Expert witnesses must have broad experience, impressive credentials, good communication skills, an analytical mind and stay calm under pressure. Dr. J. Paul Tullis, President of TEC has demonstrated these qualities in depositions and in court. He considers the ultimate teaching experience to be educating a judge and lay jury about graduate level engineering material in a few hours in a court room.

 

Expert Witness

TEC Can Help

Dr. Paul Tullis has 33 years of teaching experience at universities and short courses, combined with his ability to explain difficult things in simple terms has allowed Dr. Tullis to meet this challenge successfully.


TEC Can Provide the Service You Need


TEC Has Experience With the Following Subjects:


Expert Witness Services

  • Forensic engineering
  • Expert reports
  • Depositions
  • Affidavits
  • Trial testimony
  • Accident re-creation using computer simulation/animation (Note: A sample simulation can be furnished upon request)
  • Evaluating testimony of opposing experts
  • Providing cross examination questions


Areas of Expertise

  • Patent infringement
  • Pipeline failures
  • Valve and fire hydrant problems
  • Hydraulic transients, water hammer and surge problems
  • Cavitation and vibration problems with pumps and valves
  • Flooding
  • Failure of hydraulic equipment
  • Accidental death and injuries
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Clients (partial listing)

  • Allagretti and Whitcoff, Chicago, IL, (patent infringement)
  • Barnes & Thornberg, Indianapolis, IN (patent infringement)
  • Booth & Koskoff, Torrance CA (Personal Injuries involving a dock leveler and an automobile lift)
  • Cache County Attorney, Logan, UT (homicide)
  • Cozen O’Connor, Philadelphia PA (sprinkler pipe rupture)
  • Hawkeye-Surity Insurance Co./ Ford Scalley Lawyer, SLC, UT (flooding)
  • Hilliard, Anderson and Olsen, Logan, UT (personal injury)
  • Howard, Lewis and Petersen, Provo, UT (drowning)
  • Jenner and Block, Chicago, IL (pipeline failure)
  • Johnson, Cebula and Rygh, Long Beach, CA (personal injury)
  • Merchant and Gould, Minneapolis, MN (Patent infringement)
  • Methany Sears Linkert and Long, LLP, Sacramento CA (Fire Hydrant accident)
  • Michaels and Watkins, LA CA (Accidental death involving a container truck)
  • Michie Hamlett, Lowery, Rasmussen and Tweel, Roanoke VA (Wrongful death involving a pumper truck accident)
  • Miller Law Firm, Marshall, TX (wrongful death)
  • Morgan, Lewis & Bockius LLP, Los Angeles, CA (asbestos in fire hydrants)
  • Ray, Quinney and Nebeker, SLC, UT
  • Rick Amorose, Lawyer, Sacramento, CA (Pipeline failure)
  • Scarletti and DeFasio Law Firm, Scranton PA ( Personal injury involving a boom truck)
  • Scott, Hulse, Marshall, Fruille, Finiger and Thurmond, El Paso, TX (refinery fire caused by failure of a check valve)
  • Susman Godfrey, Seattle, WA (failure of a gasoline pipeline)
  • The Construction Law Group, San Francisco, CA (cavitation and vibrations at a pump station)
  • The O’Malley Law Firm, St. Louis, MO (personal injury involving a fire Hydrant)
  • Watt, Tieder and Hoffer, Irvine, CA (sleeve valve replacement)
  • Wildman, Harrold, Allen and Dixon, Chicago, IL (asbestos in valve packings)
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Cases involving Valves, Fire Hydrants and Mechanical Equipment

  • Check valve failure at a Chevron oil refinery. Provided forensic engineering services to determine the cause of the failure of the check valve. Dr. Tullis prepared expert testimony, written reports, affidavits, two depositions and prepared for trial. The case was settled the day before it was scheduled for trial.

  • Pipeline failure in South Dakota due to improper valve operation. Provided forensic engineering services to determine the cause of the pipe failures. Prepared several expert reports, affidavits and gave two depositions. Case settled in court. Dr. Tullis spent 6 weeks in court evaluating testimony of opposing experts and testifying for the defense.

  • Failure of a 78 inch diameter concrete pipe for Stockton CA, East Water Distric . Provided forensic engineering services to determine the cause of the failure. The case was settled out of court.

  • Failure of a large diameter pipeline in Puerto Rico. Provided forensic engineering services to determine the cause of the failure.

  • Health problems related to asbestos in valve packings and flange gaskets for valves and fire hydrants. Provided forensic engineering services to determine if valve packings and gaskets containing asbestos can generate damgerous levels of airborne fibers.

  • Failure of pressure relief valves on the Olympic pipeline. Determined the cause of the failure of the relief valves to protect the pipeline. Prepared expert testimony and a written report. The case was settled out of court.

  • Failure of cooling tower valves. Determine the cause of the failure. Prepared expert testimony and a written report. The case was settled out of court.

  • Fire hydrant malfunction. Determine if the fire hydrant mal-functioned or if the accident was due to operator error. The case settled out of court.
  • Several cases involving failures of hydraulic systems in pumper trucks, boom trucks, dock levelers, automibile lifts, etc.

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Cases involving Hydraulic Transients, Water Hammer and Surges

  • Role of hydraulic transients in the failure of 6" riser pipe in sprinkler system in an office building. Provided forensic engineering services to determine if transient pressures generated by closure of a butterfly valve could have caused the failure. Case still in litigation.

  • Role of transients in a fire caused by the failure of a 2000 ton hydraulic press hydraulic line. Provided forensic engineering services to determine the cause of the failure. Prepared expert testimony and a written report. The case was settled out of court.

  • Transients caused by failure of pressure relief valves on the Olympic gasoline pipeline. Provided forensic engineering services to determine the cause of the pipe rupture and the role of the high pressure transients caused by the relief valves. Prepared expert testimony and a written report. The case was settled out of court.

  • Failure of a rural pipeline in South Dakota. Provided forensic engineering services to determine what role of hydraulic transients played in the failure of the pipe. Prepared several expert reports, affidavits and gave two depositions. Spent 6 weeks in court evaluating testimony of opposing experts and testifying for the defense. Case settled in court.

  • Transients caused by rapid filling and operation of air release valves, Stockton East Water District. Provided forensic engineering services to determine the cause of the failure. Prepared expert testimony and a written report. Case settled out of court.

  • Transients caused by valve closure in the piping of a cooling tower. Determined the cause of the failure. Prepared expert testimony and a written report and trial testimony.
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Cases involving Pipeline Failures

  • Failure of the Olympic gasoline pipeline. Provided forensic engineering services to determine the cause of the failure. Prepared expert testimony and a written report. The case was settled out of court.

  • Failure of a rural pipeline in South Dakota. Provided forensic engineering services to determine the cause of the pipe failure. Prepared several expert reports, affidavits and gave two depositions. Spent 6 weeks in court evaluating testimony of opposing experts and testifying for the defense. Case settled in court.

  • Failure of a penstock to a hydro power plant in Idaho. Provided forensic engineering services to determine the cause of the failure. Prepared expert report and gave deposition. The case settled before it went to trial.

  • Failure of a 78 inch diameter concrete pipe for Stockton CA, East Water District . Provided forensic engineering services to determine the cause of the failure. The case was settled out of court.

  • Failure of a large diameter pipeline in Puerto Rico. Provided forensic engineering services to determine the cause of the failure.
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Cases involving Pump Problems

  • Vibration and cavitation problems at a sewage pump station in Sausalito CA. Provided forensic engineering services to determine why the pump vibrated and cavitated so excessively. Provided one depositions. Furnished trial questions for experts on both sides. Case settled out of court.

  • Investigation of possible negligence and possible unsafe pump design in a death of a worker caused by burns sustained by boiling water and steam issuing from the pump when the discharge pipe was removed. Case still pending.

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Cases involving Flow Meter Problems

Patent infringement case involving Coriolis mass flow meters. Compared the two flow meters to determine if the patent was infringed. Prepared several expert reports, affidavits and gave two depositions. The case was tried in court twice. The first was a jury and the second was a bench trial. Dr. Tullis spent many weeks in court evaluating testimony of opposing experts, preparing rebuttal testimony and testifying for the defense.