The vertical bar between the 40 and the 30, as I have already said, is purely a separator. a
caprice de typographie, it's the sort of thing that 'cool' places do. It has no significance other than as a visual signifier of coolness. It is not meant to be pronounced, and the operators of the restaurant, Searcy's, use other separators in their publicity material.
(I see they don't know the difference between 'discrete' and 'discreet'.)
A cool name/logo combination is something you find in this sort of place. Another example is the Zerodegrees chain of restaurants/bars