射的信号; 并且仪表耦合到所述传感器并且被配置为：从表示所发射信号的反射的所述信号产生两个或更多个子测量; 并使用两个或更多个子测量信号计算流体流速估计。 描述和要求保护其他方面。
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