Disposable polymer-structured filtering kit

A technology of filter device and filter funnel, which is applied in the direction of filter separation, gravity filter, fixed filter element filter, etc., can solve the problem that cleaning glass instruments takes a lot of time and so on.

Inactive Publication Date: 2012-11-14
蔡健健 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, cleaning glasswar

Method used

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  • Disposable polymer-structured filtering kit
  • Disposable polymer-structured filtering kit
  • Disposable polymer-structured filtering kit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The invention relates to a filter device of disposable polymer material. The device, which will be described in detail, consists of three parts: a disposable filter funnel, a non-disposable interface, and a glass receiving bottle.

[0038] figure 1 A single-use polymeric filtration device 100 is shown. The filtration unit 100 consists of a disposable filter funnel 110 , a glass vacuum port 112 and a non-disposable round bottom glass flask 114 .

[0039] The funnel 110 has a long tube 115, and the bottom end of the long tube 115 is a liquid outlet 116. Long tube 115 is long enough that its outlet port 116 can pass through glass vacuum port 112 into round bottom glass flask 114 . The liquid outlet 116 enters the flask 114 to prevent the glass vacuum interface 112 from being contaminated by the filtrate when vacuuming. A polymer filter 119 is placed at the bottom of the cylinder 118 of the funnel 110 to keep the solid sample in the funnel. The upper end 117 of the lon...

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PUM

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Abstract

The disposable polymer-structured filtering kit (100) includes a disposable, polymer-structured filtering funnel (110) with a stem (115) having a distal tip (116). Preferably, a polymer fritted filter disc (119) is positioned in the funnel (110), providing filtering for liquids passing therethrough. The kit (100) preferably also includes a glass vacuum take-off adapter (112) having a port (120) for connecting to a vacuum source for providing negative pressure. The adapter (112) securely and snuggly receives the funnel (110) and maintains position of the distal tip (116) thereof with a flow discharge end thereof positioned below the port (120), thus preventing contaminants from entering the adapter (112). A reusable, glass round bottle flask (114) or a disposable vial (214) receives the adapter (112) and the stem (115) of the funnel (110). The funnel (110) and fritted disc (119) are formed from disposable materials, thus removing the necessity of cleaning them in following use. The glass vacuum take-off adapter is not soiled after use, and can be used repeatedly without cleaning.

Description

technical field [0001] This invention concerns laboratory glassware. It is mainly to filter a small amount of solid-liquid samples with a disposable polymer material vacuum filter device. Background technique [0002] Vacuum filtration is a commonly used filtration method in chemical laboratories. When a mixture of solid and liquid passes through a porous interface, the solid remains on the interface and the liquid passes through the interface. Typically, a vacuum filtration unit used to filter small samples consists of a filter funnel, a vacuum port, and a receiving bottle. [0003] In the vacuum filtration device composed of the above three parts, the vacuum interface of a device is connected to the filter funnel. The device consists of a glass filter funnel and a glass filtrate receiving bottle. This glass filter funnel itself has a vacuum nozzle for connecting to a vacuum source. The filter funnel is connected to the filtrate receiving bottle with a glass grinding m...

Claims

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Application Information

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IPC IPC(8): B01D29/00B01D29/085
CPCB01L3/56B01L2400/049B01L2300/0681B01D39/16B01D35/00B01D29/01B01D29/085
Inventor 蔡健健刘晓皋
Owner 蔡健健
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