goggles cabinet

Date view Thread view Subject view Author view Attachment view

From: Geoff Ruth (gruth@leadershiphigh.org)
Date: Mon Jan 27 2003 - 11:58:58 PST 

Message-Id: <a05010404ba5b3f65ecfd@[192.168.1.25]>
Date: Mon, 27 Jan 2003 11:58:58 -0800
From: Geoff Ruth <gruth@leadershiphigh.org>
Subject: goggles cabinet

Al,

Thanks for the details. Here are some additional questions:
1. Is there a reason that you used a metal cabinet instead of wood?
2. Where did you purchase the germicidal UV lamps?
3. How many lamps did you use in the cabinet? One for each rack of goggles?
4. Dumb question . . . What is an interlock? How did you wire it to the timer?
5. Does it matter how the goggles are oriented inside the case? IE,
will the UV kill germs at any angle in relation to the goggles?

Thanks a lot!
Geoff

>
>
>Greetings Geoff:
>
>I made my sterilizing cabinet from an old metal kitchen cabinet
>obtained for $6 from Urban Ore in Berkeley. I put a new coat of
>white paint inside and out then mounted pegs to hold the safety
>goggles on the inside back after the shelves were removed. The
>germicidal UV lamps were easy to get and worked in regular
>fluorescent lamp holders I picked up at Home Depot. Also at HD I
>picked up a timer to turn the lamps off after a period of time so
>the cabinet would not run continuously. Interlocks on the doors
>were added so that the UV could not be generated while the doors
>were open. The whole project was less than $50 which I paid myself
>because cheap SFUSD could not find the money in the budget (each
>teacher was allotted a magnificent sum of $36 per year for all
>classes combined). If you need more details, I will supply them.
>
>Al Sefl
>Mr. Germ Conscious himself...
>Thirty-three years of teaching without a major student injury...
>Except to some of their GPAs...

Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.3 : Mon Aug 04 2003 - 16:18:12 PDT