Heavy Equipment Repair Expert Witnesses: 2

D. Larry Dunville has over 35 years of Overhead Crane experience. Mr. Dunville has built, installed, engineered, estimated, sold and serviced overhead bridge cranes. He has sat on the industry committees that wrote the crane specs for the steel industry, written articles, and taught professional architects and engineers about the special requirements to be aware of when designing buildings that will house overhead cranes. Larry was formerly the Executive Director of the Crane Certification Association of America and is currently on the ASME/ANSI B30.2 Overhead and Gantry Cranes Committee.

Business Experience

Mr. Dunville served as the Owner/President of Dearborn Crane & Engineering Co., a builder and installer of overhead cranes and crane runway systems, from 1975-2012. He was also the former Owner/President of Xcel Computer Systems, a CAD/CAM systems integrator. Mr. Dunville is currently the Owner/President of Digital Industrial Marketing, LLC (2014 to present) and Overhead Crane Consulting, LLC (2016 to present). 

Speaking Engagements

Larry speaks on crane safety, crane inspection and runway design. In the last year he has spoke to, AIST (American Institute of Steel Technology), CCAA (Crane Certification Association of America), CMAA (Crane Manufacturers Association of America) and FEWA (Forensic Expert Witness Association). 

D. Larry Dunville's Video Introduction 

Litigation Support - Larry Dunville offers expert witness services in crane cases involving industrial, manufacturing, and warehousing facilities, as well and power plants. His expertise is available to counsel representing both Plaintiff and Defendant. 

Areas of Expertise:

View D. Larry Dunville's Consulting Profile.

Alpine Engineering & Design, Inc. has 6 consulting mechanical engineers. We have a total of nearly 100 years of experience designing mechanical equipment. We have been retained on over 600 lawsuits, both intellectual property along with product liability. Our engineers have over 80 U.S. patents on products we have designed. 

We have testified regarding patent IPRs, patent infringement/non-infringement, and patent validity/invalidity, product liability, mechanical design, human factors, industrial safety, accident reconstruction, failure analysis, DOT compliance, compliance with OSHA and other standards (i.e. ANSI, ISO ASTM, etc), hydraulic systems. With all of our experience, you will find us a joy to work with.

Our services include a testing and prototype lab, model shop, computer graphics and animations, the ability to create full-size prototypes.   There is nothing better than a good model or animation to get our points across.  Often we come up with arguments that were not previously considered. We give honest, understandable opinions with the underpinning required to help attorneys, judges, and jurors make good decisions.

 Fred P. Smith, PE, CSP,

I have been retained over 500 times as an expert in intellectual property, and product liability cases where I have testified regarding claim construction, infringement, invalidity, breach of warranty, negligent misrepresentation.  Testified in court over 40 times in multiple state courts, Federal Court, before the Patent Trial and Appeal Board (PTAB), the Federal Trade Commission (FTC), and the International Trade Commission (ITC).  I have over 70 patents on such products with a number of patent applications still pending. Received the Utah Genius Award for being one of Utah’s top inventors.

Directed the development and improvement of a wide variety of products including trucking equipment, refuse equipment, hydraulically operated mobile equipment, cranes, manlifts, specialty axles and suspensions, zip lines, amusement rides, exercise equipment, radiofrequency and magnetically shielded enclosures, rotomolded containers, aerial lifts and a variety of consumer products.