DE10155786A1 - Plastic container for serum has tube with sealed bottom end in its top, into which temperature sensor and RF transponder can be fitted - Google Patents

Abstract

The plastic container (10) has a threaded filling inlet (18) in its top which can be sealed with a screw cap. A stacking ring (12) runs around the top and there is also a tube (26) with a sealed bottom end in the top, into which a temperature sensor and/or RF transponder can be fitted. Independent claims are included for: (a) a blow mold for making the container; and (b) a method for making the container.

Description

The invention relates to a container made of thermoplastic, with at least a filling and removal opening in the top shelf or container lid and with one upper and a lower circumferential stacking ring. Such a plastic container is known from WO 99/26852.

It is an object of the invention to constructively design the known multi-way container to further design that it is suitable for the use or the use of sensitive Special filling goods is suitable.

This object is achieved with the characterizing features of Claim 1 solved in that a second opening is provided in which is an insert that is closed on the inside and that is inserted a bit into the The inside of the barrel protrudes and gas-tight from above with a screw-on screw cap. and can be closed liquid-tight. The insert is closed to the inside Inclusion of a measuring device or probe provided.

For the transport and storage of an expensive and temperature sensitive (sensitive) liquid, a special 10 liter container is provided, in which the second container opening is provided with the inner insert. The use points in essentially have a cylindrical or tubular shape.

The tubular insert protrudes by at least 10 cm or until about the beginning of the cylindrical barrel area into the container and dips when filled normally Containers (filled to approx. 90-95%) by at least 50 mm in the filled liquid contents on. The liquid filling material can e.g. B. be a medical fluid (e.g. a serum) which must not be raised above a certain temperature (e.g. 24 ° C), because otherwise it disintegrates and becomes unusable.

A particular embodiment of the reusable container according to the invention has an essentially spherical round container shape with a filling volume of 10 liters on, the container height being less than or equal to the largest container diameter is formed (height / diameter ratio preferably about 0.87).  

A preferred way of manufacturing the container is that in Injection molding process separately prefabricated use with opened blow mold halves an expanding mandrel and with the blow mold halves closed during the Blow molding process molded into and with the inflated container is welded.

In the subclaims there are further advantageous design variants of the present invention included.

Due to the structural design of the container and the advantages achieved with it it is possible that the container according to the invention in particular also for comparative wise expensive liquids such. B. electrolyte solutions for the electronics industry can be set. The probe used can, for. B. be a temperature measuring device, which continuously measures and records the temperature of the product and records it over one with inserted RF transponders wirelessly to a record or read / write device or an optical / acoustic warning device (e.g. high-frequency Transponder technology).

The new multi-way container is further characterized by the following features and advantages, whereby:

• - The upper edge at the upper end of the connecting web of the upper stack ring in cross section is solid, of which the flange ring protrudes upwards in the axial direction,
• - The connecting web of the upper stacking ring is slightly obliquely conical to the outside has expanded
• - The container body is fully cylindrical in the middle over a short piece and above and below to the connection point of the upper and to the connection point of the lower stacking ring is slightly arched or tapered,
• - The height (= axial length) of the curved intake area of the container wall from the connection point of the upper or lower stacking ring or the respective one Connecting web up to the beginning of the fully cylindrical area of the container wall is approx. 110 mm
• - The top shelf is essentially flat or slightly curved and in its flat edge area two opposite gas-tight containers  Has openings,
• - The essentially flat or slightly curved (= cambered) upper floor over an obliquely conical or arched ring piece on the Connection point of the upper stacking ring to the tapered area of the lower tank wall is connected,
• - the sub-floor is slightly sloping or gently sloping to one side, that a trough (= sink) is formed as a pump sump below a bung is
• - In the underbody in the area of the pump sump at least three slightly inwards upright indentations as centering for the lower end of a pump tube (e.g. a Micromatic filling and emptying suction pipe),
• - The container made of high-purity plastic material HD-PE without the addition of Stabilizers, plasticizers or the like,
• - The container wall is multi-layered and from at least two or several different plastic materials (CoExtrusion), at least the inner layer is made of high-purity plastic,
• - The container has a maximum capacity of approx. 30, 25, 20, 15 or 10 liters and with at least two handles in the top stacking ring is equipped so that the container is easily manipulated or portable, and
• - The container can be used multiple times and is suitable as a reusable container.

In a single interchangeable blow mold according to the invention, by inserting ring pieces of different heights in the fully cylindrical region of the container body containers of different heights (with the same diameter, top and bottom) Capacity of e.g. B. 10 l, 15 l, 20 l, 25 l or 30 l can be produced.

The present invention is illustrated below with reference to the drawings presented exemplary embodiments explained and described. Show it:

Fig. 1 is a 20 l inventive bung container in perspective view,

Fig. 2 an inventive bung 10 l container in side view;

Fig. 3 is a reusable sheet pile container in partial section side view

Fig. 4 is a partial sectional plan view from above of the multipath Bung-hole container according to FIG. 3.

In Fig. 1, a 20-liter multi-way container 10 made of thermoplastic (HD-PE) is shown as an exemplary embodiment according to the invention. At the upper edge of the container, an integral circumferential stacking ring 12 (carrying and transport ring), integrally connected to the container body, with two grip openings 14 diametrically opposed therein is attached. A corresponding base ring 16 is formed on the lower edge of the container body. In the top floor 20 , two opposing container openings 18 , 24 can be seen, which are closed with bung plugs 22 or screw closures 28 . A comparatively longer piece of the cylindrical container wall 30 is formed in the center of the container.

A corresponding 10 liter container can be seen in the side view in FIG. 2. Here, the center piece of the cylindrical container wall 30 is comparatively shorter.

Fig. 3 shows the container 10 according to the invention with fixed inserted cylindrical insert body 26 (= Chemlogger) for use of a temperature measuring probe and / or an RF transponder. It is provided here that the tubular insert 26 projects into the container 10 by approximately 100 mm or up to approximately the beginning of the cylindrical barrel region 30 and, in the case of a normally filled container, dips into the filled liquid filling material by at least 50 mm.

Fig. 4 left a 2-inch bung opening 18 with internal thread and the right molded into the second container opening 24 large diameter insert body 26 shows (upstanding neck inner diameter about 84 mm).

The largest outside diameter of a 10 liter container is approx. 300 mm, the height approx. 260 mm (height / diameter ratio = 0.87), the largest outside diameter of a 30 liter container is approx. 380 mm and the height is approx. 400 mm (height / diameter Ratio = 1.05 # Honeywell version).  

References list

10

Plastic container

12

top stacking ring

14

grip opening

16

lower stacking ring

18

bunghole

20

topsoil

22

bung plug

24

second opening

26

cylindrical insert

28

screw

30

cylindrical container wall

32

Claims (9)

1. Plastic container ( 10 ) with at least one filling and removal opening ( 18 ) in the top floor ( 20 ), which can be closed by means of a screw closure ( 22 ), and with an upper and a lower circumferential stacking ring ( 12 , 16 ), characterized that a second opening ( 24 ) is provided, into which an inwardly closed insert ( 26 ) is inserted, which protrudes a bit into the interior of the container and can be closed gas-tight and liquid-tight from above with a screw closure ( 28 ). 2. Container according to claim 1, characterized in that the insert ( 26 ) has a cylindrical or tubular shape. 3. Container according to claim 1 or 2, characterized in that the tubular insert ( 26 ) protrudes by about 100 mm or up to about the beginning of the cylindrical barrel region ( 30 ) in the container ( 10 ) and at least filled with a normally filled container Dipped 50 mm into the filled liquid filling material. 4. Container according to claim 1, 2 or 3, characterized in that the inwardly closed insert ( 26 ) is provided for receiving a measuring device or measuring probe. 5. Container according to claim 1, 2, 3 or 4, marked by an essentially spherical, round container shape with a filling volume of approx. 10 Liters, the container height being less than or equal to the largest container diameter is formed (height / diameter ratio preferably about 0.87).   6. A container according to claim 1, 2, 3, 4 or 5, characterized in that the insert ( 26 ) is formed so long that it dips approximately with its lower half in the contents during normal filling of the container. 7. Container according to one of the preceding claims 1 to 6, characterized in that the insert ( 26 ) is formed so long that with normal filling of a 10 liter container up to about the middle or half of the container height with its lower half immersed in the product. 8. Blow mold for producing a container according to one of the preceding claims 1 to 7, characterized in that the vertically divided blow mold consists of three parts (with horizontal parting planes), the middle part (ring insert) for the cylindrical container wall ( 30 ) so interchangeable is designed that different containers with filling volumes of 10, 15, 20, 25 or 30 liters can be produced from an interchangeable blow mold using different ring sections with the same head and bottom pieces. 9. A method for producing a container according to any one of the preceding claims 1 to 7, characterized in that the insert ( 26 ) separately prefabricated in the injection molding process is placed on an expanding mandrel when the blow mold halves are open and molded into the inflated container during the blow molding process during the blow molding process and with this is welded.