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 Expert  724220

Expert in Dry Bulk Powder Handling

Available for your Consulting and Expert Witness Needs

California (CA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness Market Research

Summary of Expertise:

Listed with other top experts in: 

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.


chemical engineering


solid material handling


carbon black


coal storage

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Fresno, California;  Bakersfield, California;  Salinas, California;  Santa Barbara, California;  Visalia, California;  and Santa Maria, California.

Year   Degree   Subject   Institution  
1963   BS   Chemical Engineering   U of Washington  

Work History:
Years   Employer   Department   Title   Responsibilities

2001 to







Principal consulting engineer and president

1999 to 2001


JR Johanson, Inc.



Consulting Engineer


Consulting engineer on the application of JR Johanson, Inc. problem solving principles and techniques to provide economical solutions to bulk solids flow problems.

1993 to 1999


FP International



Corporate Project Engineering Manager


Develop and execute major capital projects worldwide including new plastic extrusion plants and plant redesign for VOC abatement.

1990 to 1993


Raychem Corporation (now Tyco)




Operation Manager


Design, implementation and operational management of proprietary conductive plastic devices.

1978 to 1990


Raychem Corporation (now Tyco)




Plant Manager


Operation of corporation compounding and chemical plants. Development of Engineering prototype laboratory.

1970 to 1978


General Electric




Compounding Plant Manager


Development, startup and operational management of Valox thermoplastic compounding plant.

1966 to 1970


General Electric




Development Engineer


Non-metallic materials and processes development for numerous spacecraft programs.

1963 to 1966




Michoud Operations


Chemical Engineer


Material and process laboratory test engineer for Saturn V booster development.

Career Accomplishments:


Publications and Patents Summary

He has 6 publications, three patents.

Government Experience:
Years   Agency   Role   Description
2007 to   Idaho National Laboratory   Principal Consultant   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.

Consulting Services:
Selected Consulting Examples:
  • 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.
Recent Client Requests:
  • Silo expert for consulting on reducing particle degradation when filling up a silo.
  • Coal storage expert for consulting on Coal (Bituminous) Storage & Handling.
  • Expert in carbon black by-product for consulting on usage, handling, pricing, grading and consumption.
  • Expert for consulting on Raw Material Flow Issues
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert witness for owner on disfunctional corn rolling mill. His study, report and testimony won a verdict for the owner.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

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

Market Research:
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.

Click the green button above to contact Expert for a free initial screening call regarding your marketing research, industry research, and company research needs.  For research needs involving multiple experts or secondary research, a Research Director can be assigned to coordinate the work into a custom report for you as a potentially quicker and more cost effective alternative to doing this work yourself or hiring a boutique consultancy.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

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"; BulkEx99: -Paper: "One Dimensional Convergence Hopper Secrets"; ASBSH Bulk Mat'ls Storage Conference: -Paper: "Fine Tuning Solids Blenders Using Mat'ls Properties";

Supplier and Vendor Location and 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.


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