The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 1997
Filed:
Feb. 27, 1996
George A Meyer, IV, Conestoga, PA (US);
Scott D Garner, Lititz, PA (US);
Thermacore, Inc., Lancaster, PA (US);
Abstract
The disclosure is for a heat pipe in the form of a simple foil envelope and a method of constructing such a heat pipe. Two plastic coated metal foil sheets are sealed together on all four edges to enclose a semi-rigid channeled sheet of plastic foam, and the envelope is evacuated and loaded with a suitable quantity of liquid to act as a heat pipe. Despite the use of the essentially poor thermally conductive materials such as the plastic coating on the surface of the casing and the foam plastic for the wick, the apparatus operates well as a heat spreader for an integrated circuit chip placed in contact with the envelope surface. The heat is transferred across the thin plastic coating with only a small temperature differential, and the foam plastic wick with channels efficiently transports condensed liquid back to the heat input location for evaporation.