Multi-material, multi-shot, injection molded dispensing closure having a removable seal
First Claim
1. A dispensing closure for an opening to a container interior, said closure comprising:
- a base;
said base including a body injection molded from a first material for mounting to said container around said opening, said base body including an end that defines a dispensing orifice for communicating with said container opening and that defines a pour spout; and
said base including a tamper-evident seal structure subsequently injection molded from a second material, said seal structure including a peripheral portion molded against said base body end and attached thereto, said seal structure including a partition consisting of said second material extending across said dispensing orifice and connected around its periphery with a frangible, reduced thickness section of said second material to said seal structure peripheral portion, said seal structure including a grip member extending from said partition for being pulled to tear only said partition and grip member together away from said seal structure peripheral portion to open said dispensing orifice.
2 Assignments
0 Petitions
Accused Products
Abstract
A closure is provided for a container and includes a base which preferably has an attached lid. The base includes a body for mounting to the container, and the body defines a dispensing orifice and spout. A tamper-evident seal initially closes the dispensing orifice. The body is injection molded from a first material. The tamper-evident seal structure is subsequently injection-molded from a second material. The seal structure includes a peripheral portion molded against the base body and attached thereto. The seal structure includes a partition consisting only of the second material extending across the dispensing orifice and connected around its periphery to the seal structure peripheral portion with a frangible, reduced thickness section of the second material. A grip member extends from the partition for being pulled to tear only the partition and grip member together away from the seal structure peripheral portion so as to open the dispensing orifice.
135 Citations
14 Claims
-
1. A dispensing closure for an opening to a container interior, said closure comprising:
-
a base; said base including a body injection molded from a first material for mounting to said container around said opening, said base body including an end that defines a dispensing orifice for communicating with said container opening and that defines a pour spout; and said base including a tamper-evident seal structure subsequently injection molded from a second material, said seal structure including a peripheral portion molded against said base body end and attached thereto, said seal structure including a partition consisting of said second material extending across said dispensing orifice and connected around its periphery with a frangible, reduced thickness section of said second material to said seal structure peripheral portion, said seal structure including a grip member extending from said partition for being pulled to tear only said partition and grip member together away from said seal structure peripheral portion to open said dispensing orifice. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A dispensing closure for an opening to a container interior, said closure comprising:
-
a base; said base including a body injection molded from a first material for mounting to said container around said opening, said base body including an end that defines a dispensing orifice for communicating with said container opening and that defines a pour spout, said end including a deck defining at least (1) a frustoconical seating surface around said orifice, (2) an inner annular shoulder around said seating surface, and (3) at least one outer shoulder that is radially outwardly of said inner shoulder and that is axially displaced from said inner shoulder toward said container; and said base including a tamper-evident seal structure subsequently injection molded from a second material, said seal structure including a peripheral portion molded against and attached at least to said base body (1) deck seating surface, (2) inner annular shoulder, and (3) outer annular shoulder, said seal structure including a partition consisting of said second material extending across said dispensing orifice and connected around its periphery with a frangible, reduced thickness section of said second material to said seal structure peripheral portion, said seal structure including a grip member extending from said partition for being pulled to tear only said partition and grip member together away from said seal structure peripheral portion to open said dispensing orifice. - View Dependent Claims (9, 10)
-
-
11. A method for making a dispensing closure for an opening to a container interior, said method comprising the steps of:
-
(A) injection molding a first material to form a body that mounts on said container around said opening and that includes an end that defines a dispensing orifice for communicating with said container opening and defines a pour spout; (B) subsequently injection molding a tamper-evident seal structure from a second material to include (1) a peripheral portion molded against said body end, (2) a partition that extends across said dispensing orifice and that is connected around its periphery with a frangible, reduced thickness section of said second material to said peripheral portion, and (3) a grip member extending from said partition for being pulled to tear only said partition and grip member together away from said peripheral portion to open said dispensing orifice; and (C) effecting an attachment of said seal structure peripheral portion to said body. - View Dependent Claims (12, 13, 14)
-
Specification