.~.~> Pumps in parallel flow paths with common inflow or outflow {1}
DEFINITION
Classification: 417/2
(under subclass 1) Subject matter comprising at least two pumps which are either (1) independently driven by separate drive motors, (2) adapted to be supplied from separate sources, or (3) adapted to deliver to separate destinations.
(1) Note. For purposes of this definition, a single cylinder having a pumping member (e.g., piston) which serves to divide the cylinder into two pumping chambers is considered to comprise plural pumps if the pump chambers are adapted to deliver fluid to separate destinations or receive fluid from separate sources.
(2) Note. To be included under this definition, the plural pumps must supply fluid for external use (i.e., one may not be a mere auxiliary of another such as a lubricant, coolant, or priming pump).
(3) Note. An entrainment-type pump (e.g., jet pump) has not been construed as motor driven and consequently the combination of a condition responsive motor driven pump and jet pump is not included under part (1) of the above definition and such combination would be classified here only if the motor driven pump and jet pump respectively deliver to separate destinations or receive fluid from separate sources.
