JPS6147362A - Dispenser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION BACKGROUND OF THE INVENTION Numerous storage, transport and dispensing devices are known that utilize bagging and dispensing by pressure. For example, in U.S. Patent No. 3,255,923,
A bag-like patch is described that stores and disposes of liquid contents. Although the bag economically and effectively protects the contents, the structure has little self-supporting form and serves primarily as a convenient disposable container.

U.S. Patent Nos. 3,255,967 and 3,270;
No. 920 describes an apparatus in which the contents of the bag are forced out of a container by the action of an internal gas source or an external gas source. In either case, valve means are required to vary the extent to which the contents are forced out of the bag.

U.S. Patent Nos. 3,203,592 and 3,603,
No. 484 discloses dispensing the contents by puncturing the inner container by means of projections provided on the outer container, and
Alternatively, various devices have been described that mix the components internally.

However, none of the prior art devices has a convenient sealed collapsible container that allows it to be a self-contained accessory while preserving the economy and convenience of bag transportation and storage.

[Summary of the invention]

The present invention provides a heretofore unobtainable improvement over conventional storage and dispensing devices for use with flowable substances, but which includes a resilient, preferably two-part outer container in the form of a resilient, preferably two-part outer container. Provides a structure that can be crushed. The container is adapted to receive and position an inner bag structure such that in one position the bag communicates with the exterior of the structure via a check valve while allowing air to flow between the bag and the inner surface of the container. It communicates with the one-way check valve of fjS2 arranged to allow flow. In a preferred embodiment, the bag can also be placed in an initially sealed but resilient deformable container such that when the two parts of the container are secured together, the two part container is The implant is secured between opposing annular surfaces formed in the implant and can be perforated by a portion of the container adjacent the first check valve.

Accordingly, the present invention comprises a flexible bag structure adapted to contain a flowable substance, and a shape enclosing the bag structure, communicating with the exterior of the outer container at -i and at the other end. a resilient outer container defining a dispensing channel in communication with the interior of the bag structure; a first one-way check valve disposed within the channel and oriented to permit flow from the bag structure; a second one-way check valve disposed on the outer surface of the outer container so that flow occurs from the outside of the resilient container into the volume configured to open the bag structure and the resilient container; Provides a device for dispensing a sexual substance.

The present invention provides a method for dispensing a flowable substance from a collapsible container by stretching a resilient outer container and a bag structure containing the flowable substance therein to reduce the enclosed volume and lowering the ambient pressure on the flowable substance. generating a high pressure; - passing the flowable substance under pressure through a dispensing channel communicating from the interior of the bag structure to the exterior of the dispensing device; and activating a first one-way check valve in the dispensing channel; opening to allow the flowable substance to flow to the exterior of the dispensing device, releasing the resilient container to bring the internal pressure below ambient pressure, and closing the first one-way check valve as a result of the pressure reversal. , M communicating between the exterior of the resilient container and the interior of the resilient container as well as the open configured volume of the bag structure.
Open one-way check valves 1 and 2 to allow air to flow into this volume, so that when the container returns to its unstressed form, the internal pressure of the resilient container is approximately equal to the ambient pressure. Also provided is a method comprising the steps of:

〔Example〕

Although like reference numerals are used throughout the drawings, the storage and dispensing structure of the present invention is illustrated in FIG. It is comprised of a cap portion 20, designated by the reference numeral 20, and a main body portion, generally designated by the reference numeral 30. As shown,
The bag insert 10 is formed of a flexible, impermeable material, such as a polymeric film material, and is adapted to contain a fluid content, such as a liquid or a powdered solid of a flowable substance.

As a portion of the relatively rigid curved top surface 13 of the bag insert 10, a rigid annular ridge 14 provides structural strength as well as a positioning means as will be described in more detail below. Preferably, cap portion 20 defines a threaded base 22 and an interposer 24 . The interposer can be of a different material than the base 22, while a stop valve 25 is constructed therein, which in the preferred form is shown as a flapper valve.

Other check valves, such as spring-loaded ball or date valves, may work, but are typically more expensive.

Body portion 30 has a generally resilient, preferably polymeric body portion 32 with external threads 34 provided thereon.

As shown in detail in FIG. 2, when the housing body 12 is secured within the body portion 32 and the body portion 32 is deformed inwardly, such as by crushing, the contents of the housing body 12 are transferred to the one-way valve 25.
It is forced through outlet channel 26 under sufficient pressure to open it. A conical insert 28 configured at the end of the outlet channel 26 opposite the valve 25 is connected to the mounting body 1.
2 and into sealing engagement therewith. A second one-way check valve 36 in the form of a flapper valve.
is configured in the body portion 32, and after the contents have been extruded from the packaging body 12 and the resilient body portion 32 has been able to return to its original shape, the air absorbs the reduced pressure generated. Make it possible to release it. On the other hand, flapper valves, which are preferably used as stop valves 25 and 36, are essentially biased toward each other, but can expand when there is a pressure difference in a predetermined direction. It has the shape of two surfaces, thus allowing flow to pass through, but when there is a pressure difference in the opposite direction, these surfaces come into even tighter pressure contact, increasing the sealing effect. It has become.

The sectional view of FIG. 3 shows a preferred one-way check valve 25 vtr&ffi! The first page is shown in more detail. The outlet flow path 26 is an open flow path, but terminates near a one-way check valve 25, which is normally sealed.

Although the check valve is shown in cross-section as only one half of the flapper valve, it has a mirror image portion in sealing engagement with the portion shown. The pressurized contents enter the outlet channel 26
The passage causes the flapper valve to expand from its normal shape of a closed slit to an egg shape or, when pressure is high, more like a circular opening.

However, when the pressure on the contents disappears, the flap valve returns to its normal slit shape. Therefore, if the pressure were to reverse and flow from outside the structure to the outlet passage 26, the external pressure would simply cause the flapper valve to seal even tighter;
This prevents backflow. In this way, even air is substantially isolated from the contents of the bag structure 10.

The assembly and preferred construction of this dispensing device may be better understood by viewing FIG. This figure shows that a pierceable seal 17 is stretched over the opening 16, thus making the bag structure 10 available for transport and storage. However, a conical insert 28 configured in the inner central portion of the cap portion 20 abuts the pierceable seal 17 i! - Now, as shown in Figure tIS2, it engages with the wall constituting the opening 16 and seals this wall. This connects the internal threads 29 of the cap portion 20 to the external threads 34 of the body portion 30.
This is normally done when the screw is engaged and rotated. Furthermore, when the cap portion 20 is arranged and fixed to the main body portion 30, the annular fixing surface 27 formed on the cap portion 20,
An annular ridge 1 formed in the circumferential direction of the upper part of the bag-structure 10
4 to engage the surface of an annular recess 37 formed along the upper inner portion of the body portion 30.
the bag structure 10 between the cap portion 20 and the body portion 30 with the conical insert 28 pierced through the perforable 17 and sealing the wall of the opening 16 of the bag structure 10. Position it firmly. Of course,
Before fitting the cap portion 20 to the main body portion 30, seal 1
7 may be removed manually.

Therefore, when the parts of the dispensing structure are assembled as described above,
The user grasps and crushes the resilient outer container, thus forcing the fluid contents of the inner bag structure to flow into the outlet channel and finally through the first flapper valve 25, conveniently and precisely. It can be distributed. When the collapsible container is released, air flows through the other 7-trumpet valve formed in the outer container, allowing the outer container to return to its relaxed shape and the bag structure , the volume usually decreases by an amount corresponding to the dispensed contents.

This reversal of pressure causes the first flapper valve to tightly seal and protect the contents of the bag structure.

In summary, the collapsible dispensing structure of the present invention has a number of advantages: it is economical for storing and transporting fluid contents such as liquid foods, chemicals, etc. It can be wrapped in a lightweight and secure bag structure. When the contents are used, the bag v1i can be easily positioned within the reusable outer container, preferably by simply securing the two parts of the outer container, with the bag structure being between the two parts. captured and the probe inserted into the bag.

This probe penetrates the bag and seals it. Thereafter, when the outer container is crushed, the pressure thereby exerted on the bag structure forces the contents out of the first one-way check valve. When the pressure is released, it passes through the second one-way check valve.
As a result of air being forced between the resilient outer container and the outside of the bag structure, the resilient outer container resiliently returns to its normal shape. When the pressure reversed, the one-way check valve of tlfJl was automatically sealed, thus sealing the contents of the bag structure.
Keep free of contamination. There is no need to remove the cap or the like to use this dispensing structure. Resilient outer containers can be made of more expensive decorative materials. That is 1
This is because a single resilient outer container can be used over a long period of time with many less expensive bag constructions.

Only the preferred form of the details of this dispensing construction have been illustrated and described, including materials other than those described herein, means for joining the two, components of the resilient outer container, and one-way check valves other than the preferred flap valve; The invention may also work with shapes other than cylindrical. It is therefore intended that the appended claims cover those modifications of the invention that would readily occur to those skilled in the art.

[Brief explanation of the drawing]

FIG. 1 is an axially exploded view of the storage and dispensing structure of the present invention, specifically showing the two-component outer container relative to the inner bag. Figure 2 is a cross-sectional view when the structure shown in Figures Ij & 1 is assembled, Figure 3 is a partial cross-sectional view of the one-way check valve in Figure 2 taken along cutting line 3-3, and Figure 4 is an enlarged partial cross-section. The figure shows the relationship of the three main parts of the invention. [Explanation of main symbols] 10: Bag 20: Cap part 25. 36: One-way valve 26: Outlet channel 30: Engraving of drawing of main body part of container (no change in content) (Voluntary) November 2, 1980 Director General of the Patent Office Shiga U-dono 1, Display of the case Sho 59-162982 2, Invention title distribution device 3, Person making the amendment Relationship with the case Patent applicant Name Ball Dee, Kuveevich 4, Agent 5, Date of amendment order Showa date (voluntary) 6, Subject of amendment (1) Engraving of the entire specification (however, no changes have been made to the contents) (2) Clear IF of all drawings (however, there are no changes to the contents) (3) Letter of appointment and translation 7, contents of amendments

Claims (8)

[Claims] (1) A flexible bag structure that accommodates a fluid substance,
a resilient outer container shaped to enclose the bag structure;
The outer container defines a dispensing channel that communicates with the exterior of the outer container at one end and with the interior of the bag structure at the other end, and further includes a dispensing channel disposed within the channel and communicating with the interior of the bag structure. a first one-way check valve oriented to permit flow of fluid from the exterior of the resilient container to the volume defined between the bag structure and the resilient container; and a second one-way check valve arranged to allow flow. (2) In the device described in claim (1),
Apparatus wherein the resilient outer container comprises a body portion, a cap portion, and means for securing the cap portion to the body portion. (3) In the device described in claim (2),
A projecting annular ridge is defined adjacent one end of the bag structure along its periphery, and both the body portion and the cap portion engage opposing sides of the projecting annular ridge in their inner regions. an annular ridge portion of the bag structure when the cap portion is secured to the body portion of the resilient container; (4) In the device according to claim (2) or (3), the cap portion has a dispensing channel,
a conical projection concentric with the inner end of the dispensing channel, the conical projection being adapted to engage and seal an opening configured in the end of the bladder structure, thereby forming a conical projection; A device in which a protrusion enters the bag structure to seal the bag structure, thus allowing the dispensing channel to communicate with the interior of the bag structure. (5) In the device described in claims (1) to (4), at least one check valve is a flapper valve. (6) In a method of dispensing a flowable substance from a collapsible container, the elastic outer container and the bag structure containing the flowable substance are stretched to reduce the enclosed volume so that the ambient pressure on the flowable substance is lowered. generating a high pressure and passing the flowable substance under pressure through a dispensing channel communicating from the interior of the bag structure to the exterior of the dispensing device, and activating a first one-way check valve in the dispensing channel; opening to allow flowable material to flow to the outside of the dispensing device, releasing the resilient container to allow the internal pressure to drop below ambient pressure, and as a result of the pressure reversal, said first one-way check The valve is closed and a second valve is connected between the exterior of the resilient container and the volume defined between the interior of the resilient container and the bag structure.
When, on the other hand, the check valve is opened, air flows into the volume thus constituted, and the container returns to its unstressed shape.
A method comprising the steps of substantially equalizing the internal pressure of a resilient container and the ambient pressure. (7) In the method described in claim (6),
A method in which at least one one-way check valve is a flapper valve. (8) In the method described in claim (6),
The bag structure is removably secured within the resilient structure by a removable cap so that the bag structure can be emptied and removed and a full bag structure placed in position. Method.