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Anonymous Poster

Retrieving Items from Multi-Tiered Liquid Nitrogen Tanks

03/03/2010 10:28 AM

I wonder if anyone knows where "grabbing" tools for retrieving materials in lower levels of multiple tier liquid nitrogen tanks can be obtained? I am having a difficult time locating any companies that manufacture these. Any help would be very much appreciated.

Thank you
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Randall
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#1

Re: Retrieving Items from Multi-Tiered Liquid Nitrogen Tanks

03/04/2010 6:42 AM

Is this a regular problem or have you dropped something?

Would a magnet on a piece of suitable cord do the trick?

How big are/is the items/material?

How far down do you need to reach?

How easy is access?

Are you thinking of making something? Should you be?

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Doorman
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#2

Re: Retrieving Items from Multi-Tiered Liquid Nitrogen Tanks

03/04/2010 2:20 PM

I wonder why someone would drop something into a tank of LN2, unless you wanted it to stay there...

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Randall
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#3
In reply to #2

Re: Retrieving Items from Multi-Tiered Liquid Nitrogen Tanks

03/05/2010 2:31 AM

I've been trying to figure out what "Multi-Tiered" means. I'm guessing that the "items" are held on "shelves" attached to a central shaft which protrudes above the surface:-

The "items" might be biological samples or something. If one of the containers has fallen off a shelf, you can't get the "holder" back in the tank.

Pure speculation.

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Anonymous Poster
#4

Re: Retrieving Items from Multi-Tiered Liquid Nitrogen Tanks

01/17/2011 2:31 PM

It looks like tf dewars makes some sort of grippy item:

http://commerce.cryodewars.com/product_info.php?cPath=6_14&products_id=32&osCsid=qi0l1aabq8us47n5v6v6c0sgs6
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Previous in Forum: how to measure hemoglobin concentration with pic microcontrller?   Next in Forum: Can We Hear Our Own Blood Flow?

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