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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Mmmm must get some “Don’t drill here” stickers for the expensive ones.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Sean T. Stevenson via Personal_Submersibles<br><b>Sent:</b> Tuesday, 7 October 2014 12:24 p.m.<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> Re: [PSUBS-MAILIST] bellows add<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p>In a rescue or recovery scenario with obviously disabled occupants (Thinking hypercapnia, hypoxia, cardiac arrest, etc.)? Get it open no matter what it takes. I'd probably look to loosen a fitting first, but in the absence of anything obvious, drilling a hole in an acrylic viewport takes no time at all.<o:p></o:p></p><p>Sean<o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On October 6, 2014 4:59:56 PM MDT, Hugh Fulton via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></p><pre><br>A point that I have been pondering is that DW's pull a vacuum and I plan to<br>pull a vacuum as is also possible with any other system. My question is in<br>the event of an emergency where the Sub is on the surface or brought to the<br>surface with an unconscious bod inside and a vacuum, then what methods are<br>available to get air back inside to allow surface support to get the hatch<br>to open. With a vacuum then it would be almost impossible to open the hatch<br>against the vacuum. Positive pressure is not a problem as a relief valve<br>will compensate automatically. If the relief valve is easily accessible<br>then it can be unscrewed. What others are being used? Hugh<br><br><br><br>-----Original Message-----<br>From: Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>]<br>On Behalf Of hank pronk via Personal_Submersibles<br>Sent: Tuesday, 7 October 2014 11:27 a.m.<br>To: Personal Submersi!<o:p></o:p></pre><pre> bles<o:p></o:p></pre><pre>General Discussion<br>Subject: Re: [PSUBS-MAILIST] bellows add<br><br><br>Alan,<br>I am sure they have a system that reacts to high O2 levels etc etc I think<br>my situation is unique and a bellows add does not makes sense.<br>Hank<o:p></o:p></pre><pre style='text-align:center'><hr size=2 width="100%" align=center></pre><pre><br>On Mon, 10/6/14, Alan James via Personal_Submersibles<br><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br> Subject: Re: [PSUBS-MAILIST] bellows add<br> To: "Personal Submersibles General Discussion"<br><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> Received: Monday, October 6, 2014, 6:19 PM<br> <br> I agree<br> Hank,I think<br> you should email Phil & warn him:)I have thought that if there was an air<br>leak in to the cabin the bellows add systemwould stop adding O2. They have<br>a manual system integrated into the bellows addunit & a continual feed of<br>O2 regardless of the belows. They would have O2 monitorswith set point<br>alarms if the O2 % was too high or low but how the!<o:p></o:p></pre><pre> y would<o:p></o:p></pre><pre>address analarm<br>issue I don't know.I like Cliff's method of having a set volume flowing in<br>(as per<br> DW) & O2 addition generatedby O2<br> measurements opening an O2 solenoid valve via a PLC. This is similar to<br>arebreather & James Cameron's system on the Deepsea Challenger.Don't get<br>me going on the coffee issue. I buy green beans & roast them. Would<br>growthem if we had the climate. My side of Auckland had power. Hugh lives<br>on the Dark side.Alan<br> <br> <br> From: hank pronk via<br> Personal_Submersibles<br> <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> <br> To:<br> <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br> Sent: Tuesday, October<br> 7, 2014 10:07 AM<br> Subject:<br> [PSUBS-MAILIST] bellows add<br> <br> <br> I have been pondering the idea of a bellows add system for Gamma. I am<br>not sure how the DW deals with pressure change due to temperature change. <br>When I am diving Gam!<o:p></o:p></pre><pre> ma the<o:p></o:p></pre><pre>temperature swing is huge causing a big<br>negative pressure inside. A bellows add system would be dumping O2 in like<br>mad. Does the DW have an automatic O2 over ride or an automatic air<br>release to compensate. Does the pilot manually add air to avoid O2 build<br>up.<br> When I surface after a dive without the scrubber or O2 feeding in, I have<br>to open my hatch vent valve for what seems like forever to equalize the sub<br>to open the hatch. It is getting better with the air temps dropping. I<br>can't wait to go for a dive when it is snowing. <br> Hank<o:p></o:p></pre><pre style='text-align:center'><hr size=2 width="100%" align=center></pre><pre><br> Personal_Submersibles mailing list<br> <a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br> <br> <br> <br> <br> -----Inline Attachment Follows-----<br> <o:p></o:p></pre><pre style='text-align:center'><hr size=2 width="100%" align=center></pre><pre><br> Personal_Submersibles mailing list<br><br><o:p></o:p></pre><pre style='margin-bottom:12.0pt'><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br> <o:p></o:p></pre><pre style='text-align:center'><hr size=2 width="100%" align=center></pre><pre style='margin-bottom:12.0pt'><br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br> <br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature<br>database 10521 (20141006) __________<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a href="http://www.eset.com">http://www.eset.com</a><br> <br> <br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature<br>database 10521 (20141006) __________<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a href="http://www.eset.com">http://www.eset.com</a><br> <br><br><o:p></o:p></pre><pre style='text-align:center'><hr size=2 width="100%" align=center></pre><pre><br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></pre></div><p class=MsoNormal><br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature database 10521 (20141006) __________<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a href="http://www.eset.com">http://www.eset.com</a><o:p></o:p></p></div> <BR><BR>__________ Information from ESET NOD32 Antivirus, version of virus signature database 10521 (20141006) __________<BR><BR>The message was checked by ESET NOD32 Antivirus.<BR><BR><A HREF="http://www.eset.com">http://www.eset.com</A><BR> </body></html>