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Liquid pump

A liquid pump and liquid technology, applied in the field of liquid pumps, can solve the problems of inaccurate liquid dosing and other problems, and achieve the effects of simplified cleaning, improved precision, and long expected service life

Inactive Publication Date: 2012-07-18
CAPSUGEL BELGIUM NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can cause problems, especially when cleaning the pump, and also imprecise dosing of liquid when the seals are worn

Method used

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  • Liquid pump
  • Liquid pump
  • Liquid pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] figure 1 The body 2 of the pump according to the invention is shown in . The body 2 is formed as a one-piece structure of polyethylene terephthalate (PET) and a plurality of cylinders 4 are defined therein. exist figure 1 Nine cylinders 4 are shown in , but it will be obvious to a person skilled in the art that more or fewer cylinders 4 may be formed in the body 2 .

[0054] Each cylinder comprises a ceramic liner 6 consisting of a sleeve formed from a zirconia ceramic material with added magnesia (available from Friatec AG, Mannheim, Germany). The liner 6 is held in the cylinder 4 by a lock switch (not shown).

[0055] The closed end of the cylinder 4 is formed by an end plate (not shown) releasably coupled with the body 2 . Thus, the end plate can be removed for cleaning the pump.

[0056] This body 2 also comprises a plurality of dispensing nozzles 8 for dispensing liquid from the cylinder 4 of the pump into the corresponding containers.

[0057] The dispensing...

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PUM

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Abstract

A liquid pump for dispensing a liquid is provided. The pump comprises a body which defines a plurality of cylinders therein, each cylinder having located therein a respective piston, wherein each cylinder and respective piston is shaped and configured such that the fit between them substantially prevents leakage of the liquid to be dispensed. Such a liquid pump may be used to fill pharmaceutical dosage forms, such as capsules, with liquid pharmaceutical compositions.

Description

technical field [0001] The present invention relates to a liquid pump for dispensing liquid into one or more containers. More specifically, the present invention relates to liquid pumps comprising a plurality of cylinders housed in a body. Background technique [0002] Known liquid dispensing pumps comprise at least one (and usually several) seals between each cylinder and the piston. This can cause problems, especially when cleaning the pump, and also imprecise dosing of liquid when the seals wear out. [0003] Furthermore, it is known to provide pumps comprising a plurality of cylinders formed in a single body. However, these known pumps include at least one seal (and usually a plurality of seals) between each cylinder and its corresponding piston in order to minimize leakage. [0004] The problem of cleaning the pump becomes important when the pump is run for relatively short periods of time dispensing different liquids and needs to be cleaned between each run. Conte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B1/16F04B53/10F04B53/14
CPCF04B53/10F04B53/147F05C2203/08F04B1/16
Inventor G·范古伦S·J·万奎科恩波尔奈
Owner CAPSUGEL BELGIUM NV