<html><head></head><body><p dir="ltr">No. It means that you must make two distinct actions in order to release the weight at all. i.e. a single lever pull should not be able to drop your weight, but opening a safety cover over a release mechanism would constitute the two actions, for example.</p>
<p dir="ltr">Sean<br>
</p>
<br><br><div class="gmail_quote">On September 13, 2017 9:03:20 AM MDT, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div style="font-family:Arial, sans-serif; font-size:10pt;"><div>Sean, Not sure I'm understanding " two distinct positive mechanical actions" ? Does that mean you need to have two ways of releasing your drop weight ?</div><div> </div><div>Brian<br /><br />--- personal_submersibles@psubs.org wrote:<br /><br />From: "Sean T. Stevenson via Personal_Submersibles" <personal_submersibles@psubs.org><br />To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br />Subject: Re: [PSUBS-MAILIST] Drop weight<br />Date: Wed, 13 Sep 2017 08:22:19 -0600<br /><br /></div><p dir="ltr">IIRC, the rules require at least two distinct positive mechanical actions to initiate a drop weight release. Such a corrosion fuse would seem to defy that requirement.</p></div>
<p dir="ltr">Sean<br />
<br /><br /></p><div>On September 12, 2017 6:07:03 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote style="margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">
<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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