Thanks for messages .
Still searching on airbags and such.
Will post again later, but any lead, hint link is appreciated.

Thanks Mike


"SISC" wrote in message
...
Where could someone go with a good idea about how to prevent a floating
but damaged sinking boat from floundering?
This is not a nut case idea; I am an engineer und should know better.
Done some checking with patent office and not even similar idea has been
filed.
I went through an American and Canadian patent process and hold two; but
they cost me more than what I got back!
I have not disclosed to anyone on this idea however. .
Any interested ones out there. Like Steve Callahan
Thanks Mike S. Dipl.Ing.FH

"SISC" wrote in news:A69Ke.72553$Ph4.2259242@ursa-
nb00s0.nbnet.nb.ca:

Thanks for messages .
Still searching on airbags and such.
Will post again later, but any lead, hint link is appreciated.

Thanks Mike


I've never figured out why yachts don't HAVE airbags that deploy
automatically and fill the cabin from the gas canisters when the switch on
the inside of the cabin overhead touches seawater.....making them
unsinkable!

"Stay with the boat", they always tell you. "Stay with the boat".

--
Larry

I can produce function prototype,but need partner mike
"Larry" wrote in message
...
"SISC" wrote in news:A69Ke.72553$Ph4.2259242@ursa-
nb00s0.nbnet.nb.ca:

Thanks for messages .
Still searching on airbags and such.
Will post again later, but any lead, hint link is appreciated.

Thanks Mike


I've never figured out why yachts don't HAVE airbags that deploy
automatically and fill the cabin from the gas canisters when the switch on
the inside of the cabin overhead touches seawater.....making them
unsinkable!

"Stay with the boat", they always tell you. "Stay with the boat".

--
Larry

I've never figured out why yachts don't HAVE airbags that deploy
automatically and fill the cabin from the gas canisters when the switch on
the inside of the cabin overhead touches seawater.....making them
unsinkable!



SISC wrote:
I can produce function prototype,but need partner

It's already been done. Problem: sailors are cheapskates and would
rather take the risk of sinking than pay for the system.

Do a google search for "Yachtsaver"... went bankrupt last year IIRC.

There are also a number of yachts built with positive flotation, ETAP &
Sadler notably. IMHO it would not be unreasonable to install positive
flotation on many small to medium size sailboats. It'd be some work, and
cost something, so maybe that's why nobody actually does it.

"The reason worry kills more people than work is that more people do it."

DSK

I also thought about this years ago. mostly for a masthead float for a
trimaran. I considered using calcium carbide that reacts with water to
produce LOTS of acetylene gas that would seriously inflate some kind of
bag. Of course acetylene can be explosive with a spark but you are
sinking anyway....... The calcium carbide would be fairly easy to
store as it comes as rock-like chunks but produces copious volumes of
gas.

I have also considerd adding foam floatation to my boat. She has many
little areas that are never used for anything whose total volume might
be enough.

wrote in message
ups.com...
I also thought about this years ago. mostly for a masthead float for a
trimaran. I considered using calcium carbide that reacts with water to
produce LOTS of acetylene gas that would seriously inflate some kind of
bag. Of course acetylene can be explosive with a spark but you are
sinking anyway....... The calcium carbide would be fairly easy to
store as it comes as rock-like chunks but produces copious volumes of
gas.

I have also considerd adding foam floatation to my boat. She has many
little areas that are never used for anything whose total volume might
be enough.


Why do you need a masthead float for a trimaran?
If your tri is any bigger than say 16ft, the only thing you would
accomplish, is breaking the mast.
A tri is designed to lay turtle, in the unlikely event she flips, providing
a huge life raft.
On her side. she would just present a huge bottom to be blown around by the
wind.
You have to really try hard to flip any decent sized tri.



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wrote in
ups.com:

I also thought about this years ago. mostly for a masthead float for a
trimaran. I considered using calcium carbide that reacts with water to
produce LOTS of acetylene gas that would seriously inflate some kind of
bag. Of course acetylene can be explosive with a spark but you are
sinking anyway....... The calcium carbide would be fairly easy to
store as it comes as rock-like chunks but produces copious volumes of
gas.



Any leak would kill all the people in the boat in their sleep...Nope.

--
Larry

wrote in
ups.com:

I have also considerd adding foam floatation to my boat. She has many
little areas that are never used for anything whose total volume might
be enough.



Airbags deployed with liquid freon would be very compact to store, non-
flammable and storage is at low pressure, unlike CO2. That'd work as soon
as you got past the government bureaucrats hell bent on maximizing freon
profits for a few big chemical companies.

My last batch of R-12 smuggled in from Aruba was made in Tennesee! We
Americans just can't buy it.

--
Larry

Larry,

You should consider converting to R134A. It works well, and can be purchased for
around ~3$-5$/can at any auto parts store. You can also buy it in 30lb canisters
without a license. The only downside to converting an old system designed for R12
or R22 is that you will need a new expansion valve. Also you may need a new compressor
to develop the higher pressure needed if your old compressor is tired.

If you want to be able to directly read the temperatures, you'll need a new set of
guages also, so there is some expense to converting over. However, when you are done
with the conversion you are back to the days of cheap and legal freon :-). Over time
you'll spend more than the conversion cost keeping an old R12 system going.


Don W.


Larry wrote:
wrote in
ups.com:


I have also considerd adding foam floatation to my boat. She has many
little areas that are never used for anything whose total volume might
be enough.




Airbags deployed with liquid freon would be very compact to store, non-
flammable and storage is at low pressure, unlike CO2. That'd work as soon
as you got past the government bureaucrats hell bent on maximizing freon
profits for a few big chemical companies.

My last batch of R-12 smuggled in from Aruba was made in Tennesee! We
Americans just can't buy it.

In article , Larry
wrote:

I've never figured out why yachts don't HAVE airbags that deploy
automatically and fill the cabin from the gas canisters when the
switch on the inside of the cabin overhead touches
seawater.....making them unsinkable!

There was such a company, but they've gone belly up. Don't know why, but
suspect that most boats that would have such a system also have a
liferaft of appropriate size. Some decks aren't very well attached to
the hull.

--
Jere Lull
Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD)
Xan's Pages: http://members.dca.net/jerelull/X-Main.html
Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/