The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2012
Filed:
Aug. 08, 2007
David Alexander Nathaniel Morris, Granger, IN (US);
Teresa Lynn Swanson, Elkhart, IN (US);
David Alexander Nathaniel Morris, Granger, IN (US);
Teresa Lynn Swanson, Elkhart, IN (US);
Hach Company, Loveland, CO (US);
Abstract
An apparatus for analyzing an aqueous solution, as may be implemented with a hand-held portable electronic device () and test element (). A test pad () of the test element responsive in color to a characteristic of an aqueous solution is interrogated by the device by measuring intensity values of an interrogating test light as reflected off of the test pad. The test pad may be supported on an opaque and non-reflective substrate () that cooperates with an opaque edge portion (E) of a test element placement member (B) and associated side walls (W) of the device to minimize the impingement of ambient light onto the test pad during interrogation.