Expert Details

Expert in Dry Bulk Powder Handling

Expert ID: 724220 California, USA

Request Expert

He has been primarily involved in the use of various carbon blacks in pigmentation of plastics, fillers for electrical conductivity and reinforcement. This experience is in the processes of compounding, masterbatching, feeding and storage.

Expert has been the primary designer of numerous (over 20) coal storage and feeding systems. These systems have utilized various levels of coal from Lignite to sub-bituminous to bituminous to anthracite.
The form has been from run-of-the-mine to primary crush to pulverized to fine dust. The facilities have been from laboratory to power plant bunkers.
He has the benefit of personally testing the bulk solids material flow properties at various conditions and applying this data using the Jenike-Johanson hoppers design methodology.

He helped to successfully resolve a major flow issue in a brick manufacturer. The solution included a bunker/hopper/feeder transition retrofit.He resolved a process variablilty issue at a roofing manufacturer by eliminating filler segregation in the storage and feeding system.He correctly identified the source of variation in a Petcoke feeding system. The solution involved finding optimum setting for a powder flow assist system.


Year Degree Subject Institution
Year: 1963 Degree: BS Subject: Chemical Engineering Institution: U of Washington

Work History

Years Employer Title Department
Years: 2001 to Present Employer: Undisclosed Title: President Department:
Principal consulting engineer and president
Years Employer Title Department
Years: 1999 to 2001 Employer: JR Johanson, Inc. Title: Consulting Engineer Department:
Consulting engineer on the application of JR Johanson, Inc. problem solving principles and techniques to provide economical solutions to bulk solids flow problems.
Years Employer Title Department
Years: 1993 to 1999 Employer: FP International Title: Corporate Project Engineering Manager Department:
Develop and execute major capital projects worldwide including new plastic extrusion plants and plant redesign for VOC abatement.
Years Employer Title Department
Years: 1990 to 1993 Employer: Raychem Corporation (now Tyco) Title: Operation Manager Department: Polyswitch
Design, implementation and operational management of proprietary conductive plastic devices.
Years Employer Title Department
Years: 1978 to 1990 Employer: Raychem Corporation (now Tyco) Title: Plant Manager Department: Materials
Operation of corporation compounding and chemical plants. Development of Engineering prototype laboratory.
Years Employer Title Department
Years: 1970 to 1978 Employer: General Electric Title: Compounding Plant Manager Department: Valox
Development, startup and operational management of Valox thermoplastic compounding plant.
Years Employer Title Department
Years: 1966 to 1970 Employer: General Electric Title: Development Engineer Department: Space
Non-metallic materials and processes development for numerous spacecraft programs.
Years Employer Title Department
Years: 1963 to 1966 Employer: Boeing Title: Chemical Engineer Department: Michoud Operations
Material and process laboratory test engineer for Saturn V booster development.

Government Experience

Years Agency Role Description
Years: 2007 to Present Agency: Idaho National Laboratory Role: Principal Consultant Description: He is responsible for developing methods and equipment for the applications of materials flow properties to the utilization of herbaceous cellulosic materials in ethanol production.

International Experience

Years Country / Region Summary
Years: 2004 to 2004 Country / Region: France Summary: Consulted on the fabrication of a polymer purge column
Years: 2000 to 2000 Country / Region: Mexico Summary: Training seminar
Years: 1997 to 1997 Country / Region: Netherlands Summary: Plant startup assistance
Years: 2014 to 2014 Country / Region: Spain Summary: Design, installation and commissioning of pharmaceutical feed line
Years: 1915 to 1915 Country / Region: Canada Summary: Consulted on (NH4)2SO4

Career Accomplishments

Associations / Societies
Publications and Patents Summary
He has 6 publications, three patents.

Additional Experience

Expert Witness Experience
Expert witness for owner on disfunctional corn rolling mill. His study, report and testimony won a verdict for the owner.
Training / Seminars
International Powder & Bulk Solids Conference:
-Workshop: "How to Predict and Prevent Segregation Based on Material Flow Properties";
-Seminar: "Retrofiting Coal Bunkers to Prevent Hang-up";
-Workshop: "Hot to Select the Most Effective Blender Based on Ingredient Properties";
-Workshop: "Retrofitting Hoppers & Feeders to Eliminate Flow Problems";
-Paper: "One Dimensional Convergence Hopper Secrets";
ASBSH Bulk Mat'ls Storage Conference:
-Paper: "Fine Tuning Solids Blenders Using Mat'ls Properties";
Vendor Selection
37 years of specifying, vendor sourcing, acquiring equipment/services in multiple projects ranging from small ($100K) to large ($20,000K) in the areas of bulk solids and plastics processing.
Marketing Experience
Product development manager for "green" plastic packaging filler. Development/marketing of several new Diamondback Tech. products, e.g., Oscillating Plate Hopper, Tumble Blender, Air Permeation System.

Fields of Expertise

Request Expert

Dev Tool:

Request: expert/dry-bulk-powder-handling
Matched Rewrite Rule: expert/([^/]+)(?:/([0-9]+))?/?$
Matched Rewrite Query: experts=dry-bulk-powder-handling&page=
Loaded Template: single-experts.php