Any news?

DeepBlueInnovation

I think the confusion arose because JPTaylor deleted his post shortly after submitting it - so Joe's comment appears out of context.

In order to clarify the missing post was:
Cheers,

Ben.

Genesis

Let me guess - the details of this "action", now that it has been found to have no merit, will not be posted here, nor will the party who came after Alex be identified?

Gee, looks like market pressure is still considered "inappropriate" eh? It would seem to me that consumers might judge a manufacturer that chooses the sue to suppress data path rather harshly - if they are made aware of the details.

So..... are we gonna see 'em or has this board become an advertising mouthpiece?

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AD_ward9

All things in their own time ... I would have stated exactly who it was if you had not put in those extra two paragraphs at the end of your comment. I am pretty sure all know anyway.

On the inquest question, it is not for me to say post or not post, nor for me to object or support it. It has been posted onto the Inspo site, and surprise surprise, it is rather different from the version posted there prior to the verdict being issued. The coroner's verdict is a public document, which a Rebreather World thread reports in quite a balanced way simply by pointing to the Isle of Man news report which sums it up. Perhaps someone should ask the victim's next of kin?

The Open Verdict probably means a case will heard in a civil court, where the different expert witnesses can be tested more vigorously.

Returning to the matter in hand, the US action was raised by a manufacturer who took exception to my figures. The claim was decided entirely in my favour. As I said, the spreadsheet will be republished with some nice additions. It will be timed to occur simultaneously with the publication of some third party papers which interpret the information.

Alex

NB: No offence meant to Joe - the deleted post explains it all, and I was about to edit my original post to add "As you know, .." before explaining that the IOM has not been subsumed by the USA quite as much as the UK, when I saw the thread had taken off a bit and the context added. I should have said "JT: England may be in the process of transformation into a US satellite state, but Isle of Man is not quite at that stage yet ".

NB2: A gossip has started that it was a US manufacturer that went after me, with a name suggested. The gossip is looking to the wrong side of the pond: I have never seen any reaction from any US manufacturer other than to support safety activities, in fact, I have only ever seen negative pressures from one European company: generally the industry want things improved and appreciates efforts to get those improvements. There is a lot of commonality with our safety work and every US company I discuss this with.

AD_ward9

Getting back to business, here are photos of 5 Open Revolution SSUBA units that used in customer acceptance tests on last week in Bergen. This is a primary life support system for saturation and bell divers, who do 8 hour shifts split into two 4 to 5 hour sessions. It also supports the diver in lost bell situations. Bail out is onto umbilical gas, or in rebreather mode where the umbilical is lost, onto the twin 2litre bail outs. It has to work 24/7 365 days a year, so has some features like 8 O2 cells, and can operate happily with 7 of them faulty - it does not use voting, though for operational reasons half working is the minimum level to start a dive. The rebreather itself is quad redundant: two controllers per side, two sides.

The unit weighs 20kg as a dual scrubber rebreather, including comms unit that supports two lights, two high definition cameras, four zone suit heating, helmet mic, speaker and helmet display (with voice annunciation). Add cylinders, harness, scrubbers to top out at 34kg: the harness alone is 4kg. The unit complies with the CE 2.75J/L Work of Breathing limit with heliox down to 310msw, and air to "in excess of 40msw" - the sensible limit for air on a rebreather. The limits on the single scrubber version (not shown), are slightly lower but still well within the CE limits at any SCUBA depth .

The skids moulded on the case are to enable the unit to slide through 600mm diameter bell and saturation diving trunking. Side covers on tank prevent snaring. I have more pics, all with the usual green tint, of the units underwater, which I will post later.

One of the interesting tests done recently is to test the unit with total power loss, i.e. all electronics out, in both unmanned and manned tests. In unmanned tests, we did a total loss of power 1.3msw into the descent on a 70msw dive, and after a decent bottom time, simulated a total loss of buoyancy control so the diver ascended at 110msw/min. PPO2 was still within safe limits, due to the variable orifice and fail safe PPO2 control design: the report is on Deep Life Ltd: Design Submission for Open Revolution

I will post pics of the SCUBA unit soon, and the WOB report is in the pipe: we are just adding a couple of extra units to the benchmark comparisons. I am very pleased the manufacturers of both the Boris and rEvo kindly provided units to be tested under the same conditions, to be published at the same time. If there is anyone else who would their WOB figures in the same report, please PM me.

Alex

Attached Images

Technips 5 rebreathers 080511.JPG (80.7 KB, 612 views)

MichaelS.

Woohoo updates and I didnt even have to ask this time!

Dave Sutton

And as is a matter of public record, this concern was resolved entirely in favor of Alex.

Well done! And welcome back.

Back to our normal discussions??


Dave

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Edvin M

Last Thursday and Friday Si-tech arranged a seminar here in Lysekil on the Swedish west coast concerning hazardous material and ways to get rid of them. Fortunately for me and a friend of mine they sponsored our school with the tickets so we could attend. On of the speakers was Mikal Sjur Lothe from Technip who presented your commercial rebreather. Unfortunately he did'nt bring one with him but from his presentations of it and a little speak we had afterwards I gotta say that I'm really impressed. And now with the figures you just stated about the weight and failsafeness I want one right away.

Will be really interesting to see the SCUBA unit, even if it does'nt stand up to the commercial version... Keep up the excelent work!

AM

Hi

As discussed within the parameters of our group, my paper is currently a work in progress and not due to be delivered for several months. Due to fairly severe time constraints, I will only periodically be able to check in here, therefore please contact me by email or phone for updates.

Regards

AnneMarie

__________________

AD_ward9

Pics below, showing the present single scrubber unit in the moulded marine camo grey case (got to outsmart dive guides somehow), and dimensions.

The single scrubber eCCR weighs 18.5kg with 2x 2 litre cylinders, regs, scrubber fitted, harness, the works except for no BCD. That is, wearing the rebreather kitted for a dive I weigh 18.5kg more than when I am in just my mask, dry suit and fins. The sports mCCR weighs in at 17kg just now. Both units use the same outer housing and share most of the same parts though the eCCR is made out of different materials.

I have lots of other pictures, showing more detail, and will put them onto a second post this weekend, particularly showing the latest version of the scrubber canisters etc.

The profile off the diver's back is just 170.5mm: you can tell I like wrecks. Back mounted CLs, as is obvious in the picture. This picture is with the manual mouthpiece: the auto-shut off mouthpiece has the ADV mounted there (acting as the ADV and BOV). Note no handsets on this model: it uses voice annunciation and PFD (HUD) instead. There is a dive computer with RF link that we are doing for those who like that element. Pictures of that will be in September: one can't give away too much at once.

The OPV is mounted on the shoulder here: it will be relocated internally following some dives we did in Turkey a few weeks ago where we were comparing the comfort of close to the lung centroid, with that of ease of adjustment on the shoulder. One or two other little tweaks too.

Alex

NB: Just added one of the scrubber pics. Note viewing window to see immediately if scrubber is fitted, all injection moulded. USB port at right is open, other ports are to PFD (HUD) and pressure sensors. Gas injection point is at the back in this photo.

Attached Images

	SRB sideways .jpg (50.9 KB, 337 views)
	Hull unit picture_2.pdf (220.6 KB, 173 views)
	scrubber can with USB port open.jpg (104.2 KB, 38 views)

Paul Evans

Are you going to be at the NEC with this

PLEASE

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