Michael G Dodson

US Patent:

48496936, Jul 18, 1989

Filed:

Feb 29, 1988

Appl. No.:

7/162020

Inventors:

James M. Prince - Kennewick WA
Michael G. Dodson - Richland WA
Wayne M. Lechelt - Benton City WA

Assignee:

Battelle Memorial Institute - Richland WA

International Classification:

G01N 2772
G01R 3314
G01R 3312

US Classification:

324225

Abstract:

A system for measuring the hardness of cartridge cases employs an eddy current probe for inducing and sensing eddy currents in each cartridge case. A first component of the sensed signal is utilized in a closed loop system for accurately positioning the probe relative to the cartridge case both in the lift off direction and in the tangential direction, and a second component of the sensed signal is employed as a measure of the hardness. The positioning and measurement are carried out under closed loop microprocessor control facilitating hardness testing on a production line basis.

US Patent:

59069430, May 25, 1999

Filed:

Aug 14, 1996

Appl. No.:

8/700603

Inventors:

James R. Skorpik - Kennewick WA
Michael G. Dodson - Richland WA

Assignee:

Battelle Memorial Institute - Richland WA

International Classification:

G01N 3300
C12M 100
G05D 900

US Classification:

436 34

Abstract:

The present invention is directed toward monitoring a thermally driven gas evolving chemical reaction with an acoustic apparatus. Signals from the acoustic apparatus are used to control a heater to prevent a run-away condition. A digestion module in combination with a robotic arm further automate physical handling of sample material reaction vessels. The invention is especially useful for carrying out sample procedures defined in EPA Methods SW-846.