Dispenser for either continuous or intermittent discharge

An economical, easy to use, duration and/or continuous action dispensing device, comprising;

• a manifold member having fastening means thereon for securing the manifold member to a container;
• piston and cylinder means carried by the manifold member;
• pivotable trigger means connected with the piston to operate the piston to alternately draw material from a container and then pressurize it;
• an elastomeric bladder carried by the manifold member for receiving pressurized material from the piston and cylinder means and accumulating, under pressure, a quantity of the material for subsequent, prolonged discharge;
• a stationary discharge nozzle carried by the manifold member;
• and discharge valve means connected with the elastomeric bladder, and having a first position for precluding flow from the elastomeric bladder, and a second position enabling flow from the elastomeric bladder to the nozzle for discharge as desired, said discharge valve means being normally biased to its first, closed position and movable to its second, open position to enable flow, the material drawn from the container and pressurized by the piston and cylinder means being accumulated in the elastomeric bladder when the discharge valve means is in its first position, whereby a prolonged, pressurized discharge of material is obtained when the discharge valve means is moved to its second position;
• the discharge valve means comprising an elongate discharge passage communicating between the elastomeric bladder and the nozzle, and an elongate tubular valve member reciprocable in the passage, said valve member having an open end for receiving material from the elastomeric bladder, and a plurality of radial ports arranged to be placed in communication with the nozzle when the discharge valve means is in its second position, and said valve member having an enlarged actuator head engageable with the finger of the user to reciprocate the valve member to the second position;
• said dispensing device being attachable to existing, conventional containers.

An economical, easy to use, duration and/or continuous action dispensing device, comprising:

• a manifold member having fastening means thereon for securing the manifold member to a container;
• piston and cylinder means carried by the manifold member;
• pivotable trigger means connected with the piston to operate the piston to alternately draw material from a container and then pressurize it;
• and elastomeric bladder carried by the manifold member for receiving pressurized material from the piston and cylinder means and accumulating, under pressure, a quantity of the material for subsequent, prolonged discharge;
• a discharge nozzle carried by the manifold member;
• and discharge valve means connected with the expansible bladder and having a first position for precluding flow from the expansible bladder, and a second position enabling flow from the expansible bladder to the nozzle for discharge as desired, said discharge valve means being normally biased to its first, closed position and movable to its second, open position to enable flow, the material drawn from the container and pressurized by the piston and cylinder means being accumulated in the elastomeric bladder when the discharge valve means is in its first position, whereby a prolonged, pressurized discharge of material is obtained when the discharge valve means is moved to its second position, the discharge valve means comprising an elongate actuator rod reciprocable in a discharge passage extending between the elastomeric bladder and nozzle, said elastomeric bladder having an integrally formed outlet valve means in a position to be engaged by the actuator rod and moved to an open position when the rod is moved inwardly;
• said dispensing device being attachable to existing, conventional containers.

An economical, easy to use, duration and/or continuous action dispensing device, comprising:

• a manifold member having fastening means thereon for securing the manifold member to a container;
• first expansible chamber means carried by the manifold member and including first actuator means operable to alternately draw material from a container and then pressurize it;
• second expansible chamber means carried by the manifold member for receiving pressurized material from the first expansible chamber means and accumulating, under pressure, a quantity of the material for subsequent, prolonged discharge;
• and discharge valve means connected with the second expansible chamber means, and having a first position for precluding flow from the second expansible chamber means, and a second position enabling flow from the second expansible chamber means to a nozzle for discharge as desired, said manifold member having one end defining a valving chamber therein, and first and second tubular members projecting therefrom in parallel relationship with one another and each being in communication at one of their ends with the valving chamber, a piston reciprocable in said first tubular member and defining with said first tubular member the first expansible chamber means, said second tubular member defining a discharge passage;
• a third tubular member extending parallel to the first and second tubular members and communicating at one of its ends with the discharge passage;
• said second expansible chamber means comprising an elastomeric bladder carried by said one end of the manifold member and having an integral, cylindrical valving wall projecting from one end thereof into the valving chamber;
• an inlet port opening into the valving chamber through one side thereof, said valving wall normally closing said inlet port and being movable to expose the inlet port upon operation of said piston to enlarge said first expansible chamber means, whereby flow is enabled through the inlet port into the valving chamber and first expansible chamber means, said valving wall being moved into closing relationship relative to said inlet port when the piston is moved to decrease the size of the first expansible chamber means;
• said bladder having a hollow interior in communication with said valving chamber, whereby material entering said valving chamber also enters said bladder area;
• a discharge nozzle carried on the other end of the third tulular member;
• and said discharge valve means being disposed in said discharge passage to control flow from the valving chamber to the nozzle.

An economical, easy to use, duration and/or continuous action dispensing device, comprising:

• a manifold member having fastening means thereon for securing the manifold member to a container;
• first expansible chamber means carried by the manifold member and including first actuator means operable to alternately draw material from a container and then pressurize it;
• second expansible chamber means carried by the manifold member for receiving pressurized material from the first expansible chamber means and accumulating, under pressure, a quantity of the material for subsequent, prolonged discharge;
• discharge valve means connected with the second expansible chamber means, and having a first position for precluding flow from the second expansible chamber means, and a second position enabling flow from the second expansible chamber means to a nozzle for discharge as desired;
• and vent means associated with the fastening means to vent the container and prevent collapse thereof as product is removed therefrom, said vent means comprising an annular wall having a central opening therethrough, a stem extending through said central opening and having channel means in an outer surface thereof, said annular wall normally being positioned with the central opening spaced from the channel means and engaged with the stem and closed thereby, and being movable to locate said central opening in registry with said channel means to vent the container when product is removed from the container;
• said dispensing device being attachable to existing;
• conventional containers.