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:
Nov. 06, 1990
Filed:
Dec. 12, 1988
George E Merva, East Lansing, MI (US);
Tresco, Incorporated, Spring Lake, MI (US);
Abstract
A soil permeameter and method of measuring soil conductivity utilizes a core device that is open at one end that is inserted a measure depth into the soil to be tested. A vertically elongated measuring column is connected to the core device and both are supplied with water sufficiently to develop a pressure head in the column. A timer and a data storage device responsive to the timer are provided to measure and store the time intervals for the level of liquid in the column to fall equal increments. The value of soil conductivity is calculated as a function of the depth of core insertion and the stored time intervals. Both horizontal and vertical components of soil conductivity can be determined separately.