R.j. Reynolds Tobacco Company

Ralph Thomas White, Jr

Jerry S Simmons

Dewey L Holt

Charles Bradford Rhoades, Jr

An environmental evaporation chamber for preparing analytical samples is constructed of a plurality of separable, preferably glass, components especially designed for ease of use and low-cost manufacture. The chamber comprises an open-ended cylindrical body portion with a plurality of legs on one end thereof, a bottom tray on which the body portion is placed with the legs resting thereon to provide a gap for the exhaust of a purge gas, and a top cover which fits snugly on the upper edge of the body portion. A purge gas is introduced via a gas inlet adjacent the upper edge of the body portion and flows therethrough and exits through the gap at the lower edge of the body portion. A sample support may be provided in the body portion to raise the height of the sample into closer proximity to a heating element disposed above the top cover. A method of using the evaporation chamber involves removal and replacement of only the top cover component without the need to move the other components.

Environmental evaporation chamber and method of using same

Apparatus for performing analysis of a slurry including solid particles of elements in a liquid suspension has a container for receiving a sample of the slurry to be analyzed, and a conveyor for moving the container to a location at which the analysis is to be performed. A sampling probe is to be introduced into the slurry sample to perform the analysis. A separate probe is adapted to ultrasonically agitate the slurry sample to keep the solid particles in suspension. The agitating probe is automatically introduced into and withdrawn from the container in synchronism with the movement of the container into the desired location and immediately prior to the introduction of the sampling probe into the slurry sample.

Growing community of inventors

Pfafftown, NC, United States of America

Ralph Thomas White, Jr