Dual component trigger sprayer which mixes components in discharge passage

A trigger sprayer which draws at least two separate liquids from two separate container volumes and mixes the liquids prior to their being dispensed by the sprayer, the sprayer comprising:

• a sprayer housing, the housing having a cap for attaching the housing to two separate container volumes containing two separate liquids;
• a fluid discharge passage in the housing, the discharge passage having a length with opposite ends with a nozzle orifice for dispensing liquid from the discharge passage at one end and an inlet opening for receiving liquid into the discharge passage at the opposite end, the inlet opening being positioned adjacent an end wall of the discharge passage that is stationary within the sprayer housing;
• a pair of separate liquid passages in the housing, each passage of the pair extending between the discharge passage inlet opening and one of the two separate container volumes containing two separate liquids when the sprayer housing is attached to the two separate container volumes;
• a pair of exit openings in the discharge passage end wall opening into the discharge passage at the inlet opening of the discharge passage, each liquid passage of the pair of separate liquid passages communicating with the discharge passage through one of the pair of exit openings in the discharge passage end wall;
• a pair of separate side-by-side pumps in the sprayer housing, each pump of the pair of pumps communicating with one of the pair of liquid passages;
• and
• a trigger pivotally connected to the sprayer housing for pivoting movement of the trigger relative to the housing, the trigger being operatively connected to portions of the pumps to operate the pumps upon pivoting movement of the trigger relative to the sprayer housing.

A trigger sprayer which draws at least two separate liquids from two separate container volumes and mixes the liquids prior to their being dispensed by the sprayer, the sprayer comprising:

• a sprayer housing, the housing having a cap for attaching the housing to two separate container volumes containing two separate liquids;
• a fluid discharge passage in the housing, the discharge passage having a length with opposite ends with a nozzle orifice for dispensing liquid from the discharge passage at one end and an inlet opening for receiving liquid into the discharge passage at the opposite end of its length;
• a pair of separate liquid passages in the housing, each passage of the pair extending between the discharge passage inlet opening and one of the two separate container volumes containing two separate liquids when the sprayer housing is attached to the two separate container volumes;
• a pair of separate pump chambers in the sprayer housing, each pump chamber communicating with one of the pair of liquid passages, and each pump chamber having a pump piston for reciprocating movement therein;
• a trigger mounted on the sprayer housing for pivoting movement of the trigger relative to the housing, the trigger being operatively connected to the pump pistons for causing reciprocating movement of each of the pump pistons in their respective pump chambers in response to pivoting movement of the trigger;
• and,
• a pair of separate vent chambers in the housing, each vent chamber of the pair communicating with one of the two separate container volumes containing two separate liquids when the sprayer housing is attached to the two separate container volumes;
• and
• each vent chamber having a vent piston mounted in the vent chamber for reciprocating movement therein between a first position of the vent piston in the vent chamber blocking venting of the container volume through the vent chamber to an exterior environment of the container volume, and a second position of the vent piston in the vent chamber opening venting of the container volume through the vent chamber to the exterior environment, the vent pistons being operatively connected to the trigger for causing reciprocating movement of the vent pistons in the vent chambers in response to pivoting movement of the trigger on the housing.

A trigger operated fluid dispenser for simultaneously dispensing first and second liquids separately stored in respective first and second fluid compartments, the dispenser comprising:

• a dispenser housing having a pair of side-by-side pump cylinders in fluid communication with the fluid compartments;
• a closure for mounting said dispenser housing to at least one fluid container;
• a pair of side-by-side pump pistons respectively reciprocable in the pair of pump cylinders, the pump pistons and pump cylinders defining variable volume pump chambers, the pump pistons and pump cylinders being configured so that reciprocation of the pump pistons within the pump cylinders draws the liquids from the fluid compartments into the pump chambers and discharges the drawn liquids from the pump chambers to a common location;
• a pusher connected to the pump pistons;
• and
• a trigger pivotally connected to the dispenser housing and configured for engaging the pusher for simultaneously erecting reciprocation of the pump pistons upon operation of the trigger.

A trigger operated fluid dispenser for simultaneously dispensing first and second liquids separately stored in respective first and second fluid compartments, the dispenser comprising:

• a dispenser housing having a pair of side-by-side pump cylinders in fluid communication with the fluid compartments, and a pair of separate discharge passageways for passage of the liquids from the pump cylinders to a common location;
• a closure for mounting said dispenser housing to at least one fluid container;
• a nozzle connected to the dispenser housing, the nozzle including a discharge orifice;
• a fluid spinner assembly generally at said common location and contained by the nozzle, the discharge passageways opening into said common location;
• a pair of side-by-side pump pistons reciprocable in the pump cylinders, the pump pistons and pump cylinders defining variable volume pump chambers, the pump pistons and dispenser housing being configured so that reciprocation of the pump pistons within the pump cylinders draws the liquids from the fluid compartments into the pump chambers, forces the drawn liquids through the discharge passageways to the common location where the first and second liquids are united before exiting through the discharge orifice as a spray;
• and
• a trigger pivotally connected to the dispenser housing, the trigger being operatively connected to the pump pistons in a manner for simultaneously effecting reciprocation of the pump pistons upon operation of the trigger.

A trigger operated fluid dispenser for simultaneously dispensing first and second liquids separately stored in respective first and second fluid compartments, the dispenser comprising:

• a dispenser housing having a pair of side-by-side pump cylinders in fluid communication with the fluid compartments, and a pair of separate discharge passageways for passage of the liquids from the pump cylinders to a discharge passage, the discharge passageways having exit openings which open into the discharge passage, the dispenser housing defining a valve seat adjacent the exit openings;
• a nozzle connected to the dispenser housing, the nozzle including a discharge orifice, the discharge passage being defined at least in part by the nozzle;
• a fluid spinner assembly within said discharge passage, the fluid spinner assembly including a fluid spinner and a one-way-valve, the one-way-valve being configured to releasably seat against the valve seat and over the exit openings of the discharge passageways for permitting liquid flow from the exit openings to the discharge passage while checking liquid flow from the discharge passage to the exit openings;
• a pair of side-by-side pump pistons reciprocable in the pump cylinders, the pump pistons and pump cylinders defining variable volume pump chambers, the pump pistons and dispenser housing being configured so that reciprocation of the pump pistons within the pump cylinders draws the liquids from the fluid compartments into the pump chambers, forces the drawn liquids through the discharge passageways to the discharge passage where the first and second liquids are united before exiting through the discharge orifice as a spray;
• and
• a trigger pivotally connected to the dispenser housing, the trigger being operatively connected to the pump pistons in a manner for simultaneously effecting reciprocation of the pump pistons upon operation of the trigger.