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:
Sep. 04, 1979
Filed:
May. 20, 1977
Applicant:
Inventor:
Jerome B Weber, Raleigh, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
2323 / ; 232303 ; 47 66 ; 7343 / ; 422101 ; 422102 ; 422261 ;
Abstract
A leaching column comprising two half cylinders held together by a removable band at one end and a leachate funnel at the other. For testing various pesticides and herbicides, the particular chemical is added to the leaching column and allowed it to pass through soil contained therein for a measured period of time. The half cylinders are then separated and, while retaining their respective soils, are used to perform a bioassay as well as chemical and radiological tests.