Hugh E. Avery Jr.
Engineering at Memorial Dr, Houston, TX

5123749, Jun 23, 1992

Apr 10, 1991

7/683320

Hugh E. Avery - Houston TX

B01F 524, B01F 1300

366341

A blending apparatus, inexpensive in construction and requiring a minimum of recirculation, is today essential for economical and thorough blending of particulate material, for example, plastic pellets of virgin material and of pellets that have been reconstituted from recycled material. Construction of the blender is low in cost because the customary receiver, and its piping, conventionally installed below the blender are eliminated. The novel convex baffle serves: (1) as a termination surface for the otherwise conventional perforated blending conduits; and (2) retains a toroidal annular volume of a specific particulate material as determined by an analogous test apparatus in position between the upper outer surface of the baffle and the inside wall of the blender. The final portion of the main stream of particulate material passes through the blending tubes, drops into the blending area below the convex baffle, whereupon the predetermined and pre-positioned amount of particulate material in the toroidal "keystone joist" is released to proportionally blend with it.

5411332, May 2, 1995

Mar 27, 1992

7/858704

Hugh E. Avery - Houston TX

B01F 524

366336

A blending apparatus, inexpensive in construction and requiring a minimum of recirculation, is today essential for economical and thorough blending of particulate material, for example, plastic pellets of virgin material and of pellets that have been reconstituted from recycled material. Construction of the blender is low in cost because the customary receiver, and its piping, conventionally installed below the blender are eliminated. The novel convex baffle serves:(1) as a termination surface for the conventional perforated blending conduits; and (2) retains a toroidal annular volume of particulate material in position between the upper outer surface of the baffle and the inside wall of the blender. The particulate material passes through the blending tubes, drops into the blending area below the convex baffle, whereupon the small amount of particulate material in the toroidal block or "keystone joist" is released to proportionally blend with it.

4230426, Oct 28, 1980

Mar 20, 1979

6/022095

Hugh E. Avery - Houston TX
Jerome I. Paulson - Spring TX

Allied Industries, Inc. - Houston TX

B65G 5300

406191

A method of reducing the formation of fines and streamers in connection with the gas conveying of plastic particles (and the resulting conveying apparatus), characterized by the maintenance of particular acute angle relationships between the longitudinal flow direction of particles and the impact direction of shot-peening previously used to condition pipe section interior wall means.

4159941, Jul 3, 1979

Nov 14, 1977

5/848028

Hugh E. Avery - Houston TX

Allied Industries, Inc. - Houston TX

B07B 704

209 3

Disclosed is an apparatus for separating a pellet-like product from fines (e. g. , dust) mixed therewith. The apparatus includes a vertically disposed housing having an upper fines outlet and a lower product outlet. An inlet conduit passes through the housing intermediate the fines outlet and the product outlet and terminates in an upwardly facing inlet nozzle. The inlet conduit receives quantities of product and fines along with a propellant fluid (e. g. , pressurized air). An impact baffle is supported within the housing having a concave impact surface that faces the inlet nozzle and that is positioned to intercept the product pellets issuing from the inlet nozzle. The impact baffle is sized and supported to provide an annular flow oriface for the propellant fluid (and fines mixed therewith) between the impact baffle and the housing. A second baffle, supported in the housing adjacent and above the impact baffle, is shaped to define an annular flow conduit that increases in cross section in a direction away from the annular flow oriface. Valve means control the exit velocity of the fines and propellant fluid through the fines outlet.