A heat dissipating device includes: a container body defining an inner space therein and having a fluid passage and opposite upper and lower walls; a working fluid received in the inner space in the container body; a wick structure mounted in the inner space; and a sealing material that seals the fluid...http://www.google.com/patents/US7469740?utm_source=gb-gplus-sharePatent US7469740 - Heat dissipating device