The device (1) consists of a second connection piece (4), which can be welded via its flange (41) onto an aseptically closed tubular bag (2). A first connection piece (33) can be screwed into the second connection piece (4) and is provided at the end with opening means (34). The first connection pie
The device (1) consists of a second connection piece (4), which can be welded via its flange (41) onto an aseptically closed tubular bag (2). A first connection piece (33) can be screwed into the second connection piece (4) and is provided at the end with opening means (34). The first connection piece (33) forms the intake piece of a metering pump (3). Securing means (5) hold the metering pump (3) in the correct position relative to the second connection piece (4) before the first use, and further means hold the metering pump (3) in the correct position relative to the second connection piece (4) in the use position.
대표청구항▼
1. A device (1) for the metered dispensing of a fluid from a tubular bag (2), characterized in that the device (1) is a metering pump (3), a suction side of which is provided with a first connection piece (33) comprising external thread (36), an end of which is provided with at least one opening mea
1. A device (1) for the metered dispensing of a fluid from a tubular bag (2), characterized in that the device (1) is a metering pump (3), a suction side of which is provided with a first connection piece (33) comprising external thread (36), an end of which is provided with at least one opening means (34), and wherein the first connection piece (33) is connected in a threaded manner in a second connection piece (4) comprising internal thread and a flange, which is welded to the tubular bag, such that the first connection piece (33) cuts open the tubular bag (2) by the metering pump (3) being twisted relative to the second connection piece (4), wherein securing means (5) ensure that a correct position of the first connection piece (33) relative to the second connection piece (4) is maintained before first use, and wherein the securing means (5) are formed by a protrusion (54) in an entry area of the external thread of the first connection piece and a detent recess (55) on the internal thread (44) of the second connection piece (4), so that the cutting and/or perforating teeth (35) are situated completely within the second connection piece (4) before the first use of the opening means (34). 2. The device according to claim 1, characterized in that the metering pump (3) is a disposable pump made from plastic. 3. The device according to claim 2, characterized in that the metering pump (3) is a rotary pump. 4. The device according to claim 1, characterized in that a tamper-proof band (51) serving as the securing means (5) is integrally formed via predetermined breaking point bridges on a lower edge of the second connection piece (4), said tamper-proof band allowing the second connection piece (4) to be twisted relative to the first connection piece (33) only after said tamper-proof band has been removed. 5. The device according to claim 1, characterized in that the second connection piece (4) has a conical connecting wall (45) from the flange (41) towards the internal thread (44) of said second connection piece (4). 6. The device according to claim 5, characterized in that the opening means (34) lie completely in a conical region of the connecting wall (45) in a mounted state before first use. 7. The device according to claim 1, characterized in that at least one detent rib (53) is integrally formed on a pump housing (30) adjacent to the first connection piece (33) on an inlet side of the metering pump (3) and at least one detent recess (55) is formed on an upper edge of the second connection piece (4), in which recess the at least one detent rib (53) engages if the metering pump (3) comprising the first connection piece (33) is screwed completely into the second connection piece (4). 8. The device according to claim 7, characterized in that the second connection piece (4) has a collar (47) at an end thereof remote from the flange (41) and that a detent notch (56) is formed between two detent ramps (57) that are integrally formed on the collar and extend in opposite directions. 9. The device according to claim 1, characterized in that a first sealing lip or sealing bead (46) disposed on an inner face of connecting tube section (43) is integrally formed on the second connection piece (4) in a region in proximity of the flange and, while closely contacting an outside of the first connection piece (33), seals said first connection piece from the second connection piece (4). 10. The device according to claim 1, characterized in that a second sealing lip configured as a sealing annular wall (49) and extending around a clear opening of the second connection piece (4) is integrally formed on said second connection piece (4) at a flange-free end, said sealing annular wall bearing against a pump housing (30) when the second connection piece is completely screwed onto the first connection piece. 11. The device according to claim 10, characterized in that the pump housing (30), which extends around the first connection piece (33) on a suction side comprises an inclined sealing ramp (38), the sealing annular wall (49) bearing against the sealing ramp (38) when the first connection piece is completely screwed into the second connection piece. 12. The device according to claim 1, characterized in that a plurality of cutting and/or perforating teeth (35) serving as the opening means (34) are integrally formed on the first connection piece (33). 13. The device according to claim 8, characterized in that ribs (48) extending axially are integrally formed on the second connection piece between the flange (41) and the collar (47). 14. The device according to claim 13, characterized in that the ribs (48) protrude outwardly up to maximally an outer edge of the collar (47). 15. A device (1) for the metered dispensing of a fluid from a tubular bag (2), characterized in that the device (1) is a metering pump (3), a suction side of which is provided with a first connection piece (33) comprising external thread (36), an end of which is provided with at least one opening means (34), and wherein the first connection piece (33) is connected in a threaded manner in a second connection piece (4) comprising internal thread and a flange, which is welded to the tubular bag, such that the first connection piece (33) cuts open the tubular bag (2) by the metering pump (3) being twisted relative to the second connection piece (4), wherein at least one detent rib (53) is integrally formed on a pump housing (30) adjacent to the first connection piece (33) on an inlet side of the metering pump (3) and at least one detent recess (55) is formed on an upper edge of the second connection piece (4), in which recess the at least one detent rib (53) engages if the metering pump (3) comprising the first connection piece (33) is screwed completely into the second connection piece (4). 16. The device according to claim 15, characterized in that the second connection piece (4) has a collar (47) at an end thereof remote from the flange (41) and that a detent notch (56) is formed between two detent ramps (57) that are integrally formed on the collar and extend in opposite directions. 17. A device (1) for the metered dispensing of a fluid from a tubular bag (2), characterized in that the device (1) is a metering pump (3), a suction side of which is provided with a first connection piece (33) comprising external thread (36), an end of which is provided with at least one opening means (34), and wherein the first connection piece (33) is connected in a threaded manner in a second connection piece (4) comprising internal thread and a flange, which is welded to the tubular bag, such that the first connection piece (33) cuts open the tubular bag (2) by the metering pump (3) being twisted relative to the second connection piece (4), wherein a second sealing lip configured as a sealing annular wall (49) and extending around a clear opening of the second connection piece (4) is integrally formed on said second connection piece (4) at a flange-free end, said sealing annular wall bearing against a pump housing (30) when the second connection piece is completely screwed onto the first connection piece. 18. The device according to claim 17, characterized in that the pump housing (30), which extends around the first connection piece (33) on a suction side comprises an inclined sealing ramp (38), the sealing annular wall (49) bearing against the sealing ramp (38) when the first connection piece is completely screwed into the second connection piece.
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이 특허에 인용된 특허 (9)
Josefsson Lars, Apparatus and method for emptying a container in an aseptic manner.
Compton, Stephen F.; McKamy, Daniel; Ramirez, Joseph M.; Harwood, Greg; Kuecker, William G., Interlocking dispensing system for dispensing a pumpable products.
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