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From: "Richard Pyle" <deepreef@bi*.bi*.ha*.or*>
To: "Mitch Mathews" <mitchmat@ju*.co*>, <cavers@ca*.co*>
Cc: <techdiver@aquanaut.com>
Subject: RE: USDCT FAKES AND COPIES - THE JOKE'S ON YOU
Date: Thu, 30 Jul 1998 00:11:58 -1000
>       For one thing, many of the rebreathers out there may be attempted
> copies of the Cis Lunar superficially, but what they all really are,
> including the Cis Lunar, are crude attempts to copy the Navy's MK-18,
> EX-19, and one other machine that have been in the domain of EDU for
> quite some time.

This is pretty funny.  I've seen this misconception before.  The only thing
that doesn't make sense, however, is that Bill Stone published a series of
articles outlining the basic design of his rebreather, long before he even
knew the EX-19 existed.  So, let's see: The USN has a top-secret rebreather
development program, and Bill Stone publishes his ideas all over the place.
If any copying was done, in which direction do you think the copying went?

My honest answer? I don't think either tried to do any copying.  I see
convergencies in nature all the time. It's no surprise that clever engineers
will arrive at the same optimal solution to a specific problem.

>       I remember seeing a discussion by Dick Pile and others of an
> expedition where they were diving CCR's in the ocean, and Pile went over
> some events that occurred and his response to them. This fellow Pile has
> been diving these shade tree units for years, and apparently knows how to
> dodge the bullet. However, in that one instance where this fellow
> attempted to tell us the real story on using these things, the
> manufacturer jumped out onto the internet for the first time ever and
> hammered him for being an idiot and called it "Diver Error". The Copier
> and Faker spoke . What does this tell you?

Huh?  Explain to me how my leaving a drain port open on the bottom of the
canister housing is anything *BUT* diver error. But of course, I was able to
recover a TOTAL flood in mid-dive and complete the decompression in
fully-closed circuit mode with a fully-functional rebreather.  I didn't even
have to repack my LITHIUM HYDROXIDE for the next day's diving, because the
WATERPROOF CANISTER kept it safe and dry even with a TOTAL LOOP FLOOD.  But
I suppose that trick was just another copy of the EX-19 - right?

But, since this is clearly a troll, I'll let it go at that.

Aloha,
Rich

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