Dispensing head for a product of liquid to viscous consistency,

Details Dispensing head for a product of liquid to viscous consistency, Dispensing head for a product of liquid to viscous consistency,

1997-07-01

1999-07-20

Walczak, David J.

Dispensing

Outlet element operated by pressure of contents

Spring form, resilient or compressible flow controller or...

222212, 222213, 222491, 2225414, 222544, B65D 572

Patent

active

059246057

ABSTRACT:
A dispensing head for the dispensing a product of a liquid to viscous consistency from a container includes a rigid cap (2) and an elastic closing element (4) joined to the cap (2), and a zone of smaller thickness delimited by the edges of a groove (6) made in the elastic element. The zone of a smaller thickness ruptures under the effect of a pressure exerted on one side or the other of the elastic element (4) to define at least one slit (5) capable of opening under the thrust of the product with a view to its dispensing, and returning to its contiguous position when this thrust ceases to be applied. The rupture may occur during manufacture to form the slit or may be caused by a user squeezing the container prior to first use of the product.

REFERENCES:
patent: 2061124 (1936-11-01), Walther
patent: 2122299 (1938-06-01), Sloan
patent: 2173627 (1939-09-01), Jecusco
patent: 4561570 (1985-12-01), Zulauf et al.
patent: 5071017 (1991-12-01), Stull
patent: 5632420 (1997-05-01), Lohrman et al.

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