Forensic Engineers and Consultants

Blog Posts by: Jeff Warren

Author Jeff Warren

Expertise Includes:

  • Machine Design & Safeguarding
  • Machinery & Equipment Analysis
  • Products Liability
  • Risk Assessment
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Children Will Fall At Playgrounds. What Shall We Do To Protect Them? A Multipart Blog Series – Part I

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A 5-year old boy was severely injured at a public playground when he fell through a second floor opening around a fireman’s pole in a playhouse. He fell more than seven feet and struck a bare concrete floor. We are thankful that he eventually recovered from his injuries. The person who designed and built the playground was accused of negligence. A lawsuit ensued, and eventually settled in favor of the boy. Read More

Congratulations to Jennifer Morningstar on receiving Professional Engineer’s License

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Warren is thrilled to announce that Jennifer Morningstar passed the Principles and Practice of Chemical Engineering exam and received her South Carolina Professional Engineer’s License on July 17, 2017. She has been with Warren since September 2011, in a non-engineering capacity but has rejoined the ranks of engineers as a consultant. Read More

Warren Welcomes New Chemical Engineer

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Warren is pleased to announce that Chemical Engineer, Jennifer Morningstar, E.I.T., has joined our team of engineering professionals as a Consulting Engineer. Read More

Electrical Engineer Joins Warren

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Warren is pleased to announce the addition of Tom Kelly, MSEE, PE, CFEI, as Senior Consulting Engineer specializing in electrical equipment failures, electrocution and electric shock accidents, fires and explosions, industrial electrical accidents, lightning strike analysis, and scope of damage/estimate of repair. Tom also has experience in robotics and automation systems and high energy laser design. Read More

Injury Involving a Capstan Winch

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A capstan winch uses a mechanically powered rotating cylinder, called a capstan, to apply pulling force through a rope. When the rope is looped around the rotating capstan and tightened, friction between the rope and capstan allows the winch to apply force to pull a load. A typical capstan winch is shown in Figure 1 below. Read More

Warren Forensics Celebrates 20 Year Anniversary

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It makes me proud as the founder of Warren Forensics to announce that we have crossed another milestone in the history of our company. On February 1, 2017, we will have been in business for twenty years. I am particularly proud of our team of professional engineers and consultants who have worked on your forensic engineering cases and communicated, with authority, fact-based opinions you could trust. Read More

Case Study of an Injury Involving a Soil Mixer

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In May, 2014, a plant farm worker was seriously injured when he fell into the hopper of an electrically powered soil mixer.  The mixer in question used a rotating steel ribbon powered by a 7-1/2 hp electric motor to mix batches of materials such as sand, mulch, wood shavings, fertilizers and other landscaping materials to create potting soil. At the top of the hopper sidewalls, within 6 inches of the ribbon, was a steel grate. Read More

A Case Study in a Coal Mine: What are a Machine Rebuilder’s Responsibilities?

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In November of 2010, a miner was injured by a roof bolting machine (roof bolter) in an Alabama underground coal mine. The roof bolter in question had undergone a complete rebuild intended to return the machine to the original equipment manufacturer’s (OEM’s) specifications. Warren was hired to analyze both the design of the roof bolter and the actions of the rebuilder to determine if either contributed to the unfortunate coal miner’s serious injury. Background information on coal mining and roof bolters, as well as an analysis of the roof bolter and the actions of the rebuilder are included. Read More

Warren to Attend SCDTAA 49th Annual Summer Meeting in Asheville, NC

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Warren is excited to announce that Senior Consulting Engineers, Roger Davis, John Phillips, and Business Development Coordinator, Laura DePasquale will be attending the 49th Annual Summer Meeting for the South Carolina Defense Trial Attorneys’ Association (SCDTAA). This year’s meeting takes place at the Renaissance Hotel in Asheville, NC, from July 28 to July 30, 2016. Read More

Manufacturer Settles with Operator Injured by a Flying Tool Fragment from Milling Machine

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In my June 2015 blog, I discussed a personal injury case where the jury decided that the lack of interlocks on the covers of a swamp cooler did not render it defective, even though it was technologically feasible to do so and their existence would have prevented the amputation.  Conversely, in another interesting personal injury case involving a computer numerically controlled (CNC) milling machine, a large settlement was made by the manufacturer with the injured operator because the machine did not have adequate interlocks on its enclosure doors. Read More

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