Dispensing – With material treatment or conditioning means
Reexamination Certificate
2000-07-27
2001-10-09
Kaufman, Joseph A. (Department: 3754)
Dispensing
With material treatment or conditioning means
C222S321900, C239S333000
Reexamination Certificate
active
06299028
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a container provided with a pump for discharging bubbles which is capable of bubbling up liquid (for instance, liquid for cleansing foam, liquid for shaving cream and the like) received in a container body to make the liquid flow in a foamy state.
BACKGROUND OF THE INVENTION
For instance, the container disclosed in International Publication No. WO92/08657 can be exemplified as a container with a pump for discharging bubbles. The container is provided with a container body for receiving liquid having a bubbling property such as a liquid detergent and a pump for discharging bubbles provided on a neck portion of the container body, and they are constructed so that, by depressing a pump head of the pump for discharging bubbles, the liquid is pumped up from the container body and the air is sucked from the outside of the carrier body to mix the liquid and the air. And then, the vapor-liquid mixture is bubbled via a net (bubbling member) provided within the pump and the bubbles are discharged from a nozzle of the pump head.
The pump for discharging bubbles has had various problems as follows.
(a) It sometimes happens that the sucked outside air intrudes into the container body to bubble the liquid, and the liquid surface within the container body is filled with the bubbles, when the bubbles are discharged.
(b) It is difficult to discharge the bubbles in a straight line form relatively for a long range.
(c) A coil spring for energizing the pump head upwards all the time is received in a region where it is in contact with the liquid, and the contact of the coil spring with the liquid may be not desirable depending on the kind of the liquid received in the container body,
(d) It is not possible to change a discharging form of the bubbles.
(e) There is the possibility that only the air passes through the net (bubbling member) before the liquid passes through the net at the first stage of discharging bubbles, and the bubbles will be discharged unseemly in that case, because the liquid which has remained within the net at the last discharging is formed into larger bubbles by flow of only the air and the large bubbles are discharged from the nozzle of the pump head.
(f) It sometimes happens that the balance of the volumes of the liquid and air to be mixed is lost and the liquid volume becomes smaller than the air volume, and accordingly the bubbling will be incomplete at the first stage of discharging bubbles.
Although the container disclosed Japanese Patent Application No. 6-136411(1994) exists as a container with a pump for discharging bubbles improved in the point of (f), it also leaves room for improvements as follows.
(g) It is difficult to change the size of bubbles (diameter of the bubbles).
(h) A measure for preventing a undesired leakage of liquid which is likely to occur when the container is overturned and so on is not complete.
(e) It sometimes happens that the bubbles adhered to the net (bubbling member) gets dry to clog the net when it is not used, and the bubbles will be formed badly hereafter.
An object of the present invention is to provide a container with a pump for discharging bubbles in which the liquid is not bubbled before it is bubbled in a bubbling member so that the container body will not be filled with bubbles; a container with a pump for discharging bubbles which is capable of discharging the bubbles in a straight line form relatively for a long range; a container with a pump for discharging bubbles in which a coil spring for energizing a pump head upwards all the time is provided in a position isolated from the liquid; a container with a pump for discharging bubbles which is capable of changing a discharging form of bubbles; a container with a pump for discharging bubble which is capable of discharging bubbles stably in a state that the size of bubbles is fixed from the first stage of discharging bubbles; a container with a pump for discharging bubbles which is capable of changing the diameter of bubbles easily; a container with a pump for discharging bubbles which is capable of preventing an undesirable leakage of liquid and a container with a pump for discharging bubbles in which the net (bubbling member) in not clogged up due to drying.
DISCLOSURE OF THE INVENTION
The first invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:
(a) a cylinder for liquid in which a first piston slides;
(b) a cylinder for air in which a second piston slides;
(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;
(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and
(e) a bubbling member provided on a space between the nozzle and the vapor-liquid mixing chamber,
liquid within the container body and outside air are joined in the vapor-liquid mixing chamber and joined vapor-liquid is bubbled via the bubbling member to be discharged in foamy state from the nozzle by depressing the pump head, and
the pump head has a double-pipe structured comprising an inside cylinder member and an outside cylinder member which are fitted in a state that they can be rotated one another, the nozzle is provided on the outside cylinder member, the inside cylinder member is provided with a bubble flow portion positioned on the downstream side of the bubbling member, the bubble flow portion is provided with a plurality of discharging holes which vary in diameters, and the container is constructed such that the nozzle of the outside cylinder member is positioned in front of one of the discharging holes of the inside cylinder member to be communicated and the other discharging hole is closed by rotating the outside cylinder member and the inside cylinder member relatively.
By premising the first invention, the second invention of the present application provides one having a position of the outside cylinder member which makes it possible to close the nozzle without connecting the nozzles to any discharging holes of the inside cylinder member.
The third invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:
(a) a cylinder for liquid in which a first piston slides;
(b) a cylinder for air in which a second piston slides;
(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;
(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and
(e) bubbling member provided between the nozzle and the vapor-liquid mixing chamber,
liquid within the container body and outside air are joined in the vapor-liquid mixing chamber and the joined vapor-liquid is bubbled via the bubbling member to be discharged in a foamy state from the nozzle by depressing the pump head, and
a nozzle attachment which is capable of reducing the diameter of the hole for discharging bubbles is provided on the nozzle of the pump head.
By premising the third invention, the fourth invention of the present invention provides one in which the nozzle attachment comprises a cylinder body portion provided on the nozzle and a closing body which is provided on an end of the cylinder body portion via a hinge in a state that it can be rotated to open and close the end opening of the cylinder body portion, and a discharging nozzle whose diameter is smaller than that of the end opening of the cylinder body portion is provided on the closing body.
The fifth invention of the present application provides a
Iizuka Shigeo
Mizushima Hiroshi
Saito Tadao
Tsuchida Haruo
Kaufman Joseph A.
Oliff & Berridg,e PLC
Yoshino Kogyosho Co. Ltd.
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