US Patent 7542143 Liquid measurement cell having a pressurized air cavity therein
Patent 7542143 was granted and assigned to E.I. Du Pont De Nemours And Company on June, 2009 by the United States Patent and Trademark Office.
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Patent abstract
A flow cell for measuring the color properties of a liquid flowing therethrough using interrogating radiation at a predetermined wavelength has a thin partition mounted in spaced relationship between both a window and a base of the cell. The partition and the window define an air cavity therebetween. The spacing between the partition and the window is such that evanescent coupling of radiation reflected from the liquid into the material of the window is prevented.
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US Patent 07542143 Liquid measurement cell having a pressurized air cavity therein US Patent 7542143 Liquid measurement cell having a pressurized air cavity therein
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Patent Number
0754214300
Patent Number
754214300
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
075421430
Date of Patent
June 2, 2009
0Patent Application Number
116345810
Date Filed
December 5, 2006
0Official Website
Patent Primary Examiner
Edits on 25 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
075421430
Date of Patent
June 2, 2009
0Patent Application Number
116345810
Date Filed
December 5, 2006
0Official Website
Patent Primary Examiner
Edits on 15 Jun, 2022
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US Patent 07542143 Liquid measurement cell having a pressurized air cavity therein
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07542143
Date of patent
June 2, 2009
Patent application number
11634581
Date Filed
December 5, 2006
Patent primary examiner
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