MODULAR BIB PUMP
A modular pump features a gas-control-and-drive-unit (GCDU), a cartridge-style-pumping-module (CSPU) and a retainer clip (RC). The GCDU includes a GCDU-housing to receive/provide gas to a gas-passageway causing a GCDU-force in one direction; an actuator-rod-and-slide-valve-arrangement (AR/SVA) to respond to a CSPM-force and exhaust the gas from the GCDU-housing causing a GCDU-exhaustion-force in an opposite direction; and a GCDU-coupling-member. The CSPM includes a CSPM-housing to receive a fluid to be pumped, and a piston-and-dual-diaphragm-arrangement (PDDA) to respond to the GCDU-force, provide the CSPM-force and pump the fluid from the CSPM, and to respond to the GCDU-exhaustion-force and pump the fluid from the CSPM. The CSPM-housing includes a CSPM coupling member to detachably couple to the GCDU-coupling-member. The RC detachably couples a piston of the PDDA and an actuator rod of the AR/SVA, so the CSPM attaches/detaches from the GCDU using a three-step process for field replacement using the RC.
This application claims benefit to provisional patent application serial nos. 62/315,265 (911-005.090-1//F-FLJ-X0026), filed 30 Mar. 2016, which is incorporated by reference in its entirety.
BACKGROUND OF THE INVENTION 1. Field of InventionThe present invention relates to a pump; and more particularly relates to a bag-in-the-box (BIB) pump.
2. Description of Related ArtThe assignee of the instant application designs, manufactures and distributes BIB pumps for the post mix dispensing market, e.g., like the disposable pump in
There is a need in the industry for a desired design change so the pump may be easily remanufactureable/replaceable in the field, e.g., by restaurant personnel as opposed to trained technicians. In addition to flavor changes, the need for store operator replacement of pumps due to breakdowns is a major driver.
SUMMARY OF THE INVENTIONIn summary, and by way of example, the present invention may consistent of a gas operated modular BIB pump with a cartridge-style replaceable pumping module mated to a separate gas control drive unit, where the separate gas control drive unit is semi-permanent and the pumping module is designed to be field replaceable by untrained technicians.
The general solution is to re-situate the pistons involved in pumping the fluid in a way that makes it easier to modularize the pumping chamber from the gas control unit. Using some creative interfacing design features, the modular BIB pump according to the present invention should be easier to remove, e.g. without the need for tools.
Examples of Particular EmbodimentsAccording to some embodiments, and by way of example, the present invention may include, or take the form of, a new and unique modular pump featuring a combination of a gas control and drive unit, a cartridge style pumping module and a retainer clip.
The gas control and drive unit may include a gas control and drive unit housing configured to receive gas from a gas inlet and provide the gas to a gas passageway so as to cause a gas control and drive unit force, as well as an actuator rod and slide valve arrangement configured to respond to a cartridge style pumping module force in an axial direction and exhaust the gas from a gas exhaust outlet of the gas control and drive unit housing so as to cause a gas control and drive unit exhaustion force in an opposite axial direction, and also having a gas control and drive unit coupling member.
The cartridge style pumping module may include a cartridge style pump module housing configured to receive a fluid to be pumped from a fluid inlet, having a piston and dual diaphragm arrangement configured to respond to the gas control and drive unit force, provide the cartridge style pumping module force in the axial direction and pump the fluid from a fluid discharge outlet of the cartridge style pumping module, and also configured to respond to the gas control and drive unit exhaustion force in the opposite axial direction and pump the fluid from the fluid discharge outlet of the cartridge style pumping module. The cartridge style pumping module housing may also include a cartridge style pumping module coupling member configured to detachably couple to the gas control and drive unit coupling member.
The retainer clip may be configured to detachably couple together a piston shaft of the piston and dual diaphragm arrangement and an actuator rod of the actuator rod and slide valve arrangement, so that the cartridge style pumping module can be attached and detached from the gas control and drive unit using a three step process so as to be field replaceable using a retainer clip attaching/detaching tool.
By way of example, the modular pump may include one or more of the following features:
The cartridge style pumping module may be attached to the gas control and drive unit using the three step process, as follows:
-
- partially coupling together the cartridge style pumping module coupling member and the gas control and drive unit coupling member so as to leave a space between the cartridge style pumping module and the gas control and drive unit for accessing the retainer clip;
- attaching together the piston of the piston and dual diaphragm arrangement and the actuator rod of the actuator rod and slide valve arrangement with the retainer clip using the retainer clip attaching/detaching tool to push the retainer clip into a locking position; and fully coupling together the cartridge style pumping module coupling member and the gas control and drive unit coupling member in a locking engagement.
The cartridge style pumping module may be detached from the gas control and drive unit using the three step process, as follows:
-
- partially decoupling and unlocking the cartridge style pumping module coupling member and the gas control and drive unit coupling member from a locking engagement, so as to leave a space between the cartridge style pumping module and the gas control and drive unit for accessing the retainer clip;
- detaching the piston of the piston and dual diaphragm arrangement and the actuator rod of the actuator rod and slide valve arrangement by removing the retainer clip using the retainer clip attaching/detaching tool to pushing the retainer clip from a locking position; and
- fully decoupling together the cartridge style pumping module coupling member and the gas control and drive unit coupling member.
The gas control and drive unit housing and the cartridge style pumping module housing may be configured along a common longitudinal axis; and the cartridge style pumping module coupling member may include a pair of tabs configured on opposite sides of the cartridge style pumping module housing and extending in parallel with the common longitudinal axis.
The gas control and drive unit coupling member may include a pair of channels configured on opposite sides of the gas control and drive unit housing and configured with openings to detachably couple to the pair of tabs.
The pair of tabs may be configured to deflect towards or away from the common longitudinal axis in order to couple or decouple to or from the pair of channels.
The modular pump may be a bag-in-the-box (BIB) pump for pumping syrup.
The actuator rod may include a tapered end with a slot or opening formed or configured therein; the piston shaft may include a flanged portion having a cylindrical recessed channel portion, a rim portion and an interior cavity formed within the recessed channel portion configured to receive the tapered end; and the retainer clip may include a multi-prong clip having multiple prongs. In operation, the tapered end may be configured in the slot or opening, the retainer clip may be pushed so a center prong passed into and through the slot or opening and the interior cavity of the flange portion of the piston shaft, and at least one of the multiple outer prongs may be adapted in the cylindrical recessed channel portion and engage the rim portion, so as to lock, fasten or couple the actuator rod and piston shaft together.
Solution to Problem in the ArtThe present invention overcomes the above mentioned difficulties as follows:
The present invention provides a modular BIB pump that may be easily remanufactureable/replaceable in the field, e.g., by restaurant personnel as opposed to trained technicians. In addition to flavor changes, the new modular BIB pump allows for replacement by store operator replacement of pumps due to breakdowns.
The drawing includes
Not every element or arrow in every Figure is labeled with a lead line and reference numeral/label, so as to reduce clutter in the drawing as a whole.
DETAILED DESCRIPTION OF BEST MODE OF THE INVENTION Detailed Description of the Operation of the Present InventionIn summary, and by way of example, and consistent with that shown in
The gas control and drive unit 20 may include a gas control and drive unit housing 20f configured to receive gas from a gas inlet GI and provide the gas to a gas passageway so as to cause a gas control and drive unit force Agp, as well as an actuator rod and slide valve arrangement 20c, 20e configured to respond to a cartridge style pumping module force Ap in an axial direction and exhaust the gas from a gas exhaust outlet GE of the gas control and drive unit housing 20 so as to cause a gas control and drive unit exhaustion force Agp′ in an opposite axial direction, and also having a gas control and drive unit coupling member(s) 22.
The cartridge style pumping module 30 may include a cartridge style pump module housing 30i configured to receive a fluid to be pumped from a fluid inlet SI, having a piston and dual diaphragm arrangement 30c, 20e1, 20e2 configured to respond to the gas control and drive unit exhaustion force Agp′, provide the cartridge style pumping module force Ap in the axial direction and pump the fluid from a fluid discharge outlet SD of the cartridge style pumping module 30, and also configured to respond to the gas control and drive unit exhaustion force Agp′ in the opposite axial direction and pump the fluid from the fluid discharge outlet SD of the cartridge style pumping module 30. The cartridge style pumping module housing 30i may also include a cartridge style pumping module coupling member(s) 32 configured to detachably couple to the gas control and drive unit coupling member(s) 22.
The retainer clip 40 may be configured to detachably couple together a piston 30c of the piston and dual diaphragm arrangement 30c, 20e1, 20e2 and an actuator rod 20e of the actuator rod and slide valve arrangement 20c, 20e, so that the cartridge style pumping module 30 can be attached and detached from the gas control and drive unit 20 using a three step process so as to be field replaceable, e.g., using a retainer clip attaching/detaching tool 50.
By way of example, and consistent with that shown in
The scope of the invention is intended to include, and embodiment are envisioned, using other types or kinds of techniques for coupling the actuator rod 20e and piston shaft 30c together with the spirit of the underlying invention. By way of example, the coupling features of the actuator rod 20e and piston shaft 30c may be switched, so that the piston shaft 30c is configured with a corresponding tapered end with a corresponding slot/opening formed or configured therein; and the actuator rod 20e is configured with a corresponding flanged portion having a corresponding cylindrical recessed channel portion and a corresponding rim portion and a corresponding interior cavity formed within the corresponding recessed channel portion configured to receive the corresponding tapered end of the piston shaft 30c. By way of further example, the scope of the invention is intended to include, and embodiment are envisioned, using other types or kinds of techniques for coupling the actuator rod 20e and piston shaft 30c that are either now known or later developed in the future.
The cartridge style pumping module 30 may be attached to the gas control and drive unit 20 using the three step process, as follows::
-
- partially coupling together the cartridge style pumping module coupling member(s) 32 and the gas control and drive unit coupling member(s) 22 so as to leave a space between the cartridge style pumping module 30 and the gas control and drive unit 20 for accessing the retainer clip 40;
- attaching together the piston 30c of the piston and dual diaphragm arrangement 30c, 30e1, 30e2 and the actuator rod 20e of the actuator rod and slide valve arrangement 20c, 20e with the retainer clip 40 using the retainer clip attaching/detaching tool 50 (aka herein as the “tool”) to push the retainer clip 40 into a locking position (e.g., see
FIG. 12E , as well asFIGS. 4, 5, 7B, 8, 9, 11B, and 11C ); and - fully coupling together the cartridge style pumping module coupling member 30 and the gas control and drive unit coupling member 20 in a locking engagement (e.g., see
FIGS. 12F and 11A , as well as 1, 2, 4, 5, 6, 7B, 8 and 9).
The cartridge style pumping module 30 may be detached from the gas control and drive unit 20 using the three step process, as follows::
-
- partially decoupling and unlocking the cartridge style pumping module coupling member(s) 32 and the gas control and drive unit coupling member(s) 22 from a locking engagement, so as to leave a space between the cartridge style pumping module 30 and the gas control and drive unit 20 for accessing the retainer clip 40;
- detaching the piston 30c of the piston and dual diaphragm arrangement 30c, 30e1, 30e2 and the actuator rod 20e of the actuator rod and slide valve arrangement 20c, 20e by removing the retainer clip 40 using the retainer clip attaching/detaching tool 50 to push the retainer clip 40 from the locking position; and
- fully decoupling together the cartridge style pumping module coupling member(s) 32 and the gas control and drive unit coupling member(s) 22.
The gas control and drive unit housing 20f and the cartridge style pumping module housing 30i may be configured along a common longitudinal axis; and the cartridge style pumping module coupling member 32 may include a pair of tabs 32a, 32b configured on opposite sides of the cartridge style pumping module housing 30i and extending in parallel with the common longitudinal axis.
The gas control and drive unit coupling member 22 may include a pair of channels 22a, 22b configured on opposite sides of the gas control and drive unit housing 20f and configured with channel openings to detachably couple to the pair of tabs 32a, 32b.
The pair of tabs 32a, 32b may be configured to deflect towards or away from the common longitudinal axis in order to couple or decouple to or from the pair of channels 22a, 22b.
The modular pump 10 may be used as, or take the form of, a bag-in-the-box (BIB) pump for pumping syrup.
FIG. 4By way of example,
For example, the gas control and drive unit 20 includes the following components:
a soldout assembly 20a;
a gas inlet cover 20b;
a G series slide valve 20c;
a gas control cover 20d;
an actuator rod 20e; and
a gas control valve housing 20f.
The pump module 30 includes the following components:
an inlet housing 30a;
syrup input check valves 30b;
a piston shaft 30c;
an end cover 30d;
piston-diaphragms 30e1, 30e2;
a liquid chamber 30f;
syrup output check valves 30g;
an outlet housing 30h.
In modular BIB pump also includes a retainer clip 40 for coupling together the actuator rod 20e, and a second retainer clip 42 for coupling together the piston-diaphragm 30e1 and the piston shaft 30c.
The basic structural and functional cooperation between these components is described in further detail in relation to
By way of example,
By way of example,
By way of example,
As shown in
Once the gas is in the end cover 30d, gas pressure will act on the piston/diaphragm 30e1 resulting in an applied force Ap which will cause the piston shaft 30c to move in the direction of the arrow labeled Ap. As the piston shaft 30c moves, fluid in the liquid chamber 30f will be displaced through the outlet/discharge valves 30g of the outlet valve housing 30h, e.g., as indicated by the arrow shown and labeled Af.
The gas in area labeled 5 is allowed to be vented (connected) to atmosphere to allow for piston travel in the direction of the applied force, as shown. The gas exhaust GE escapes through the gas outlet or exhaust port GO, as shown.
FIG. 8By way of example,
As shown in
By way of example,
In
In
The piston-diaphragm 30e1, 30e2 reciprocates back and forth in order to draw liquid/fluid into a respective chamber, and displaced fluid from a respective chamber.
FIG. 10By way of example,
For example, during normal operation the pressure in the inlet area labeled (1) is near atmosphere and gas is routed through the soldout valve assembly 20a and into the pump. When the liquid/fluid (e.g., syrup) source runs out, the pressure in the inlet area (1) will be reduced to less than atmosphere. The pressure difference acting on the sensing diaphragm 20a′ will cause movement indicated by the arrow. The movement will cause the gas flow through the soldout valve assembly 20a to cease thereby stopping the modular BIB pump from continued operation. When the liquid/fluid (e.g., syrup) source is restored, pressure across the sensing diaphragm 20a′ will return to normal, and the soldout valve assembly 20a will allow gas to flow into the modular BIB pump 10.
By way of example, the processes happens whenever a liquid/fluid/syrup bag empties and needs to be replaced with a new liquid/fluid/syrup bag.
FIG. 11In
The pumping module change-out procedure for decoupling the pumping module 30 and the gas control and drive unit 20, e.g., including the following steps:
1). Press tabs 22a, 22b and pull the pumping module 30 away from gas control and drive unit 20 to expose interior of the pump 10, e.g., as shown in
2) Locate retainer clip 40 and disposable tool 50, as shown in
3) Insert the disposable tool 50 between the housings of the pumping module 30 and the gas control and drive unit 20 and push the retainer clip 40 to disengage the actuator rod 20e and the piston shaft 30c, e.g., as shown in
4) Pull the pumping module 30 and the gas control and drive unit 20 away from each other to fully disengage the pumping module 30 and the gas control and drive unit 20, e.g., as shown in
In
The pumping module change-out procedure for coupling the pumping module 30 and the gas control and drive unit 20 together, e.g., including the following steps:
1) Insert the pumping module 30 with tabs 22a, 22b aligned with the channels 32a, 32b in the gas control and drive unit 20, e.g., as shown in
2) Push the pumping module 30 to close gap between the piston shaft 30c and the actuator rod 20e, e.g., as shown in
3) Assure other fits are aligned before full insertion of the pumping module 30 and the gas control and drive unit 20 together, e.g., as shown in
4) Locate the retainer clip 40 and disposable tool 50; and position the retainer clip 40 in relation to the piston shaft 30c and the actuator rod 20e, e.g., as shown in
5) Insert the disposable tool 50 between the housings of the pumping module 30 and the gas control and drive unit 20 and push the retainer clip 40 to close and couple the piston shaft 30c and the actuator rod 20e, then remove the tool 50, e.g., as shown in
6) Push the pumping module 30 and the gas control and drive unit 20 together to fully fully seat the tabs 22a, 22b, e.g., as shown in
Possible Applications may include one or more of the following: Beverage PostMix Dispensing Systems
The Scope of the InventionWhile the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
In addition, may modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment(s) disclosed herein as the best mode contemplated for carrying out this invention.
Claims
1. A modular pump comprising:
- a gas control and drive unit having a gas control and drive unit housing configured to receive gas from a gas inlet and provide the gas to a gas passageway so as to cause a gas control and drive unit force, having an actuator rod and slide valve arrangement configured to respond to a cartridge style pumping module force in an axial direction and exhaust the gas from a gas exhaust outlet of the gas control and drive unit housing so as to cause a gas control and drive unit exhaustion force in an opposite axial direction, and also having a gas control and drive unit coupling member;
- a cartridge style pumping module having a cartridge style pump module housing configured to receive a fluid to be pumped from a fluid inlet, having a piston and dual diaphragm arrangement configured to respond to the gas control and drive unit force, provide the cartridge style pumping module force in the axial direction and pump the fluid from a fluid discharge outlet of the cartridge style pumping module, and also configured to respond to the gas control and drive unit exhaustion force in the opposite axial direction and pump the fluid from the fluid discharge outlet of the cartridge style pumping module, the cartridge style pumping module housing having a cartridge style pumping module coupling member configured to detachably couple to the gas control and drive unit coupling member; and
- a retainer clip configured to detachably couple together a piston of the piston and dual diaphragm arrangement and an actuator rod of the actuator rod and slide valve arrangement, so that the cartridge style pumping module can be attached and detached from the gas control and drive unit using a three step process so as to be field replaceable using a retainer clip attaching/detaching tool.
2. A modular pump according to claim 1, wherein the cartridge style pumping module is attached to the gas control and drive unit using the three step process, as follows:
- partially coupling together the cartridge style pumping module coupling member and the gas control and drive unit coupling member so as to leave a space between the cartridge style pumping module and the gas control and drive unit for accessing the retainer clip;
- attaching together the piston of the piston and dual diaphragm arrangement and the actuator rod of the actuator rod and slide valve arrangement with the retainer clip using the retainer clip attaching/detaching tool to push the retainer clip into a locking position; and
- fully coupling together the cartridge style pumping module coupling member and the gas control and drive unit coupling member in a locking engagement.
3. A modular pump according to claim 1, wherein the cartridge style pumping module is detached from the gas control and drive unit using the three step process, as follows:
- partially decoupling and unlocking the cartridge style pumping module coupling member and the gas control and drive unit coupling member from a locking engagement, so as to leave a space between the cartridge style pumping module and the gas control and drive unit for accessing the retainer clip;
- detaching the piston of the piston and dual diaphragm arrangement and the actuator rod of the actuator rod and slide valve arrangement by removing the retainer clip using the retainer clip attaching/detaching tool to push the retainer clip from a locking position; and
- fully decoupling together the cartridge style pumping module coupling member and the gas control and drive unit coupling member.
4. A modular pump according to claim 1, wherein
- the gas control and drive unit housing and the cartridge style pumping module housing are configured along a common longitudinal axis; and
- the cartridge style pumping module coupling member comprises a pair of tabs configured on opposite sides of the cartridge style pumping module housing and extending in parallel with the common longitudinal axis.
5. A modular pump according to claim 4, wherein the gas control and drive unit coupling member comprise a pair of channels configured on opposite sides of the gas control and drive unit housing and configured with openings to detachably couple to the pair of tabs.
6. A modular pump according to claim 5, wherein the pair of tabs are configured to deflect towards or away from the common longitudinal axis in order to couple or decouple to or from the pair of channels.
7. A modular pump according to claim 1, wherein the modular pump is a bag-in-the-box (BIB) pump for pumping syrup.
8. A modular pump according to claim 1, wherein
- the actuator rod comprises a tapered end having a slot or opening formed or configured therein;
- the piston shaft comprises a flanged portion having a cylindrical recessed channel portion, a rim portion and an interior cavity formed within the recessed channel portion configured to receive the tapered end;
- the retainer clip comprises a three prong clip having prongs;
- so that the tapered end is configured in the slot or opening, and the retainer clip is pushed so a center prong passed into and through the slot or opening and the interior cavity, and two outer prongs are adapted in the cylindrical recessed channel portion and engage the rim portion, so as to lock, fasten or couple the actuator rod and piston shaft together.
Type: Application
Filed: Mar 30, 2017
Publication Date: Oct 19, 2017
Inventors: Christopher H. VERDUGO (Yorba Linda, CA), Humberto V. MEZA (Trabuco Canyon, CA), David ALLEN (Santa Ana, CA), Rick HAYASHI (Westminister, CA)
Application Number: 15/474,523