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RE: [PSUBS-MAILIST] Emile's Overpressure Valve



Here I a drawing for you. Same type works fine on Peppers but this one is bigger due to hull volume(about 2 cubic meters)

 

 

I was also thinking about to make a dome hold-down spring loaded so it can act like a large overpressure valve. Is this done before and with what results.

 

Overpressure valve is a useful thing but on the other hand a extra hole in your sub..

 

Emile

 


Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens Brent Hartwig
Verzonden: zondag 14 december 2008 6:36
Aan: PSUBSorg
Onderwerp: [PSUBS-MAILIST] Emile's Overpressure Valve

 

Emile your SS overpressure valve you have a picture of on your site is very interesting. Do you have any more pictures of it when taken apart? I would like to see the seal on it if you don't mind.  It looks like a larger metal version of the valve I found on my friends inflatable pontoon boat.  I was thinking of an idea for making a piston vent valve for my MBT's a couple of days ago and when I got to my friends place that same day I found this valve that worked much like I was thinking, except the valve would seal in reverse of what it does, just like Vance's mushroom valves. Here are some pictures of that valve on the pontoon boat.

 
http://cid-5085d10eb6afe47c.skydrive.live.com/browse.aspx/Inflatable%20Pontoon%20Spring%20Piston%20Valve
 
That valves patent number is 4478587 and you can see it's details and drawings here.
 
http://www.google.com/patents?id=if05AAAAEBAJ&pg=PA2&source=gbs_selected_pages&cad=1_1#PPA1,M1
 
I found this valve for inflatable boats which I think show a number of the basic details Vance described for his mushroom vents. It is patent number 4927397 and you can see it's details and drawings here.
 
http://www.google.com/patents?id=13gnAAAAEBAJ&pg=PA2&dq=4478587&source=gbs_selected_pages&cad=1_1#PPA2,M1
 
One more for comparison.
 
http://www.google.com/patents?id=PaEJAAAAEBAJ&pg=PA3&dq=4478587&source=gbs_selected_pages&cad=1_1#PPA1,M1
 



Regards,

Szybowski





From: emile@airesearch.nl
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Drebbel to Kreideseesub
Date: Fri, 12 Dec 2008 13:26:49 +0100

Hi,

 

The plan of my earlier mentioned project “Drebbel” chanced a little.

The owner of the divebase at lake Hemmoor wanted to have a sub.

Specs are pretty close to my earlier plans so Carsten and I made a agreement with him. We design and produce parts and the sub will be sold as a building kit.

http://www.airesearch.nl/index_bestanden/Page424.htm  click on “kreidesseesub” I hope to inspire people with the picture log!

We hope to launch in summer 2009.

 

Best regards, Emile van Essen

 

 

 

 

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