Scott D Clement

US Patent:

6487921, Dec 3, 2002

Filed:

Oct 26, 2000

Appl. No.:

09/697217

Inventors:

James K. Prescott - Shrewsbury MA
Scott A. Clement - San Luis Obispo CA
John W. Carson - Chelmsford MA

Assignee:

Jenike Johanson, Inc. - Westford MA

International Classification:

G01N 100

US Classification:

7386321, 738655

Abstract:

Apparatus providing samples for evaluating the sensitivity of bulk particulate solids to segregation when permeated by a gas. A plurality of stacked discs are rotatably mounted on a vertical shaft. Each disc has a bore, the bores being alignable to form a columnar sample chamber. A gas is introduced under pressure at the bottom of the chamber to fluidize the solids, inducing segregation. Apertures in the discs are adapted to support sample jars. The discs are independently and sequentially rotatable to cause the portion of the segregated sample within each bore to be separately deposited in a sample jar.

US Patent:

60191473, Feb 1, 2000

Filed:

Oct 26, 1998

Appl. No.:

9/178656

Inventors:

James K. Prescott - Shrewsbury MA
Scott A. Clement - San Luis Obispo CA
Richard A. Winkelpleck - Arroyo Grande CA

Assignee:

Jenike & Johanson, Inc. - Westford MA

International Classification:

B65G 6500

US Classification:

141114

Abstract:

Apparatus having a let-down tube for dust free gravity transfer of bulk solids between upper and lower containers. A spool engageable with a discharge opening on the upper container has a lower end for slidably receiving an end of the let-down tube, the other end of which falls into the lower container. As solids flow from the upper to the lower container through the tube, the tube is progressively drawn up over the lower end of the spool, then longitudinally cut into sheets which are separately rolled up. The let-down tube permits transfer of the solids without demixing or aeration.