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:
Jun. 02, 1998
Filed:
Oct. 02, 1995
Applicant:
Inventor:
W Marcus Trygstad, Ellicott City, MD (US);
Assignee:
Foss NIRSystems, Inc., Silver Spring, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
25033907 ; 25033912 ; 2503411 ; 2503412 ;
Abstract
In an instrument for making an NIR spectrographic transmission measurement of a pharmaceutical tablet, masking structure is provided to prevent or reduce leakage of radiation around the edge of the tablet. The masking structure (30, 44) constricts the boundary of the light beam so that it is within the boundary of the top surface of the tablet where it impinges upon the top surface. The tablet is received in a well slightly larger than the tablet formed in a tablet locator (20). An aperture (39) is formed in the bottom of the well.