Dispensing – With discharge assistant – With material supply container and discharge assistant with...
Patent
1996-08-21
1999-02-09
Derakshani, Philippe
Dispensing
With discharge assistant
With material supply container and discharge assistant with...
222494, B67D 540
Patent
active
058682872
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a liquid dispensing container for, for example, milky lotion, hand cream, foundation, shampoo, rinse, liquid dentifrice, mayonnaise, ketchup, paste and paint.
BACKGROUND ART
One example of a conventional liquid dispensing container that dispenses liquid contained in a liquid storage chamber is shown in FIG. 36.
In this conventional liquid dispensing container, a flexible container body 101 that can be pressed and deformed constitutes a liquid storage chamber 102 for storing liquids. At the top of the container body 101 is formed a dispensing opening 103 which has a threaded portion 104 at its outer periphery. A cap 105 is removably screwed on the threaded portion 104 to prevent drying of liquid and leakage of it when not in use.
In use, the cap 105 is taken off the container body 101 and the container body 101 is pressed to squeeze an appropriate amount of liquid from the liquid storage chamber 102 through the dispensing opening 103.
With the above conventional art, however, one may forget to put the cap 105 on the container after use. Moreover, during frequent use of the container, capping is troublesome for the user and he or she may leave it uncapped intentionally or carelessly for a long period of time, during which the surface of the liquid present in the dispensing opening 103 is exposed to the air and as a result it dries.
It is known that the air contains a variety of substances that may adversely affect human health, such as bacteria and dust. These substances, when they become mixed in the liquid, contaminate the liquid and in some cases produce mold and discoloration, making it very unsanitary. When such unsanitary liquid is a cosmetic or food it causes undesirable results.
SUMMARY OF THE INVENTION
An object of this invention is to provide an improved liquid dispensing container that solves the above problems.
Another object of this invention is to provide a novel liquid dispensing container that can prevent air or external foreign substance from entering the dispensing port and the interior of the container body, prevent the liquid from drying, and keep the liquid sanitary.
In the liquid dispensing container according to the first mode of this invention, which dispenses liquid from the liquid storage chamber through the dispensing port an elastic member that normally closes the dispensing port but opens it by the presence of liquid, is disposed at the dispensing port, and the opened part of the elastic member that is opened by the liquid pressure is made to function as the dispensing port.
In the liquid dispensing container according to the second mode of this invention, which dispenses liquid from the liquid storage chamber through the dispensing port of a nozzle, an elastic thin plate member is so fixed to the dispensing port as to be surrounded by the nozzle body, and a nonfixed part of the thin plate member is made to serve as the dispensing port.
In the liquid dispensing container according to the third mode of this invention, which dispenses liquid from the liquid storage chamber through the dispensing port, a filmlike member is fixed to the dispensing port with one part of the filmlike member unfixed, and the unfixed part of the filmlike member is made to function as the dispensing port.
In the liquid dispensing container according to the fourth mode of this invention, which dispenses liquid from the liquid storage chamber through the dispensing port of a nozzle, an elastic member is so fixed to the dispensing port as to be surrounded by the nozzle body, the elastic member forms a liquid passage that is normally closed, and the front end of portion of the liquid passage serves as the dispensing port.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a vertical cross section of one mode of this invention;
FIG. 2 is an enlarged vertical cross section of an essential portion of FIG. 1;
FIG. 3 is a plan view of FIG. 1 with a head cap removed;
FIG. 4 is a plan view of FIG. 3 with a thin plate member removed;
FIG. 5 is an essential-part cros
REFERENCES:
patent: 2792149 (1957-05-01), Lutz
patent: 4179051 (1979-12-01), Thomas
patent: 5154328 (1992-10-01), Gueret
Kumamoto Kenichi
Kurokawa Takumi
Usami Hideyuki
Derakshani Philippe
Pentel Kabushiki Kaisha
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