Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8161759 | Method of and apparatus for transferring heat energy between a heat exchanging subsystem above the surface of the earth and material therebeneath using one or more coaxial-flow heat exchanging structures producing turbulence in aqueous-based heat-transfering fluid flowing along helically-extending outer flow channels formed therein | Michael Fraim | 2012-04-24 |
| 7377122 | Coaxial-flow heat exchanging structure for installation in the earth and introducing turbulence into the flow of the aqueoue-based heat transfer fluid flowing along the outer flow channel while its cross-sectional characteristics produce fluid flows therealong having optimal vortex characteristics that optimize heat transfer with the earth | Michael Fraim | 2008-05-27 |
| 7373785 | Geo-thermal heat exchanging system facilitating the transfer of heat energy using coaxial-flow heat exchanging structures installed in the earth for introducing turbulence into the flow of the aqueous-based heat transfer fluid flowing along the outer flow channel | Michael Fraim | 2008-05-20 |
| 7370488 | Geo-thermal heat exchanging system facilitating the transfer of heat energy using coaxial-flow heat exchanging structures installed in the earth for introducing turbulence into the flow of the aqueous-based heat transfer fluid flowing along the outer flow channel | Michael Fraim | 2008-05-13 |
| 7363769 | Electromagnetic signal transmission/reception tower and accompanying base station employing system of coaxial-flow heat exchanging structures installed in well bores to thermally control the environment housing electronic equipment within the base station | Michael Fraim | 2008-04-29 |
| 7347059 | Coaxial-flow heat transfer system employing a coaxial-flow heat transfer structure having a helically-arranged fin structure disposed along an outer flow channel for constantly rotating an aqueous-based heat transfer fluid flowing therewithin so as to improve heat transfer with geological environments | Michael L. Fraime | 2008-03-25 |
| 7343753 | Coaxial-flow heat transfer system employing a coaxial-flow heat transfer structure having a helically-arranged fin structure disposed along an outer flow channel for constantly rotating an aqueous-based heat transfer fluid flowing therewithin so as to improve heat transfer with geological environments | Michael L. Fraime | 2008-03-18 |
| 7093454 | Centrifugal heat transfer engine and heat transfer systems embodying the same | — | 2006-08-22 |
| 7010929 | Centrifugal heat transfer engine and heat transfer systems embodying the same | — | 2006-03-14 |
| 6964176 | Centrifugal heat transfer engine and heat transfer systems embodying the same | — | 2005-11-15 |
| 6948328 | Centrifugal heat transfer engine and heat transfer systems embodying the same | — | 2005-09-27 |
| 6334323 | Centrifugal heat transfer engine and heat transfer systems embodying the same | — | 2002-01-01 |
| 6321547 | Centrifugal heat transfer engine and heat transfer systems embodying the same | — | 2001-11-27 |
| 5906108 | Centrifugal heat transfer engine and heat transfer system embodying the same | — | 1999-05-25 |