Appeal No. 1997-2099
Application No. 08/233,468
BACKGROUND
The claimed invention is directed to absorbent refrigerant composition
comprising an aqueous solution of zinc bromide, lithium bromide and hydroxide ions.
The absorbent composition is said to be used in the high temperature circuit of a dual
circuit triple effect heat exchange apparatus. (Specification, pg. 1). According to
Appellant, the invention is directed to an improved absorbent refrigerant composition
which can meet the solubility, temperature, and pressure requirements of the high
temperature circuit, but which does not corrode the high temperature circuit
components. (Brief, pg. 4). Claim 1 which is representative of the invention is
reproduced below:
1. An absorbent refrigerant composition comprising an aqueous
solution of zinc bromide and lithium bromide with an added
amount of hydroxide, wherein the weight ratio of zinc bromide to
lithium bromide in said solution is from about 1.6 to about 1.9, the
amount of hydroxide added ranges from about .0015 to about .015
gram per gram of total contained salt, and the composition is
essentially free of calcium.
THE REJECTION
The Examiner entered the following grounds of rejection:
Claims 11 and 17 to 20 are rejected as being unpatentable under 35 U.S.C.
§ 112, first paragraph, “as the specification does not contain a written description
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