In re Dalzell

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the action of the examiner in rejecting as unpatentable over the disclosure of the prior art claims 1 to- 4 and 6 to' 8 inclusive constituting all the claims in appellant’s application for a patent on a sanitary pip© coupling designed to handle liquid food stuffs such as dairy products which are passed through the coupled pipes uhder sub-atmospheric pressure.

Claims 1 and 6 are illustrative and sufficiently descriptive of appellant’s alleged invention. They read—

1. In a device of the class…