Application of Wesley Nathaniel Karlson

ALMOND, Judge.

Appellant appeals from an adverse decision of the Board of Appeals which affirmed the examiner’s rejection of claims 8 and 9 of his application 1 for a patent on a chemical feeder. No claims were allowed.

The board in affirming the examiner's final rejection relied on the following references :

Stewart 1,362,153 December 14,1920.

Shuldener 2,703,176 March 1, 1955.

Claim 8 is illustrative and reads as follows:

“8. In a chemical feeder, a chemical tank having a bottom wall with upwardly extended sides defining a clear and unobstructed interior space within which a supply of soluble…