Stuart Miles Porter
Engineers at Kenyon Ave, Denver, CO

4119534, Oct 10, 1978

Mar 18, 1977

5/778876

Stuart M. Porter - Denver CO
Francis Edward Litty - Denver CO
Ervin C. Weimer - Wheat Ridge CO
Eric G. Pollack - Denver CO

Stearns-Roger Corp. - Glendale CO

B07B 124

209291

A multiple deck trommel screen is provided having at least an inner course screen and an outer fine screen, both having a diameter greater than the rotating drum to which they are attached for separating fines from course material. A deflector plate is provided at the end of the trommel screen for impingement of air-borne particles so that they fall on the inner trommel screen. A first hopper is provided under the outer trommel screen for receiving the fines and a second hopper is provided beyond the end of both of the trommel screens for receiving the course material. The outer trommel screen is made up of generally flat screen sections which extend as chords around the periphery of a trommel screen frame.

3950861, Apr 20, 1976

Nov 29, 1974

5/528336

Ervin C. Weimer - Denver CO
Stuart M. Porter - Denver CO
Clark G. Hayes - Denver CO

Stearns-Roger Corporation - Denver CO

F26B 1104

34130

There is provided a rotary dryer having an elongated rotatable tubular shell, the shell being axially subdivided into zones including a feed zone, a material distribution zone and at least one drying zone. In the drying zone there is provided a plurality of radially inwardly extending flight support members, the leading edges of which face the inlet end of the shell and extend inwardly and rearwardly from the inner surface of the shell toward the central axis thereof whereby hang up of fibrous material on the leading edges thereof is minimized. A plurality of longitudinally extending flights is secured to each of the support members.