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US 10,850,458 B1Granted
Method of forming a container insert for use in a closed loop dispensing system
OwnerRodney Laibleinventor
Life of this patent
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Abstract
A container insert is disclosed for use with a closed loop dispensing system. The container insert is press-fitted into the throat of a liquid container. The container insert is comprised of a plastic substrate portion and an over-molded portion. This invention is directed to the method of simultaneously molding the plastic substrate portion and the over-molded portion.
Claims8
A method of forming a container insert for insertion into the throat of a container of a closed loop dispensing system, comprising the steps of:
- molding a plastic substrate portion including:
- (a) a cylindrical upper wall member having an upper end, a lower end, an inner side and an outer side;
- (b) a horizontally disposed lip extending outwardly from said upper end of said upper wall member;
- (c) a horizontally disposed and disc-shaped wall extending inwardly from said lower end of said upper wall member;
- (d) a cylindrical lower wall member, having an upper end and a lower end, extending downwardly from said lower end of said cylindrical wall member;
- (e) a vertically disposed hollow tube molded with said horizontally disposed and disc-shaped wall at the center thereof and which has an open upper end, and an open lower end, an outer surface and an inner surface;
- (f) said open lower end of said hollow tube being positioned below said horizontally disposed and disc-shaped wall;
- (g) said open upper end of said hollow tube being positioned above said horizontally disposed and disc-shaped wall;
- (h) said horizontally disposed and disc-shaped wall having a plurality of radially spaced-apart openings, having upper and lower ends, formed therein outwardly of said hollow tube;
- simultaneously overmolding said substrate portion at the time that said substrate portion is molded whereby said overmolding embraces:
- (a) said outer side of said cylindrical upper wall member;
- (b) said horizontally disposed lip;
- (c) said inner side of said cylindrical upper wall member;
- (d) said horizontally disposed and disc-shaped wall;
- (e) said lower ends of said radially spaced-apart openings;
- (f) said outer surface of said vertically disposed hollow tube;
- (g) said upper end of said vertically disposed hollow tube;
- said overmolding at said upper end of said hollow tube having a slit valve formed therein;
- and
- said overmolding at said lower ends of said radially spaced-apart opening having a slit valve formed therein.
17 more elements
Dependencies are inferred from the claim text.