All rights under U.S. Patent 4,638,194 are hereby fully reserved by Peter D. Keefe, who is sole owner thereof.  No process may be performed and no structure may be constructed which infringes any claim of U.S. Patent 4,638,194 without the written permission of Peter D. Keefe.


    All materials posted at Keefengine.com are copyright protected.  With the exception of Journal article reprints (see Citations) which are reproduced at Keefengine.com with permission of the respective copyright holders, all materials at Keefengine.com are Copyright 2000 by Peter D. Keefe.  All rights are reserved.  No reproduction of any kind is permitted, except that a limited license is hereby granted to make free reproduction for scholarly research purposes only.  All other permissions must be requested. 


Please direct  your permission request to:

                    Peter D. Keefe
                    Keefe & Associates
                    24405 Gratiot Avenue
                    Eastpointe, MI  48021   USA
                    Facsimile to:  586-775-2769
                    E-mail to:  PDK@Keefengine.com.


    Peter D. Keefe hereby reserves "intent to use" trademark rights to the following terms as used at this website: "Keefengine", "Coherent Magneto-Caloric Effect", "Thermosynthesis", "EnTraP", "HeaTraP", "Transmogrification", "Transmogrific Point", "Segment" and "Envelopment".

    Use by everyone of these terms is freely encouraged in connection with the subject matter of this website.