Hinged plug type lid

Details Hinged plug type lid Hinged plug type lid

1982-05-03

1988-07-26

Shaver, Kevin P.

Dispensing

With flow controller or closure

Pivoted

220254, 220339, 222143, 206508, B65D 5118

Patent

active

047594780

ABSTRACT:
A container top closure integrally formed from plastic polymer material as by injection molding. The closure is adapted to be attached to the upper end of a container for granular or other pourable material. A single plastic member, such as polypropylene, or polyethylene, is provided with a dispensing opening, the opening having an integral skirt downwardly depending from three sides of its periphery, to define a first dispensing opening surface. A closure flap, integrally formed with the member which defines the top closure, carries two sealing surfaces which cooperate with complementary surfaces formed around the dispensing opening. The sealing surfaces provide increased moisture entrance resistance across the dispensing opening.

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patent: 4280636 (1981-07-01), Lewis
patent: 4402451 (1983-09-01), Woerz et al.
patent: 4420093 (1983-12-01), Von Holdt
patent: 4421244 (1983-12-01), Van Melle
patent: 4452382 (1984-06-01), Von Holdt

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