Appeal No. 96-1367
Application No. 07/804,501
10. An improved gas cycle refrigerator comprising:
a refrigerant;
a heat regenerative material for performing heat-
exchange between said refrigerant and itself, wherein said
heat regenerative material has a composition consisting
essentially of:
AMz
where A is at least one rare earth element selected
from the group consisting of Y, La, Ce, Pr, Nd, Pm, Sm, Eu,
Gd, Tb, Dy, Ho, Er, Tm and Yb; M is at least one metal
selected from the group consisting of Ni and Co; and z is
0.001 to 9.0; and
an expansion means for expanding said refrigerant.
The examiner relies upon the following references as
evidence of obviousness:
Sahashi et al. (European '743) 0,193,743 Sep. 10, 1986
(European patent application)
British Patent (British '958) 1,458,958 Dec. 22, 1976
Appealed claims 10, 28 and 29 stand rejected under
35 U.S.C. § 112, first paragraph. In addition, the appealed2
claims stand rejected under 35 U.S.C. § 103 as being
unpatentable over European '743 in view of British '958.
2The examiner's rejection of claims 10-18 under
35 U.S.C. § 112, second paragraph, has been withdrawn (see
Supplemental Examiner's Answer).
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