Container insert for use with a closed loop system
View Patent ↗An insert for use with a closed loop system, a dispensing system, a gravity draining system or other systems. The insert is designed to be inserted into the throat of a container such as a bottle. The insert includes a cylindrical seal which has a hardness which is less than the other components of the insert. The seal compensates for varying inside diameters of the throat of the container. The seal may be overmolded into a cylindrical recess formed in the insert or may be separately molded and then positioned in the cylindrical recess.
1. An insert for use with a closed loop system including
a container having a throat with an inside surface, comprising:
a horizontally disposed ring-shaped lip having an upper side, a lower side, an outer end, and an inner end;
a cylindrical first wall member having an upper end, a lower end, an inner surface and an outer surface;
said first wall member extending downwardly from said inner end of said lip whereby said lip protrudes outwardly from said upper end of said first wall member;
an annular shoulder, having inner and outer ends, at said lower end of said first wall member;
a second wall member, having an upper end and an open lower end, extending downwardly from said inner end of said shoulder;
said open lower end of said second wall member having internal threads formed therein;
a tubular member having upper and lower ends;
said tubular member being positioned within said first and second wall members;
said lower end of said tubular member being fixed to second wall member;
said lip, said first wall member, said shoulder, said second wall member and said tubular member being injection molded with a plastic material having a first hardness;
said outer surface of said first wall member having a cylindrical recess formed therein;
and a seal having an upper end, a lower end, an inner side and an outer side;
said seal being comprised of a plastic material which is positioned in said cylindrical recess in said outer surface of said first wall member after the other parts of the insert have been injected molded;
said outer surface of said seal being downwardly and inwardly curved;
said seal being comprised of a plastic material which has a hardness less than the said first hardness.
2. The insert of claim 1 wherein said shoulder is downwardly and inwardly tapered.
3. The insert of claim 1 wherein said seal is comprised of a low density polyethylene material and wherein the other parts of the insert are comprised of a polypropylene material.
4. The insert of claim 1 wherein said seal is overmolded into said cylindrical recess.
5. An insert for use with a liquid container having a throat with an inside surface, comprising:
a horizontally disposed ring-shaped lip having an upper side, a lower side, an outer end, and an inner end;
a cylindrical first wall member having an upper end, a lower end, an inner surface and an outer surface;
said first wall member extending downwardly from said inner end of said lip whereby said lip protrudes outwardly from said upper end of said first wall member;
an annular shoulder, having inner and outer ends, at said lower end of said first wall member;
a second wall member, having an upper end and an open lower end, extending downwardly from said inner end of said shoulder;
said open lower end of said second wall member having internal threads formed therein;
a tubular member having upper and lower ends;
said tubular member being positioned within said first and second wall members;
said lower end of said tubular member being fixed to said second wall member;
said lip, said first wall member, said shoulder, said second wall member and said tubular member being injection molded with a plastic material having a first hardness;
said outer surface of said first wall member having a cylindrical recess formed therein;
and a seal having an upper end, a lower end, an inner side and an outer side;
said seal being comprised of a plastic material which is positioned in said cylindrical recess in said outer surface of said first wall member after the other parts of the insert have been injected molded;
said seal being comprised of a plastic material which has a hardness less than the said first hardness.
6. The insert of claim 5 wherein said shoulder is downwardly and inwardly tapered.
7. The insert of claim 5 wherein said seal is comprised of a low density polyethylene material and wherein the other parts of the insert are comprised of a polypropylene material.
8. The insert of claim 5 wherein said outer surface of said seal is downwardly and inwardly curved.
9. The insert of claim 5 wherein said seal is overmolded into said cylindrical recess.