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Michael V. Caldwell Inventions, Patents and Patent Applications . . . The system comprises an improved muffler having a vortex inducing filter mechanism inside the muffler chamber that facilitates separation of engine exhaust air into cool and hot gas streams and encloses a filter element that filters out particulate matter and other pollutants
(12) United States Patent One type of system that has been developed to minimize the amount of pollutants, including nitrogen oxide (NOX) and like gases, that are discharged from internal combustion engines is an exhaust gas recirculation system
Michael W. Caldwell Inventions, Patents and Patent Applications . . . Michael W Caldwell has filed for patents to protect the following inventions This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO)
The Vortex–Acoustic Bio‑Refinery (VABR): A Modular Low‑Pressure System . . . The Vortex–Acoustic Bio‑Refinery (VABR) is a conceptual modular system designed to convert municipal sewage sludge into ASTM‑compliant biodiesel using a combination of vortex‑based solids concentration, dual‑frequency acoustic processing, and catalyst‑assisted chemical transformation