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1. WO2020162951 - INSERT DE RÉCIPIENT DESTINÉ À ÊTRE UTILISÉ DANS UN SYSTÈME DE DISTRIBUTION EN BOUCLE FERMÉE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

I CLAIM:

1. A container insert for insertion into the throat of a liquid container of a closed loop dispensing system, comprising:

a plastic substrate portion including:

(a) a horizontally disposed ring-shaped lip having an upper side, a lower side, an outer end and an inner end;

(b) a generally cylindrical upper wall member having an open upper end, an open lower end, an inner side and an outer side;

(c) said upper wall member extending downwardly from said inner end of said lip whereby said lip protrudes outwardly from said upper end of said upper wall member;

(d) a horizontally disposed and generally disc-shaped wall at said lower end of said upper wall member having an upper side and a lower side;

(e) a generally cylindrical lower wall member having an open upper end, an open lower end, an inner side and an outer side;

(f) said lower wall member extending downwardly from said disc-shaped wall inwardly of said lower end of said upper wall member;

(g) a vertically disposed and cylindrical hollow tube, having an open upper end and an open lower end, molded with said disc-shaped wall at the center of said disc-shaped wall;

(h) said open upper end of said hollow tube being positioned above said disc-shaped wall;

(1) said open lower end of said hollow tube being positioned below said disc-shaped wall;

(j) said open lower end of said hollow tube being configured to have a dip tube secured thereto with the dip tube being in liquid communication with the container;

(k) said disc-shaped wall having a plurality of radially spaced-apart

openings formed therein outwardly of said hollow tube;

an over-molded portion including:

(a) a horizontally disposed and ring-shaped lip positioned on said upper side of said lip of said substrate portion with said lip having an inner end and an outer end;

(b) a vertically disposed first wall section, having upper and lower ends, extending downwardly from said outer end of said lip of said over- molded portion outwardly of said lip of said substrate portion;

(c) a horizontally disposed second wall section, having inner and outer ends, extending inwardly from said lower end of said first wall section below said lip of said substrate section;

(d) a vertically disposed and generally cylindrical third wall section, having upper and lower ends, extending downwardly from said inner end of said second wall section at said outer side of said upper wall member of said substrate portion;

(e) a vertically disposed and generally cylindrical inner wall section, having upper and lower ends, extending downwardly from said inner end of said lip of said over-molded portion at said inner side of said upper wall member of said substrate portion;

(f) a horizontally disposed and generally disc-shaped wall at said lower end of said inner wall section of said over-molded portion;

(g) a vertically disposed and hollow cylindrical tube, having an open upper end, extending upwardly from said disc-shaped wall of said over-molded portion which embraces said hollow tube of said substrate portion;

(h) a flexible valve, having an upper side and a lower side positioned in said open upper end of hollow cylindrical tube of said over-molded portion to normally close said open upper end of said hollow tube of said substrate portion and said hollow cylindrical tube of said over-molded portion;

(1) said flexible valve being opened upon said upper side of said flexible valve being subjected to a suction force thereby permitting liquid from said container to be passed upwardly therethrough;

(j) said disc-shaped wall of said over-molded portion having a plurality of radially spaced-apart openings formed therein which register with said radially spaced-apart openings formed in said disc-shaped wall of said substrate;

(k) a hollow plastic protrusion, having upper and lower ends, extending downwardly from each of said plurality of spaced-apart openings in said disc-shaped wall of said over-molded portion through a registering opening of the said plurality of radially spaced-apart openings in said disc-shaped wall of said substrate;

each of said protrusions having a bi-directional valve at said lower end thereof; each of said bi-directional valves being normally closed to prevent liquid from passing upwardly therethrough; and

each of said bi-directional valves being movable to an open position to permit air to pass downwardly therethrough to vent the container.

2. The container insert of Claim 1 wherein said container insert is completely comprised of a plastic material.

3. The container insert of Claim 1 wherein said flexible valve has a pair of intersecting slits formed therein.

4. The container insert of Claim 1 wherein each of said bi-directional valves have a single slit formed therein.

5. In combination:

a liquid container having upper and lower ends;

said container having a hollow throat extending upwardly therefrom which has interior and exterior surfaces;

a container insert, having upper and lower ends, positioned in said throat of said container;

said container insert comprising:

a plastic substrate portion including:

(a) a horizontally disposed ring-shaped lip having an upper side, a lower side, an outer end and an inner end;

(b) a generally cylindrical upper wall member having an open upper end, an open lower end, an inner side and an outer side;

(c) said upper wall member extending downwardly from said inner end of said lip whereby said lip protrudes outwardly from said upper end of said upper wall member;

(d) a horizontally disposed and generally disc-shaped wall at said lower end of said upper wall member having an upper side and a lower side;

(e) a generally cylindrical lower wall member having an open upper end, an open lower end, an inner side and an outer side;

(f) said lower wall member extending downwardly from said disc-shaped wall inwardly of said lower end of said upper wall member;

(g) a vertically disposed and cylindrical hollow tube, having an open upper end and an open lower end, molded with said disc-shaped wall at the center of said disc-shaped wall;

(h) said open upper end of said hollow tube being positioned above said disc-shaped wall;

(i) said open lower end of said hollow tube being positioned below said disc-shaped wall;

(j) said open lower end of said hollow tube being configured to have a dip tube secured thereto with the dip tube being in liquid communication with the container;

(k) said disc-shaped wall having a plurality of radially spaced-apart

openings formed therein outwardly of said hollow tube;

an over-molded portion including:

(a) a horizontally disposed and ring-shaped lip positioned on said upper side of said tip of said substrate portion with said lip having an inner end and an outer end;

(b) a vertically disposed first wall section, having upper and lower ends, extending downwardly from said outer end of said lip of said overmolded portion outwardly of said lip of said substrate portion;

(c) a horizontally disposed second wall section, having inner and outer ends, extending inwardly from said lower end of said first wall section below said lip of said substrate section;

(d) a vertically disposed and generally cylindrical third wall section, having upper and lower ends, extending downwardly from said inner end of said second wall section at said outer side of said upper wall member of said substrate portion;

(e) a vertically disposed and generally cylindrical inner wall section, having upper and lower ends, extending downwardly from said inner end of

said lip of said over-molded portion at said inner side of said upper wall member of said substrate portion;

(f) a horizontally disposed and generally disc-shaped wall at said lower end of said inner wall section of said over-molded portion;

(g) a vertically disposed and hollow cylindrical tube, having an open upper end, extending upwardly from said disc-shaped wall of said over-molded portion which embraces said hollow tube of said substrate portion;

(h) a flexible valve, having an upper side and a lower side positioned in said open upper end of hollow cylindrical tube of said over-molded portion to normally close said open upper end of said hollow tube of said substrate portion and said hollow cylindrical tube of said over-molded portion;

(1) said flexible valve being opened upon said upper side of said flexible valve being subjected to a suction force thereby permitting liquid from said container to be passed upwardly therethrough;

(i) said disc-shaped wall of said over-molded portion having a plurality of radially spaced-apart openings formed therein which register with said radially spaced-apart openings formed in said disc-shaped wall of said substrate;

(k) a hollow plastic protrusion, having upper and lower ends, extending downwardly from each of said plurality of spaced-apart openings in said disc-shaped wall of said over-molded portion through a registering

opening of the said plurality of radially spaced-apart openings in said disc-shaped wall of said substrate;

each of said protrusions having a bi-directional valve at said lower end thereof; each of said bi-directional valves being normally closed to prevent liquid from passing upwardly therethrough; and

each of said bi-directional valves being movable to an open position to permit air to pass downwardly therethrough to vent the container.

6. The container insert of Claim 5 wherein said container insert is completely comprised of a plastic material.

7. The container insert of Claim 5 wherein said flexible valve has a pair of intersecting slits formed therein.

8. The container insert of Claim 5 wherein each of said bi-directional valves have a single slit formed therein.

9. A container insert, having an upper end and a lower end, for insertion into the throat of a liquid container of a closed loop dispensing system, comprising: a central upstanding tubular member having an open upper end and an open lower end;

said open lower end of said tubular member being configured to have a dip tube secured thereto;

said open upper end of said tubular member being configured to be received in a dispensing cap assembly;

a normally closed valve mounted on said upper end of said tubular member;

said valve having an upper side;

said valve having a pair of intersecting slits formed therein to permit said valve to be selectively opened; and

said valve being moved from its said normally closed position to an open position upon a suction force being applied to said upper side of said valve.

10. The container insert of Claim 1 wherein the throat of the liquid container has external threads and wherein a dispenser cap assembly is provided with the dispenser cap assembly comprising:

(a) a locking collar having an upper end, a lower end, an internally

threaded portion at said lower end thereof and a cylindrical chamber above said internally threaded portion;

(b) said internally threaded portion of said locking collar configured to be threadably secured to the external threads of the throat of the liquid container;

(c) a dispensing cap member having an open lower end;

(d) said dispensing cap member positioned in said cylindrical chamber;

(e) a dispensing tube support extending upwardly from said cap member;

(f) a dispensing tube mounted on said dispensing tube support which extends to a dispenser;

(g) a valve body snap-fitted into said lower end of said locking collar;

(h) said valve body being connected to said dispensing cap member to maintain said dispensing cap member in said locking collar;

(i) said valve body including an open lower end and a valve seat;

(j) a normally closed umbrella valve movably positioned in said valve seat;

(k) said valve being opened when liquid is being drawn from the liquid container so that liquid may pass upwardly therethrough; and

(L) said valve being closed, when said cap assembly is disconnected from the liquid container, to prevent back flow of liquid from said dispensing tube.

11. The container insert of Claim 5 wherein the throat of the liquid container has external threads and wherein a dispenser cap assembly is provided with the dispenser cap assembly comprising:

(a) a locking collar having an upper end, a lower end, an internally

threaded portion at said lower end thereof and a cylindrical chamber above said internally threaded portion;

(b) said internally threaded portion of said locking collar configured to be threadably secured to the external threads of the throat of the liquid container;

(c) a dispensing cap member having an open lower end;

(d) said dispensing cap member positioned in said cylindrical chamber;

(e) a dispensing tube support extending upwardly from said cap member;

(f) a dispensing tube mounted on said dispensing tube support which extends to a dispenser;

(g) a valve body snap-fitted into said lower end of said locking collar;

(h) said valve body being connected to said dispensing cap member to maintain said dispinsing cap member in said locking collar;

(i) said valve body including an open lower end and a valve seat;

(j) a normally closed umbrella valve movably positioned in said valve seat;

(k) said valve being opened when liquid is being drawn from the liquid container so that liquid may pass upwardly therethrough; and

(L) said valve being closed, when said cap assembly is disconnected from the liquid container, to prevent back flow of liquid from said dispensing tube.