Re: Beyond Petroleum

[Frederick Sparber]

Pulse Tube Cryogenic Coolers.

 

http://irtek.arc.nasa.gov/CryoPTHist.html

----- Original Message -----

From: Frederick Sparber

To: vortex-l

Sent: 4/29/2006 2:28:51 AM

Subject: Re: Beyond Petroleum

For LN2 and LNG storage, Terry.   :-)

 

http://patft.uspto.gov/netahtml/srchnum.htm

 

US Patent 6,021,043  Pulse Tube Cryogenic Refrigerator