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公开(公告)号：US11595798B2
公开(公告)日：2023-02-28
申请号：US17085760
申请日：2020-10-30
Applicant: Hach Company
Inventor： Brian Alan Harmon , Gregory James Lipinski , Joseph Rockstan Williams , Theophilus Brian Mooney , Timothy A. Higgins , Dan Jonathan Kroll , Vishnu Rajasekharan , Corey Alan Salzer
Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.
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公开(公告)号：US12108318B2
公开(公告)日：2024-10-01
申请号：US18081996
申请日：2022-12-15
Applicant: HACH COMPANY
Inventor： Brian Alan Harmon , Gregory James Lipinski , Joseph Rockstan Williams , Theophilus Brian Mooney , Timothy A. Higgins , Dan Jonathan Kroll , Vishnu Rajasekharan , Corey Alan Salzer
Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.
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公开(公告)号：US11169112B2
公开(公告)日：2021-11-09
申请号：US16428727
申请日：2019-05-31
Applicant: Hach Company
Inventor： Vishnu Rajasekharan , David L. Rick
IPC: G01N27/416 , G01N27/30
Abstract: An embodiment provides a method for measuring pH in an aqueous sample with a frit-less electrode, including: introducing an aqueous sample into a measurement device comprising at least three electrodes, wherein at least one electrode of the at least three electrodes comprises a ground rod electrode, wherein at least one electrode of the at least three electrodes comprises a first measurement electrode, and wherein at least one electrode of the at least three electrodes comprises a second measurement electrode; measuring a first electrical potential between the first measurement electrode and the ground rod electrode in the aqueous sample; measuring a second electrical potential between the second measurement electrode and the ground rod electrode in the aqueous sample; and identifying a pH of the aqueous sample based upon a difference between the first electrical potential and the second electrical potential. Other aspects are described and claimed.
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公开(公告)号：US20210136540A1
公开(公告)日：2021-05-06
申请号：US17085760
申请日：2020-10-30
Applicant: Hach Company
Inventor： Brian Alan Harmon , Gregory James Lipinski , Joseph Rockstan Williams , Theophilus Brian Mooney , Timothy A. Higgins , Dan Jonathan Kroll , Vishnu Rajasekharan , Corey Alan Salzer
Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.
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公开(公告)号：US20210116415A1
公开(公告)日：2021-04-22
申请号：US17253474
申请日：2019-07-24
Applicant: HACH COMPANY
Inventor： Vishnu Rajasekharan , Russell Young , Richard Leggett , Seamus O'Mahony
Abstract: An embodiment provides a method for measuring at least one characteristic of an aqueous sample, including: introducing an aqueous sample into a measurement device comprising one or more electrodes; oxidizing a transition metal to produce a higher valent metal by applying an electrical potential between an anode and a cathode of the measurement device; oxidizing, using the higher valent metal as a catalyst, a material within the aqueous sample; measuring a characteristic of the aqueous sample based upon the oxidized material, using a measurement device selected from the group consisting of: an electrochemical measurement device and an optical measurement device; and optimizing the electrical potential and at least one reagent delivered to the measurement device based on the measurement of the characteristic. Other aspects are described and claimed.
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Patent Agency Ranking
公开(公告)号：US20210102914A1
公开(公告)日：2021-04-08
申请号：US17127296
申请日：2020-12-18
Applicant: Hach Company
Inventor： Corey Salzer , Vishnu Rajasekharan , Dan Kroll , John Lee
IPC: G01N27/404 , G01N27/49 , G01N33/18 , G01N27/407
Abstract: An embodiment provides an amperometric sensor, including: a housing containing an inner fill solution; an electrode bathed in the inner fill solution; and a membrane in intimate contact with the electrode; the electrode being formed as a non-compact or porous structure on the membrane; whereby a spatial relationship of the electrode and the membrane is constant. Other embodiments are described and claimed.
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公开(公告)号：US20180328885A1
公开(公告)日：2018-11-15
申请号：US15775928
申请日：2016-11-11
Applicant: HACH COMPANY
Inventor： Vishnu Rajasekharan , Corey Salzer
IPC: G01N27/416 , G01N33/18 , G01N27/403
CPC classification number: G01N27/4168 , C02F2209/29 , G01N27/403 , G01N33/18 , G01N33/182
Abstract: One embodiment provides a method, including: initiating, at a generator electrode in an electrode array having a collector electrode adjacent to but physically separate from the generator electrode, a reduction reaction for an oxygen containing species and a monochloramine species present in a water sample; said initiating comprising generating, at the generator electrode, a generator current producing the reduction reaction; detecting, at the collector electrode, a collector current associated with products formed from the reduction reaction; wherein the electrode array is biased to preferentially detect one or more products of the reduction reaction; and determining, by comparing the generator current with the collector current, concentrations of oxygen containing species and monochloramine species present in the water sample.
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公开(公告)号：US12013368B2
公开(公告)日：2024-06-18
申请号：US17253474
申请日：2019-07-24
Applicant: HACH COMPANY
Inventor： Vishnu Rajasekharan , Russell Young , Richard Leggett , Seamus O'Mahony
CPC classification number: G01N27/4167 , G01N21/80 , G01N27/302 , G01N31/005 , G01N31/221 , G01N33/1846
Abstract: An embodiment provides a method for measuring at least one characteristic of an aqueous sample, including: introducing an aqueous sample into a measurement device comprising one or more electrodes; oxidizing a transition metal to produce a higher valent metal by applying an electrical potential between an anode and a cathode of the measurement device; oxidizing, using the higher valent metal as a catalyst, a material within the aqueous sample; measuring a characteristic of the aqueous sample based upon the oxidized material, using a measurement device selected from the group consisting of: an electrochemical measurement device and an optical measurement device; and optimizing the electrical potential and at least one reagent delivered to the measurement device based on the measurement of the characteristic. Other aspects are described and claimed.
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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：US20170160256A1
公开(公告)日：2017-06-08
申请号：US15438572
申请日：2017-02-21
Applicant: Hach Company
Inventor： Vishnu Rajasekharan
IPC: G01N33/18 , G01N27/416 , G01N27/07
CPC classification number: G01N33/1846 , G01N27/02 , G01N27/07 , G01N27/4168
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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