Appeal No. 1999-1778
Application No. 08/888,365
invention relates to the configuration of the inner surface of
the heat exchanger tubes. According to appellants, the present
invention provides a new configuration on the inner surface of a
heat exchanger tube that improves heat transfer efficiency.
Independent claim 1, a copy of which is found in an appendix to
appellants’ brief, is illustrative of the appealed subject
matter.
The following references of record are relied upon by the
examiner in support of rejections under 35 U.S.C. § 103:1
Booth 5,275,234 January 4, 1994
Onishi et al 4,480,684 November 6, 1984
(Onishi)
Han et al 5,361,601 November 8, 1994
(Han)
Fujimoto et al 63-172893 July 16, 1988
(Fujimoto)
Uchida et al (Symposium), “Heat Transfer Coefficient of HFC’s
Non-Azeotropic Refrigerant Mixtures in a Horizontal Grooved
Tube” 30th National Heat Transfer Symposium of Japan, Vol. 1
(May 5, 1993), pp. 33-339.
The following rejections under 35 U.S.C. § 103 are before
1Our understanding of the Japanese language references is
derived from translations prepared in the Patent and Trademark
Office. Copies of the translations are attached to this
opinion.
2
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