Refrigeration – Processes – Employing diverse materials or particular material in...
Reexamination Certificate
2005-10-04
2005-10-04
Tyler, Cheryl J. (Department: 3744)
Refrigeration
Processes
Employing diverse materials or particular material in...
C062S498000, C062S502000, C252S067000
Reexamination Certificate
active
06951115
ABSTRACT:
The development of an alternate refrigerant composition which is free from a possibility of causing depletion of the ozone layer and capable of maintaining the performance of a conventional refrigerating circuit without modifying the circuit is desired. An object of the present invention is to provide such a refrigerant composition and a refrigerating circuit using the refrigerant composition. A refrigerant composition of the present invention comprises R245fa (CF3CH2CHF2), R125 (CHF2CF3), R508A (R23/R116:39/61) and R14 (tetrafluoromethane: CF4). Thus, the refrigerant composition has no possibility of causing depletion of the ozone layer. Further, since the composition is noncombustible, possible combustion can be prevented even if it leaks.
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Darby & Darby
Leung Richard L.
Sanyo Electric Biomedical Co. Ltd.
Sanyo Electric Co,. Ltd.
Tyler Cheryl J.
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