<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1505346657474_3161"><span>Brian,</span></div><div id="yui_3_16_0_ym19_1_1505346657474_3161"><span><br></span></div><div id="yui_3_16_0_ym19_1_1505346657474_3161"><span id="yui_3_16_0_ym19_1_1505346657474_3257">This is a link to the company that supplied the galvanic timers for the Deep Sea Challenger. I'm sure they be happy to give you some specs-</span></div><div id="yui_3_16_0_ym19_1_1505346657474_3161"><span><br></span></div><div id="yui_3_16_0_ym19_1_1505346657474_3161" dir="ltr"><span id="yui_3_16_0_ym19_1_1505346657474_3278"><a href="http://www.underseareleases.com/" class="enhancr2_37c9119b-ddf4-dddc-a9f9-92422e4d33d1" id="yui_3_16_0_ym19_1_1505346657474_3277">Galvanic Timed Releases - International Fishing Devices</a><br></span></div><div id="yui_3_16_0_ym19_1_1505346657474_3161" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1505346657474_3350"><br></div><div id="enhancr2_37c9119b-ddf4-dddc-a9f9-92422e4d33d1" class="yahoo-link-enhancr-card ymail-preserve-class ymail-preserve-style" style="max-width:400px;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;" contenteditable="false" data-url="http://www.underseareleases.com/" data-type="yenhancr" data-category="article" data-embed-url="" data-size="medium" dir="ltr"> <a href="http://www.underseareleases.com/" 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url('https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png') repeat left top;height:200px;" background="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png" bgcolor="transparent" valign="top" id="yui_3_16_0_ym19_1_1505346657474_3306"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png"/><v:textbox inset="0,0,20px,0"><![endif]--> <table class="yahoo-ignore-table" height="185" style="width:100%;height:185px;min-height:185px;" id="yui_3_16_0_ym19_1_1505346657474_3305"> <tbody id="yui_3_16_0_ym19_1_1505346657474_3304"><tr id="yui_3_16_0_ym19_1_1505346657474_3303"> <td class="card-richInfo2" style="text-align:left;text-align:left;padding:15px 0 0 15px;vertical-align:top;" id="yui_3_16_0_ym19_1_1505346657474_3302"> </td> <td class="card-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top;" id="yui_3_16_0_ym19_1_1505346657474_3343"> <div class="card-share-container"></div> </td> </tr> </tbody></table> <!--[if gte mso 9]></v:textbox></v:rect><![endif]--> </td> </tr> </tbody></table> </td> </tr> <tr id="yui_3_16_0_ym19_1_1505346657474_3398"> <td id="yui_3_16_0_ym19_1_1505346657474_3397"> <table class="card-info yahoo-ignore-table" align="center" cellpadding="0" cellspacing="0" border="0" style="background:#fff;position:relative;z-index:2;width:95%;max-width:380px;border:1px solid #e0e4e9;border-bottom:3px solid #000000;margin-top:-40px;margin-left:auto;margin-right:auto;"> <tbody><tr> <td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;"> </td> <td style="vertical-align:middle;padding:16px 12px;width:99%;"> <h2 class="card-title" style="font-size: 16px; line-height:19px; margin:0 0 4px 0;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;word-break:break-word;">Galvanic Timed Releases - International Fishing Devices</h2> <div class="card-description" style="font-size:11px;line-height:15px;color:#999;word-break:break-word;">For over 40 years, International Fishing Devices, Inc. has been the designers and manufacturers of Galvanic Time...</div> </td> <td style="text-align:right;padding:16px 12px 16px 0;"> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </a></div><div id="yui_3_16_0_ym19_1_1505346657474_3402"><br></div><div><br></div><div id="yui_3_16_0_ym19_1_1505346657474_3403">Greg Cottrell</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1505346657474_3165"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1505346657474_3271" style="display: block;"> <div style="font-family: verdana, helvetica, sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1505346657474_3270"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1505346657474_3269"> <div dir="ltr" id="yui_3_16_0_ym19_1_1505346657474_3268"> <font size="2" face="Arial" id="yui_3_16_0_ym19_1_1505346657474_3267"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, September 13, 2017 7:26 PM<br> <b id="yui_3_16_0_ym19_1_1505346657474_3405"><span style="font-weight: bold;" id="yui_3_16_0_ym19_1_1505346657474_3404">Subject:</span></b> Re: [PSUBS-MAILIST] Drop weight<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1505346657474_3406"><br><div id="yiv3934608952"><div id="yui_3_16_0_ym19_1_1505346657474_3409"><div style="font-family:Arial, sans-serif;font-size:10pt;" id="yui_3_16_0_ym19_1_1505346657474_3408"><div id="yui_3_16_0_ym19_1_1505346657474_3407">Interesting, They don't really give any specs on the amount of weight it can carry though.</div><div id="yui_3_16_0_ym19_1_1505346657474_3411"> </div><div id="yui_3_16_0_ym19_1_1505346657474_3410">Brian<br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: james cottrell via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] Drop weight<br clear="none">Date: Wed, 13 Sep 2017 22:42:53 +0000 (UTC)<br clear="none"><br clear="none"></div><div class="yiv3934608952yqt3844763982" id="yiv3934608952yqt54915"><div style="color:rgb(0, 0, 0);font-family:verdana, helvetica, sans-serif;font-size:13px;background-color:rgb(255, 255, 255);"><div><span>You can buy them off the shelf here-</span></div><div><span><br clear="none"></span></div><div dir="ltr"><span><a rel="nofollow" shape="rect" target="_blank" href="http://www.lfsmarineoutdoor.com/time-releases-galvanized-1-7-day.html?gclid=EAIaIQobChMInv3llJ2j1gIVjFqGCh3nCwZrEAQYASABEgI28PD_BwE">http://www.lfsmarineoutdoor.com/time-releases-galvanized-1-7-day.html?gclid=EAIaIQobChMInv3llJ2j1gIVjFqGCh3nCwZrEAQYASABEgI28PD_BwE</a><br clear="none"></span></div><div dir="ltr"><br clear="none"></div><div dir="ltr">You can also use something called a "burn wire" that burns through when current is applied.</div><div dir="ltr"><br clear="none"></div><div dir="ltr">Greg Cottrell</div><div><br clear="none"><br clear="none"></div><div style="display:block;"> <div style="font-family:verdana, helvetica, sans-serif;font-size:13px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"> <font face="Arial" size="2"> </font><hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Wednesday, September 13, 2017 11:07 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Drop weight<br clear="none"> </div> <div><br clear="none"><div><div><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>Greg ,</div><div> Do you happen to know the make up of the corrosion mechanism that was used? </div><div> </div><div>Brian<br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: james cottrell via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] Drop weight<br clear="none">Date: Wed, 13 Sep 2017 00:36:53 +0000 (UTC)<br clear="none"><br clear="none"></div><div><div style="color:rgb(0, 0, 0);font-family:verdana, helvetica, sans-serif;font-size:13px;background-color:rgb(255, 255, 255);"><div><span>Brian,</span></div><div><span><br clear="none"></span></div><div><span>Corrosion triggered weight release was one of the safety features incorporated into James Cameron's sub Deep Sea Challenger.</span></div><div><span><br clear="none"></span></div><div><span>Greg</span></div><div><br clear="none"><br clear="none"></div><div style="display:block;"> <div style="font-family:verdana, helvetica, sans-serif;font-size:13px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"> <font face="Arial" size="2"> </font><hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> PSubs <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Tuesday, September 12, 2017 8:10 PM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> [PSUBS-MAILIST] Drop weight<br clear="none"> </div> <div><br clear="none"><div><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>Hi All,</div><div> I had an idea for an emergency drop weight, and it would also work for a depth testing function. Basically it would be a corrosion triggered release. Every time you go on a planned dive you insert a anode type material ( a bi-metal corrosion bolt) which would be scheduled to corrode out in what ever time frame you want. So in addition to your regular drop weight you would also have this back up device designed to disintegrate at a calculated time. I know it would work in salt water , for fresh water you may have to use some kind of different materials. I have a friend who's father use to do some studies for Scripps and the devised some fish traps that would float to the surface after a certain time period.</div><div> </div><div>Brian</div></div>
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