Method and apparatus for dispensing product

Information

  • Patent Grant
  • 6568565
  • Patent Number
    6,568,565
  • Date Filed
    Wednesday, April 4, 2001
    23 years ago
  • Date Issued
    Tuesday, May 27, 2003
    21 years ago
Abstract
A method and apparatus for dispensing a product includes a support housing, a disposable or non-disposable pump, a disposable product package connectable to the pump, a pump driver connectable to the pump, and a dispensing station on the support housing. The dispensing station supports the pump driver and is adapted to receive the pump and disposable product package. The disposable product package and the pump driver connect to the pump. The pump driver operates the pump to draw product from the disposable product package. When the disposable product package is empty, the disposable product package and the pump if disposable are removed from the dispensing station and disposed.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a method and apparatus for dispensing and, more particularly, but not by way of limitation, to a method and apparatus for dispensing food products and food product concentrates, such as pizza sauce, soft ice cream, mustard, ketchup, mayonnaise, soup, salad dressing, juice concentrates, and the like.




2. Description of the Related Art




The viscosity of food products varies widely and ranges from relatively hard (e.g., soft ice creams) to semi-liquids (e.g., pizza sauce, ketchup, and mustard) to liquids (e.g., soups). Problems associated with viscous products or soups that contain solids arise because an employee or a customer typically manually dispenses such products. These problems relate to consistency, quality, cost, cleanliness, and the like.




For example, ketchup and mustard usually have separate dispensers that each consist of a container having a pump. Although employees do not directly dispense ketchup and mustard, an employee must fill the dispensers when they are empty. This results in direct employee contact with both the dispensers and the ketchup and mustard. Furthermore, if the dispensers are not routinely cleaned or are cleaned improperly, an unsanitary condition situation arises.




As another example, some food products, such as pizza sauce or soup, come in concentrate packages. An employee opens the concentrate package and empties the package into a large, typically open container. The employee then adds water and mixes the concentrate and water to form the final product. Then, as needed for final preparation or consumption, an employee or customer ladles the final product from the large open container. Thus, the final product can remain uncovered for long periods and employees or customers often contact the final product, both of which are unsanitary.




Manual dispensing of food products occurs because heretofore the cost for dispensers suitable to dispense such products has been prohibitive. Accordingly, a product dispenser and a method of dispensing food product are needed that permit self-contained dispensing of food products and food product concentrates, such as pizza sauce, soft ice cream, mustard, ketchup, mayonnaise, soup, salad dressing, and the like.




SUMMARY OF THE INVENTION




In accordance with the present invention, a product dispenser includes a support housing, a disposable or non-disposable pump, a disposable or non-disposable product package connectable to the pump, a pump driver connectable to the pump, and a dispensing station.




The dispensing station may also include a platform secured to a support housing, a base residing on the platform over the pump driver and defining a pump slot that receives the pump therein, and a container supported by the base that receives the disposable product package therein. The disposable product package and the pump driver connect to the pump. The pump driver operates the pump to draw product from the disposable product package. When the disposable pro duct package is empty, the disposable product package and the pump if disposable are removed from the dispensing station and disposed.




The disposable product package may include a bag and a fitting secured to the bag wherein the fitting snap fits into an inlet of the pump adapted to receive the fitting therein. A mixing chamber is connectable to an outlet of the pump, whereby the mixing chamber is disposable with the pump if disposable when the disposable product package is empty. The mixing chamber includes a diluent inlet that introduces diluent into the mixing chamber for combination with product delivered into the mixing chamber by the disposable pump. A product delivery device may be coupled to an outlet of the mixing chamber.




The pump driver may include a driving fork connectable to the pump and a driver unit coupled with the driving fork, whereby the driver unit operates the driving fork to facilitate the drawing of product by the pump from the disposable product package. The pump driver may further include a frame mountable to the dispensing station and adapted to link the driving fork with the driver unit.




The driver unit may include a motor coupled with the driving fork via a drive shaft engageable with the driving fork and a gearbox coupled with the drive shaft and with the motor for transferring the driving force of the motor to the drive shaft. The driver unit may further include a clutch unit mountable onto the drive shaft for interfacing the drive shaft with driving fork. The driving fork includes an interface that engages a piston of the pump to couple the driving fork with the pump and a drive slot that engages the drive shaft of the driver unit to couple the driving fork with the driver unit.




A method of dispensing product includes inserting a disposable pump into a dispensing station. A disposable product package is inserted into a dispensing station. The disposable product package is connected to the disposable pump. A pump driver is connected to the disposable pump. The disposable pump is operated via the pump driver to draw product from the disposable product package. The disposable product package and the disposable pump are removed from the dispensing station and disposed when the disposable product package is empty.




Another method of dispensing a product measures diluent flow and controls a disposable pump, based on the measured flow, to pump the product. The diluent and the product are mixed and dispensed. The method further includes shipping the product and the pump, coupling the product to the pump at a location where dispensing occurs, and installing the coupled product and pump in a dispenser. Conversely, the product and pump may be coupled during installation in the dispenser. Alternatively, the method further includes coupling the product and the pump, shipping the coupled product and pump to a location where dispensing occurs, and installing the coupled product and pump in a dispenser.




Still another method of dispensing a product includes shipping a disposable pump, shipping the product, coupling the product to the pump at a location where dispensing occurs, pumping the product in the pump, and dispensing the product. The method further includes installing the coupled product and pump in a dispenser or, conversely, coupling the product and pump during installation in the dispenser. Alternatively, the product and pump may be shipped together. The method still further includes mixing the product with a diluent and dispensing the mixture of the product and the diluent.




A further method of dispensing product includes coupling the product to a disposable pump, shipping the coupled product and pump to a location where dispensing occurs, installing the coupled product and pump in a dispenser, pumping the product, and dispensing the product.




It is therefore an object of the present invention to provide a product dispenser that receives a disposable product package and a disposable pump therein.




It is another object of the present invention to provide a product dispenser that includes a pump therein and receives a disposable product package therein.




It is still another object of the present invention to provide a product dispenser that combines a product concentrate with a diluent during dispensing to form and end product thereof.




It is a further object of the present invention to provide a product dispenser suitable for connection with an end product delivery device.




Still other objects, features, and advantages of the present invention will become evident to those of ordinary skill in the art in light of the following. Also, it should be understood that the scope of this invention is intended to be broad, and any combination of any subset of the features, elements, or steps described herein is part of the intended scope of the invention.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view including cut-away portions illustrating a product dispenser according to the preferred embodiment.





FIG. 2

is a side view illustrating a product package according to the preferred embodiment.





FIG. 3

is an exploded perspective view illustrating a pump driver according to the preferred embodiment.





FIG. 4

illustrates a driving fork of the pump driver.

FIG. 4



a


is a perspective view illustrating the driving fork.

FIGS. 4



b


and


4




c


are cross-sectional views illustrating the driving fork.





FIG. 5

is an exploded perspective view illustrating the driving fork connectedly engaged with a pump plunger of a pump.





FIG. 6

illustrates a clutch unit of the pump driver.

FIG. 6



a


is a perspective view of the clutch unit.

FIGS. 6



b-d


are cross-sectional views of the clutch unit.





FIG. 7

illustrates methods of dispensing product.

FIG. 7



a


is a flowchart of a dispense controlled according to a diluent flow rate.

FIGS. 7



b-c


are flowcharts of a dispense preceded by the delivery and installation of a pump and a product package.





FIG. 8

is a perspective view illustrating a product dispenser according to an alternative embodiment.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. It is further to be understood that the figures are not necessarily to scale, and some features may be exaggerated to show details of particular components or steps.




As illustrated in

FIG. 1

, a product dispenser


300


includes a support housing


301


and a cover


302


mounted removably atop the support housing


301


. The support housing


301


supports and houses the components of the product dispenser


300


. Similarly, the cover


302


surrounds and thus protects the components of the product dispenser


300


.




The support housing


301


includes at least one dispensing station


303


secured to the support housing


301


at an upper portion thereof and a pump driver


100


supported by the dispensing station


303


. The dispensing station


303


includes a platform


304


, a base


305


residing on the platform


303


over the pump driver


100


, and a container


306


supported by the base


305


. This preferred embodiment discloses the product dispenser


300


including four dispensing stations


303


and four pump drivers


100


to illustrate the dispensing of multiple products, such as ketchup, mustard, mayonnaise, salad dressing, and the like. Nevertheless, only one dispensing station


303


and one pump driver


100


may be used.




As illustrated in

FIGS. 1-6

, the pump driver


100


drives a pump


220


to facilitate the dispensing of product from a product package


308


. The pump


220


includes a piston


225


as in

FIG. 5

engageable with the pump driver


100


to effect the drawing of product from the product package


308


. The dispensing station


303


provides a housing that holds the pump


220


and further permits the attachment of the pump


220


to the pump driver


100


via the piston


225


. Particularly, the base


305


includes a pump slot


309


for receiving the pump


220


therein. The pump slot


309


includes tabs


310


that engage flanges


311


on the pump


220


to aid in holding the pump therein.




The pump


220


includes an inlet


221


suitable for connection with the product package


308


and an outlet


222


suitable for connection with a mixing chamber


223


. The mixing chamber


223


in turn connects to a dispensing outlet


224


via a tube


227


. Although this preferred embodiment discloses a dispensing outlet


224


, the mixing chamber


223


may connect to any other suitable end product delivery device, such as a pizza sauce spreader and the like. The mixing chamber


223


includes a diluent inlet


228


connected to a diluent source that delivers a diluent (e.g., water) into the mixing chamber


223


. In this preferred embodiment, the mixing chamber


223


includes a mixing device suitable to facilitate the combining of the product and diluent. Consequently, the pump


220


delivers product, typically in concentrate form, into the mixing chamber


223


, and the diluent source delivers diluent into the mixing chamber


223


via the diluent inlet


228


, resulting in the product and diluent combining in the mixing chamber to form an end product dispensed from the dispensing outlet


224


. Although a mixing chamber


223


has been disclosed, those of ordinary skill in the art will recognize that the pump


220


may directly connect to the dispensing outlet


224


when the product does not require a diluent or when mixing before dispensing is not required.




To ensure desired mixed concentrations of product and diluent, a suitable flow control device may be provided between the diluent source and the diluent inlet


228


, and the pump driver


100


could be controlled to operate the pump


220


at a preset rate. Alternatively, a suitable metering device could be provided between the diluent source and the diluent inlet


228


. The metering device provides metered amounts of diluent and further measures diluent flow to produce a signal thereof, which is used to control the pump driver


100


and drive the pump


220


such that the pump


220


delivers a desired amount of product for combination with diluent. An example of a suitable metering device is disclosed in U.S. Pat. No. 6,435,375.




The pump


220


in this preferred embodiment is a reciprocating piston type pump commonly associated with product dispensing. Although this preferred embodiment discloses a reciprocating piston type pump, any suitable alternative, such as progressive cavity pump, may be used.




The product package


308


includes a bag


312


coupled with a fitting


313


whereby the fitting inserts into the inlet


221


of the pump


220


. The fitting


313


includes an inlet


314


, a base


315


, and an outlet


316


. The base


315


engages the bag


312


and is permanently secured thereto using any suitable means such as a heat or sonic weld or suitable adhesive. The outlet


316


snap fits into the inlet


221


of the pump


220


to facilitate the delivery of product thereto. In this preferred embodiment, the bag


312


is constructed from flexible plastic material; however, other materials, such as, without limitation, plastic (e.g. PET) may also be used. Also, the pump may be adapted to receive product from any type of source, and the snap fit described herein is exemplary only.




The dispensing station


303


provides a housing that holds the product package


308


and further permits the attachment of the product package


308


to the pump


220


. Particularly, the container


306


includes an opening


317


that receives the product package


308


therethrough to permit placement of the bag


312


within the container


306


such that the fitting


313


resides over the pump slot


309


of the base


305


. Consequently, with the insertion of a pump


220


into the pump slot


309


, the outlet


316


snap fits into the inlet


221


of the pump


220


to facilitate the delivery of product thereto. The fitting


313


is secured to the bag


312


in a position permitting easy location of the fitting


313


over the pump slot


309


upon placement of the product package


308


into the container


306


. Although this preferred embodiment discloses a separate pump


220


and product package


308


, the dispensing station


303


may be adapted to receive an integral pump


220


and a product package


308


shipped together as a single unit.




The pump driver


100


, particularly illustrated in FIGS.


1


and


3


-


6


, includes a driving fork


110


connectedly engaged with the pump


220


for providing a requisite motion to drive the pump


220


. Moreover, the pump driver


100


includes a driver unit


150


cooperatively linked with the driving fork


110


, whereby the driver unit


150


controls the rate by which the driving fork


110


moves and, thus, the rate by which product is pumped from the product package


308


. The driver unit


150


includes a standard motor


157


and a drive shaft


154


coupled to the motor


157


via a gearbox


152


. The gearbox


152


transfers the driving force of the motor


157


to the drive shaft


154


as well as permits variable control in the direction and speed of the drive shaft


154


. The gearbox


152


mounts onto the platform


304


of the dispensing station


303


to locate the drive shaft under the base


305


, while the motor


157


mounts underneath the platform


304


. Although this preferred embodiment discloses the driver unit


150


as including a gearbox


152


and a drive shaft


154


, the motor


157


could connect directly to the driving fork


110


.




In this preferred embodiment, the driver unit


150


includes a clutch unit


159


that facilitates attachment of the drive shaft


154


to the driving fork


110


. Nevertheless, the clutch unit


159


is not necessary as the requisite attachment mechanism could be incorporated directly onto the drive shaft


154


.




The preferred pump driver


100


further includes a frame


130


mountable to platform


304


of the dispensing station


303


for linking the driving fork


110


and the driver unit


150


in cooperative engagement. The frame


130


includes alignment bearings


132


engagedly coupled with the drive shaft


154


to ensure desirable operation of the driver unit


150


. The frame


130


further includes a locking subassembly


135


for securing the driving fork


110


with the frame


130


.




The driving fork


110


as illustrated in

FIG. 4



c


includes a body


115


, preferably constructed as a single piece. Moreover, the driving fork


110


is preferably divided into two portions, a head portion


111




a


for engagement with the pump


220


and a lever portion


111




b


extending outwardly from the head portion


111




a


. The lever portion


111




b


includes a lever arm


115




a


preferably spanning the length of the lever portion


111




b


for imparting motion to the head portion


111




a


. The lever portion


111




b


may include fork coupling elements


118


opposite the head portion


111




a


and extending outwardly from the lever arm


1115




a


. As illustrated in

FIG. 3

, the fork coupling elements


118


are hingedly engaged with the frame


135


via corresponding locking notches


135




a


provided by the locking subassembly


135


.




The head portion


111




a


includes an interface


112


for contactedly engaging the piston


225


to thus drive the pump


220


. Specifically, in this preferred embodiment, the interface


112


defines a receiving slot


113


for engagement with corresponding piston ears


226


extending outwardly from the piston


225


. As illustrated in

FIG. 5

, the piston ears


226


slideably engage the receiving slot


113


so that the piston


225


is coupled with the pump interface


112


.




The head portion


111




a


includes a drive slot


117


contactedly engaged by the clutch unit


159


. In operation, the clutch unit


159


traverses the drive slot


117


, thereby furnishing a desired motion to the driving fork


110


and, ultimately, to drive the pump


220


. The drive slot


117


in this preferred embodiment is substantially elliptical in shape to facilitate an up and down motion of the driving fork


110


and the piston


225


, as indicated in

FIG. 3

by directional arrow


119


. Nevertheless, other suitable shapes for the drive slot


117


may be used that are suitable to supply a correspondingly desired motion thereof.




Furthermore, as illustrated in

FIG. 4



b


, a releasable member


116


forms the drive slot


117


and secures to the body


115


to the body


115


using any suitable means. Accordingly, the releasable member


116


facilitates ease of exchange with other releasable members having clutch unit slots of different configurations that supply correspondingly different motions to the driving fork


110


and the piston pump driver


220


. It should be added that other embodiments contemplate the drive slot


117


as defined by the body


115


.




As indicated by directional arrow


155


in

FIG. 3

, the driver unit


150


of the pump driver


100


preferably supplies a rotary motion so that the driving fork


110


may assume an up and down motion to drive the pump


220


. However other suitable motive directions of the driver unit


150


may be used for driving the pump


220


.




The clutch unit


159


interfaces the drive shaft


154


and the driving fork


110


. In particular,

FIG. 1

illustrates the clutch unit


159


disposed on the drive shaft


154


for converting the motion of the drive shaft


154


to the requisite motion for operating the driving fork


110


and the pump


220


. Thus, as the clutch unit


159


rotates cooperatively with the drive shaft


154


, it preferably slides about the drive slot


117


, thereby establishing a desired up and down motion for the driving fork


110


and, ultimately, for the piston


225


of the pump


220


.




As illustrated in

FIG. 6

, the clutch unit


159


in this preferred embodiment is a one-way clutch. In

FIG. 6



a


, the clutch unit


159


includes a cam


161


, a spring


162


extending outwardly from the cam


161


, and a knob


160


extending outwardly from the cam


161


opposite the spring


162


, whereby the cam


161


, the spring


162


, and the knob


160


are preferably formed as one piece. The clutch unit


159


further includes a clutch unit bore


165


extending from the spring


162


through the cam


161


for securedly receiving the drive shaft


154


.




In operation, the motor


157


via the gearbox


152


propels the drive shaft


154


in the direction indicated by directional arrow


155


in FIG.


3


. The drive shaft


154


in turn propels the cam


161


and the spring


162


. The cam


161


and the spring


162


rotate cooperatively with the drive shaft


154


, thereby allowing the knob


160


to slide about the drive slot


117


so as to ultimately drive the pump


220


. In effect, the knob


160


acts as a lever and is positioned on the cam


161


so that the shape of the cam


161


provides a sufficient lever arm for the knob


160


, as shown in

FIG. 6



b


. Accordingly, the pump driver


100


drives the pump


220


in the following manner. The drive shaft


154


turns the clutch unit


159


disposed thereon so that the knob


160


of the clutch unit


159


engages the drive slot


117


, thereby allowing for the interface


112


of the driving fork


110


to drive the pump


220


.




The driver unit


150


includes the clutch unit


159


to facilitate easier engagement of the drive shaft


154


with the drive slot


117


. Specifically, to link the drive shaft


154


with the drive slot


117


via the clutch unit


159


, the motor


157


may be controlled to implement a reverse rotational motion, as indicated for example in

FIG. 3

by directional arrow


156


. When the drive shaft


154


rotates in reverse, the clutch unit


159


no longer rotates cooperatively with the drive shaft


154


but instead floats substantially freely about the turning drive shaft


154


. While the clutch unit


159


floats substantially freely about the drive shaft


154


, the knob


160


thus slides against the driver slot


117


with less force than required for drive shaft


154


to operatively drive the pump


220


. By sliding with less force, the knob


160


moves the driving fork


110


at a rate sufficient for readily coupling with the piston


225


of the pump


220


. In particular, it is relatively easy to engage the piston ears


226


of the pump


220


with the receiving slot


113


of the driving fork


110


due to the substantially free floating of the clutch unit


159


. Once the driving fork


110


is connectedly engaged with the piston


225


of the pump


220


, the motor


157


switches from reverse rotational motion to a rotational motion suitable for operating the pump


220


.




To facilitate the dispensing of product as illustrated in

FIG. 7



a-c


, a product package


308


and a pump


220


are shipped either together or separately to a location containing a product dispenser


300


. In some instances, the pump product package


308


and the pump


220


may be coupled together prior to shipping. The cover


302


is removed from the support housing


301


, the pump


220


is inserted into the pump slot


309


, and the pump


220


is connected to the pump driver


100


. The mixing chamber


223


, which is also typically disposable, is placed in the product dispenser


300


and connected to the dispensing outlet


224


via the tube


227


. It should be understood that the mixing chamber


223


may be integral with the pump


220


or connected prior to shipping or installation. Further, the diluent inlet


228


is connected to a diluent source using any suitable means, such as tubing. The product package


308


is placed within the container


306


such that the fitting


313


resides over the pump slot


309


, and the outlet


316


is snap fit into the inlet


221


of the pump


220


to facilitate the delivery of product thereto. Alternatively, the pump


220


and the product package


308


are loaded into the dispensing station


303


as an integral unit when the pump


220


and the product package


308


are coupled together either prior to shipping or prior to installation. The cover


302


is then returned onto the support housing


301


to place the product dispenser


300


in condition to dispense product.




Product dispenser


300


delivers product responsive to the activation of a user interface device, typically a switch, that connects the motor


157


to a power source, typically a regulated power supply receiving input power from a standard 115V/120V line or 230V/240V line. The user interface device may further facilitate activation of a flow control device associated with diluent delivery, typically a valve, flow controller, or suitable metering device as previously described. The activation of the motor


157


facilitates the actuation of the pump


220


via the pump driver


100


as previously described. The pump


220


draws product from the product package


308


and delivers the product from the dispensing outlet


224


. A dispense associated with a metering device involves the metering device measuring the flow of diluent and outputting a signal thereof. A controller, such as a microprocessor of other known control system, drives the pump driver


100


and thus the pump


220


at a speed determined by the output signal such that the pump


220


delivers a desired amount of product for mixture with diluent. Upon the deactivation of the user interface device, the product dispenser


300


ceases the delivery of product due to the corresponding deactivation of the motor


157


and flow control device.




After the emptying of a product package


308


, the cover


302


is again removed from the support housing


301


, and the outlet


316


of the fitting


313


is disconnected from the inlet


221


of the pump


220


. The product package


308


is then removed from within the container


306


. The mixing chamber


223


is disconnected from the dispensing outlet


224


, and the diluent inlet


228


is disconnected from the diluent source. The mixing chamber


223


is then removed from the product dispenser


300


. Conversely, the mixing chamber could be washable in place and thus remain within the product dispenser


300


. The pump


220


is disconnected from the pump driver


100


and removed from the pump slot


309


. Alternatively, the pump


220


and the product package


308


are removed together as an integral unit when the pump


220


and the product package


308


are coupled together either prior to shipping or prior to installation. The product dispenser is thus ready for reloading as described above. The removed product package


308


, pump


220


, and mixing chamber


223


are disposed, which makes the product dispenser


300


sanitary, as the product is not exposed to the environment.




Accordingly, when a product package


308


containing concentrated product is employed, the product dispenser


300


provides a significant cost saving in terms of product shipping and storage costs. Moreover, significant quality and cost advantages are achieved because the food product is consistently dispensed, as opposed to the inconsistencies in ratio and quantity that result from manual dispensing.




Although this preferred embodiment contemplates a disposable pump, those of ordinary skill in the art will recognize that the pump


220


could be a non-disposable pump mounted within the pump slot


309


of the dispensing station


303


and utilized with multiple disposable product packages


308


. In this instance, the pump


220


could be washable in place and thus remain within the dispensing station


303


.




As illustrated in

FIG. 8

, an alternative embodiment of a product dispenser


400


provides a configuration that uses a cartridge


200


, which may be a permanent or disposable container, to supply product to the product dispenser


400


. The product dispenser


400


is similar to the product dispenser


300


and like parts have been labeled with like numerals, except the base


401


of the dispensing station


402


includes rails


385


defining a slot


390


that receives the cartridge


200


therein. Similar to the product package


308


, the cartridge


200


includes a fitting suitable for insertion into the inlet


221


of the pump


220


. Consequently, after the loading of the product dispenser


400


with the cartridge


200


, the product dispenser


400


operates identically to the product dispenser


300


in the dispensing of product.




Although the present invention has been described in terms of the foregoing embodiment, such description has been for exemplary purposes only and, as will be apparent to those of ordinary skill in the art, many alternatives, equivalents, and variations of varying degrees will fall within the scope of the present invention. That scope, accordingly, is not to be limited in any respect by the foregoing description; rather, it is defined only by the claims that follow.



Claims
  • 1. A product dispenser, comprising:a support housing; a disposable pump; a disposable product package connectable to the disposable pump; a pump driver connectable to the disposable pump, the pump driver, comprising: a driving fork, and a driver unit comprising a drive shaft and a clutch unit mountable onto the drive shaft for interfacing the drive shaft with the driving fork; and a dispensing station on the support housing, the dispensing station supporting the pump driver and adapted to receive the disposable pump and the disposable product package wherein the disposable product package and the driving fork of the pump driver connect to the disposable pump and the driver unit of the pump driver operates the driving fork to facilitate the drawing of product from the disposable product package by the disposable pump, whereby the disposable product package and the disposable pump are removed from the dispensing station and disposed when the disposable product package is empty.
  • 2. The product dispenser according to claim 1, wherein the dispensing station, comprises:a platform secured to the support housing; a base residing on the platform over the pump driver, the base defining a pump slot that receives the disposable pump therein; and a container supported by the base, the container receiving the disposable product package therein.
  • 3. The product dispenser according to claim 1, wherein the disposable product package, comprises:a bag; and a fitting secured to the bag wherein the fitting snap fits into the disposable pump.
  • 4. The product dispenser according to claim 3, wherein the disposable pump includes an inlet adapted to receive the fitting therein.
  • 5. The product dispenser according to claim 1, further comprising a mixing chamber connectable to an outlet of the disposable pump, whereby the mixing chamber is disposable with the disposable pump when the disposable product package is empty.
  • 6. The product dispenser according to claim 5, wherein the mixing chamber includes a diluent inlet that introduces diluent into the mixing chamber for combination with product delivered into the mixing chamber by the disposable pump.
  • 7. The product dispenser according to claim 5, further comprising a product delivery device coupled to an outlet of the mixing chamber.
  • 8. The product dispenser according to claim 1, further comprising a dispensing outlet coupled to an outlet of the disposable pump.
  • 9. The product dispenser according to claim 1, further comprising a cover mounted over the support housing.
  • 10. The product dispenser according to claim 1, wherein the driving fork includes an interface that engages a piston of the disposable pump to couple the driving fork with the disposable pump.
  • 11. The product dispenser according to claim 1, wherein the pump driver further comprises a frame mountable to the dispensing station and adapted to link the driving fork with the driver unit.
  • 12. The product dispenser according to claim 1, wherein the driver unit further comprises a motor.
  • 13. The product dispenser according to claim 12, wherein the driver unit further comprises a gearbox coupled with the drive shaft and with the motor for transferring the driving force of the motor to the drive shaft.14.The product dispenser according to claim 13, wherein the driving fork includes a drive slot that engages the drive shaft of the driver unit to couple the driving fork with the driver unit.
US Referenced Citations (6)
Number Name Date Kind
5058780 Plester et al. Oct 1991 A
5494193 Kirschner et al. Feb 1996 A
5797519 Schroeder et al. Aug 1998 A
5803317 Wheeler Sep 1998 A
5842603 Schroeder et al. Dec 1998 A
5992685 Credle, Jr. Nov 1999 A