Thomas Henry Moray
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Thomas Henry Moray (August 28, 1892 - May 18, 1974) was an inventor from Salt Lake City, Utah. He received a US patent 2,460,707 in February 1949, after a process of 17 years in discussions with the patent office. The title of the patent is "Electrotherapeutic Device", and although radiotherapy is mentioned, no details are given.
Moray's invention was not commercially successful because of the high manufacturing cost compared to the amount of power produced and the small market for atomic powered batteries. Many unsubstantiated claims have been made in connection with attempts to sell books or ask for money. One claim was five kilowatts of electricity produced from a device costing sixty thousand dollars to build in 1926. If true, it represents a high cost for electricity compared to other sources, except in special situations like space research 
A counter culture has developed with claims about alternative energy, citing Moray as a leading example of lost opportunity and of free energy suppression. Since Moray patented his invention with detailed drawings and further described his ideas in books he wrote, the economics and technical operation can be understood with conventional science and engineering. A substantial reduction of manufacturing cost would be required to make wider use of power supplies based on Moray's invention. Vacuum tube circuits have been replaced by solid state electronics in most applications.
- "Moray Web".
- D. J. Anderson, "NASA Radioisotope Power Conversion Technology NRA Overview," National Aeronautics and Space Administration, NASA/TM-2005-213981, November 2005.
- "cheniere.org". Note that this source appears untrustworthy, which is precisely the point! Free energy suppression is a conspiracy theory.