The Law Offices of David G. Concannon, LLC

In a closely watched test case that was discussed on Internet forums around the world, David Concannon achieved a defense verdict for Ambient Pressure Diving, Ltd., the English manufacturer of a sophisticated piece of scuba diving equipment known as the Inspiration rebreather.  Ambient was found to be not responsible for the death of Robert Barrett, a diver who died while using an Inspiration rebreather in Pennsylvania in August 2002.

After a four year legal battle and a two week trial, a jury in the United States District Court for the District of New Hampshire deliberated for just one hour before returning a unanimous verdict in Ambient's favor on November 18, 2008.  The jury found that Ambient’s Inspiration rebreather did not have a design defect and it was not unreasonably dangerous for its intended use.

The Inspiration is a closed-circuit rebreather that recycles exhaled gas through a scrubber system, removing carbon dioxide and injecting oxygen at pre-set levels.  The device allows scientists, researchers, explorers, military divers and sport divers to reach greater depths than conventional scuba gear, stay longer, and not produce bubbles via exhalation.  Ambient requires divers to undergo extensive specialized training and receive advanced certification before they are allowed to purchase an Inspiration rebreather. 

Ambient is the world market leader in the production of closed-circuit rebreathers.  Its rebreathers are used by institutions and individuals all over the world, including various militaries, universities, and production companies working for National Geographic, the Discovery Channel, the History Channel, Sky News and the BBC.

The case was brought by Stephanie Barrett, widow of Robert Barrett, who claimed that a design defect in the Inspiration rebreather caused her husband’s death.  The federal court jury, however, rejected allegations by Mrs. Barrett, advanced by her expert witness, Alex Deas, Ph.D. of Scotland, that a combination of electronic and software failures in the Inspiration’s patented redundant control systems stopped the rebreather from delivering oxygen to Mr. Barrett underwater, causing him to lose consciousness and drown.  Mrs. Barrett’s other claims of negligence, breach of warranty, and unfair and deceptive trade practices were dismissed for lack of evidence.

On January 5, 2009, Judge McAuliffe issued an Order denying the Plaintiff's post-trial motions.  The Plaintiff argued that she was entitled to judgment as a matter of law in her favor or a new trial because Ambient supposedly failed to offer competent expert testimony or factual evidence to rebut the expert testimony of Dr. Deas, who is a competitor of Ambient.  (Alex Deas is affiliated with Deep Life, Ltd., the designer of the Apocalypse rebreather.)

The Court's Order stated:  "The verdict in this case was not, in any sense, against the clear weight of the evidence. In fact, the verdict was entirely consistent with the evidence presented, was plausible, and was predictable. The jury was not required to accept Dr. Deas' doubtful theories of causation when more persuasive expert opinion and factual evidence was offered in contradiction and the evidence as a whole plainly pointed to diver error as the most likely cause of Mr. Barrett's tragic death."

Mrs. Barrett did not appeal.  In October 2009, Mrs. Barrett was ordered to pay Ambient $23,503.34 as reimbursement for some of the costs the company incurred in defending against her lawsuit.