Kingwin RVT-9225 Heatpipe Direct Touch CPU Cooler Review
 

The idea of exposed heatpipes makes sense. Besides the transferal of heat between the heatsink and heatpipes, the heatsink itself can be made of aluminum… allowing lower manufacturing cost, and less weight. We’ll see just how well this new idea works.

http://www.ocia.net/reviews/rvt-9225/page1.shtml