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. 22, 1977
Filed:
Jul. 10, 1975
Applicant:
Inventors:
Kent K Stewart, Silver Spring, MD (US);
Gary R Beecher, Laurel, MD (US);
Peter Edgar Hare, Takoma Park, MD (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
2323 / ; 2325 / ; 23259 ; 7342 / ;
Abstract
An apparatus and method for automatically analyzing up to 150 samples per hour with high precision. Air segmentation and its concomitant limitations and drawbacks are eliminated by use of a novel stream sampling valve which transfers a predetermined volume of sample only from a sample flow system to a reaction flow system.