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:
Aug. 13, 1996
Filed:
Aug. 01, 1990
Applicant:
Inventors:
David E Honigs, Laurel, MD (US);
Donald Lynch, Germantown, MD (US);
Assignee:
Perstorp Analytical, Inc., Silver Spring, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L / ; F26B / ;
U.S. Cl.
CPC ...
422104 ; 422 99 ; 422101 ; 422124 ; 34202 ; 34218 ; 34224 ;
Abstract
In the system for analyzing aqueous samples, the aqueous sample is deposited upon a sheet of filter paper which is held in a filter holder by clamping the peripheral edges of the filter paper between male and female threaded members of the filter holder. The filter paper with the sample is dried by a heated air stream directed perpendicularly toward the paper so that it flows around and through the paper. After the sample has been dried, it is analyzed by near infrared spectral analysis to measure the constituents of the dried sample.