Injection-molded lid for an aerosol container

Details Injection-molded lid for an aerosol container Injection-molded lid for an aerosol container

1990-06-29

1992-01-28

Huppert, Michael S.

Dispensing

With discharge assistant

Fluid pressure

2224021, B65D 8300

Patent

active

050836846

ABSTRACT:
An aerosol container includes a cylindrical container body having an open end, a lid injection-molded from a thermoplastic resin material and sealingly coupled to the container body and defining a mouth opening, and a metal dispensing cap sealingly coupled to the lid and closing the mouth opening. The dispensing cap is provided with a dispensing nozzle for dispensing the contents of the container in aerosol form. The lid itself includes an upper annular mounting bead sealingly coupled to the dispensing cap and having an interior upper surface (that establishes the mouth opening), and an interior lower surface that is radially outwardly disposed relative to the interior upper surface thereof. Important to the present invention, the lid includes at least three gates circumferentially equally spaced-apart relative to one another along the interior lower surface of the mounting bead. Preferably, the lid includes radial recessed slots formed in the interior lower surface of the mounting bead, wherein the gates are located within respective ones of the slots.

REFERENCES:
patent: 3333743 (1967-08-01), Meyers
patent: 4261473 (1981-04-01), Yamada et al.
patent: 4762254 (1988-08-01), Nitta
Plastic Mold Engineering Handbook, edited by DuBois and Pribble, "Gating Systems", pp. 399-402, copyright 1978.
Injection Molding Handbook, edited by Rosato, P.E. and Rosato, Ph.D., "Gates", pp. 183-186, copyright 1986.

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