Integral locking mechanism for reciprocating pumps

A dispensing pump capable of being selectively locked to prevent actuation, the pump comprising:

• a reciprocating pump engine configured to draw one or more fluids from a container and dispense a fluid from an outlet;
• and
• a locking assembly made entirely of polymeric components which remains permanently affixed to the dispensing pump;
• an actuator defining the outlet and configured to reciprocate in conjunction with the reciprocating pump engine;
• a closure cap attached to the container and having a peripheral stopper;
• wherein the locking assembly includes:
• i) a locking collar having a hollow cylinder coaxially receiving at least a portion of the reciprocating pump engine and at least one axial stopper disposed on an inner facing of the hollow cylinder, said locking collar interposed between the actuator and the closure cap and rotatable relative to the closure cap so that, when the at least one axial stopper is aligned with the peripheral stopper in a locked position, the actuator will not reciprocate and ii) one or more tamper evident frangible bridges that are initially and integrally formed between the locking collar and at least one of the actuator and the closure cap, said one or more tamper evident frangible bridges all configured to break without separating from the locking assembly and the actuator and/or the closure cap;
• and
• wherein the reciprocating pump engine is configured so as to seal and prevent loss of the fluid from the container when the locking collar is in the locked position.