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| Number | Title | Issue Date |
| 7861408 | Heat transfer surface for electronic cooling A cooling surface for cooling an electronic component, the surface having two sets of fins, each set of fins defining a set of channels, and a number of passageways connecting the sets of channels. The cooling surface can be attached to an electronic component, such... | 01/04/2011 |
| 7637012 | Method of forming protrusions on the inner surface of a tube A method of forming a plurality of protrusions on the inner surface of a tube to reduce tube side resistance and improve overall heat transfer performance. The method includes cutting through ridges on the inner surface of the tube to create ridge layers and lifting... | 12/29/2009 |
| 7509828 | Tool for making enhanced heat transfer surfaces An improved tool assembly for enhancing the surface of a heat transfer tube is provided. The tool assembly includes rods having cutting tips and positioned in rod guides which are slidably positioned in shafts provided in a tool holder. In an equilibrium state, the ... | 03/31/2009 |
| 7311137 | Heat transfer tube including enhanced heat transfer surfaces The invention relates to enhanced heat transfer surfaces and methods and tools for making enhanced heat transfer surface. Certain embodiments include a boiling surface that include a plurality of primary grooves, protrusions and secondary grooves to form boiling cav... | 12/25/2007 |
| 7254964 | Heat transfer tubes, including methods of fabrication and use thereof An improved heat transfer tube, an improved method of formation and an improved use of such a heat transfer tube is disclosed. The heat transfer tube includes an outer surface with a plurality of radially outwardly extending helical fins, the fins being grooved to d... | 08/14/2007 |
| 7178361 | Heat transfer tubes, including methods of fabrication and use thereof The present invention discloses an improved heat transfer tube, an improved method of formation, and an improved use of such heat transfer tube. The present invention discloses a boiling tube for a refrigerant evaporator that provides at least one dual cavity nuclea... | 02/20/2007 |
| 6883597 | Heat transfer tube with grooved inner surface An improved heat transfer tube and a method of formation thereof. The inner surface of the tube has a primary set of fins and an intermediate sets of fins positioned in the areas between the primary fins and at an angle relative to the primary fins. While intermedia... | 04/26/2005 |
