(under subclass 65) Apparatus comprising a plurality of discrete pumps of different basic types.
(1) Note. This definition does not include a plurality of pumps of different basic types if one is a mere auxiliary or ancillary of the other (e.g., lubricant or cooling pump for main pump). However, a pump whose sole disclosed function may be to prime the other pump is not considered a mere auxiliary and this combination is included in this definition.
(2) Note. This definition includes as different basic-type pumps which may both be of the fluid contact or entrainment types such as, for example, jet pump and aerated column, pneumatic displacement and jet, etc.
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69, for diverse pumps one of which is the liquid ring type.
