Patents Assigned to Hach Company
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Patent number: 8724107Abstract: One embodiment provides an annular optical device (100), comprising: an annular meso-optic (1) including an annulus (11) centered about an axis of revolution (A); and a secondary optical structure (2) substantially coaxial within the annulus (11) of the annular meso-optic (1), wherein the secondary optical structure (2) and the annular meso-optic (1) are separated by a media (12) comprising a media refractive index that is lower than a secondary optical structure refractive index, with the secondary optical structure (2) being configured to hold a specimen to be radiated by impinging electromagnetic radiation directed into the secondary optical structure (2) substantially along the axis of revolution (A), wherein re-directed radiation from the specimen is allowed into the annular meso-optic (1) by the secondary optical structure (2) if an angle of incidence of the re-directed radiation exceeds the angle of Total Internal Reflectance. Other embodiments are descried and claimed.Type: GrantFiled: August 12, 2013Date of Patent: May 13, 2014Assignee: Hach CompanyInventor: Perry A. Palumbo
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Patent number: 8703057Abstract: 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.Type: GrantFiled: January 15, 2007Date of Patent: April 22, 2014Assignee: Hach CompanyInventors: David Alexander Nathaniel Morris, Teresa Lynn Swanson
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Patent number: 8687286Abstract: A meso-optic device (1) includes a substantially annular meso-optic body (100) including an axis of revolution (2), a divergent conic optical surface (112) substantially coaxial with the axis of revolution (2), with the divergent conic optical surface (112) configured to receive electromagnetic radiation propagating along an optical axis (3) from an impingent direction, wherein the optical axis (3) is coincident with or intersects the axis of revolution (2), and with the divergent conic optical surface (112) configured to divergently re-direct the electromagnetic radiation away from the axis of revolution (2), and a convergent conic optical surface (114) substantially coaxial with the axis of revolution (2), with the convergent conic optical surface (114) configured to receive the electromagnetic radiation divergently re-directed by the divergent conic optical surface (112) and with the convergent conic optical surface (114) configured to convergently re-direct the electromagnetic radiation toward the axis ofType: GrantFiled: September 8, 2010Date of Patent: April 1, 2014Assignee: Hach CompanyInventor: Perry A. Palumbo
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Patent number: 8675198Abstract: An annular optical device (100) includes an annular meso-optic (1) including an annulus (11) centered about an axis of revolution (A) and a secondary optical structure (2) substantially coaxial within the annulus (11). The secondary optical structure (2) and the annular meso-optic (1) are separated by a media (12) including a media refractive index that is lower than the refractive index of the secondary optical structure. The secondary optical structure (2) holds a specimen to be radiated by impinging electromagnetic radiation. Scattered radiation from the secondary optical structure (2) and within the annulus (11) of the annular meso-optic (1) is allowed into the annular meso-optic (1) if an angle of incidence of the scattered radiation exceeds a predetermined incidence threshold. The annular meso-optic (1) re-directs the scattered radiation to comprise re-directed radiation that is substantially parallel to the axis of revolution (A).Type: GrantFiled: August 1, 2011Date of Patent: March 18, 2014Assignee: Hach CompanyInventor: Perry A. Palumbo
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Publication number: 20140049836Abstract: One embodiment provides an annular optical device (100), comprising: an annular meso-optic (1) including an annulus (11) centered about an axis of revolution (A); and a secondary optical structure (2) substantially coaxial within the annulus (11) of the annular meso-optic (1), wherein the secondary optical structure (2) and the annular meso-optic (1) are separated by a media (12) comprising a media refractive index that is lower than a secondary optical structure refractive index, with the secondary optical structure (2) being configured to hold a specimen to be radiated by impinging electromagnetic radiation directed into the secondary optical structure (2) substantially along the axis of revolution (A), wherein re-directed radiation from the specimen is allowed into the annular meso-optic (1) by the secondary optical structure (2) if an angle of incidence of the re-directed radiation exceeds the angle of Total Internal Reflectance. Other embodiments are described and claimed.Type: ApplicationFiled: August 12, 2013Publication date: February 20, 2014Applicant: Hach CompanyInventor: Perry A. Palumbo
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Publication number: 20140034516Abstract: 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.Type: ApplicationFiled: October 3, 2013Publication date: February 6, 2014Applicant: Hach CompanyInventors: John Robert Woodward, Pierre Antoine Robert Livrozet, Jean-Francois Maurice Rene Schvan, Russell Martin Young, Kevin James West
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Publication number: 20140026388Abstract: 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.Type: ApplicationFiled: October 2, 2013Publication date: January 30, 2014Applicant: Hach CompanyInventors: Bret Warrick, Keith Bender
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Publication number: 20140010729Abstract: 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.Type: ApplicationFiled: September 11, 2013Publication date: January 9, 2014Applicant: HACH COMPANYInventors: David Alexander Nathaniel Morris, Teresa Lynn Swanson
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Publication number: 20140010728Abstract: 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.Type: ApplicationFiled: September 11, 2013Publication date: January 9, 2014Applicant: HACH COMPANYInventors: David Alexander Nathaniel Morris, Teresa Lynn Swanson
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Patent number: 8609425Abstract: 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 (NOx) to detectable species. The resulting species may be quantitatively determined by diazotization using sulfanilamide followed by coupling with N-(1-napthyl)ethylenediamine dihydrochloride which produces a water-soluble azo dye having a magenta color which may be colorimetrically measured at 540 nm from which the nitrate and nitrite concentration in the sample is determined.Type: GrantFiled: August 9, 2010Date of Patent: December 17, 2013Assignee: Hach CompanyInventors: Scott A. Tucker, Lynn M. Egan
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Patent number: 8608925Abstract: A multiple-electrode ion meter (100) is provided. The multiple-electrode ion meter (100) includes meter electronics (102) configured to receive a plurality of ionic concentration voltage measurements and generate an ionic concentration measurement from the plurality of ionic concentration voltage measurements and three or more individual electrode units (108) in communication with the meter electronics (102). The three or more electrode units (108) generate the plurality of ionic concentration voltage measurements to the meter electronics (102).Type: GrantFiled: October 10, 2008Date of Patent: December 17, 2013Assignee: Hach CompanyInventors: Karl King, John Robert Woodward, Russell Martin Young
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Publication number: 20130330245Abstract: 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.Type: ApplicationFiled: March 15, 2013Publication date: December 12, 2013Applicant: HACH COMPANYInventors: Jim Duncan, Aria Farjam, Jim Harbridge, Brian Harmon, Ulrich Lundgreen, Darren MacFarland, Leon Moore, Perry Palumbo, William Louis Pherigo, Jr., Robert Stoughton, Luke Waaler
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Patent number: 8603410Abstract: A chemical indicating device (10) for detection of chloride ions in a sample is provided. The chemical indicating device (10) includes a carrier matrix (12) and an indicator (14) having silver and vanadate supported on the carrier matrix (12).Type: GrantFiled: July 21, 2012Date of Patent: December 10, 2013Assignee: Hach CompanyInventor: Douglas F. Royer
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Publication number: 20130317763Abstract: 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.Type: ApplicationFiled: May 23, 2012Publication date: November 28, 2013Applicant: HACH COMPANYInventors: David Alan Ashman, Timothy Alan Higgins, Lawrence B. Marsh
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Patent number: 8582106Abstract: An automatic optical measurement system (100) is provided. The measurement system (100) includes a sample vial (10) and an automatic optical measurement apparatus (90) configured to receive the sample vial (10). The automatic optical measurement apparatus (90) is configured to detect a presence of the sample vial (10) in the automatic optical measurement apparatus (90) and measure a light intensity of light substantially passing through the sample vial (10) if the sample vial (10) is present. The measured light intensity is related to sample material properties of a sample material within the sample vial (10).Type: GrantFiled: November 4, 2008Date of Patent: November 12, 2013Assignee: Hach CompanyInventors: Perry A. Palumbo, Brian Harmon
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Patent number: 8577623Abstract: 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.Type: GrantFiled: September 14, 2012Date of Patent: November 5, 2013Assignee: Hach CompanyInventor: Thomas D. Wolfe
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Patent number: 8550413Abstract: A self-centering vial clamp (100) is provided. The self-centering vial clamp (100) includes a clamp body (101) including a vial aperture (110) and two or more jaw slots (111) spaced around the vial aperture (110), two or more clamp jaws (211) spaced around the vial aperture (110), with a clamp jaw (211) including a vial contact face (213) and one or more jaw projections (231) configured to engage a jaw slot (111) of the clamp body (101), and two or more lever arms (220) coupled to the two or more clamp jaws (211). A lever arm (220) is configured to be manually pivoted, wherein the lever arm translates the pivoting motion into a sliding motion of the corresponding clamp jaw (211). Interacting lever gears (224) formed on the lever arms (220) constrain the two or more clamp jaws (211) to move substantially in unison.Type: GrantFiled: April 7, 2011Date of Patent: October 8, 2013Assignee: Hach CompanyInventors: Bret Warrick, Keith Bender
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Patent number: 8551311Abstract: 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.Type: GrantFiled: October 10, 2008Date of Patent: October 8, 2013Assignee: Hach CompanyInventors: John Robert Woodward, Pierre Antoine Robert Livrozet, Jean-Francois Maurice Rene Schvan, Russell Martin Young, Kevin James West
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Patent number: D692335Type: GrantFiled: December 12, 2012Date of Patent: October 29, 2013Assignee: Hach CompanyInventors: Luke Waaler, Jim Duncan, Parijat Prabhudesai, Doug Golenz
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Patent number: D699134Type: GrantFiled: December 12, 2012Date of Patent: February 11, 2014Assignee: Hach CompanyInventors: Luke Waaler, Jim Duncan, Parijat Prabhudesai, Doug Golenz