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Fluid filter with open-end flow, replaceable cartridge

A fluid filter, fluid technology, applied in the direction of fixed filter element filter, membrane filter, filtration separation, etc., can solve the problem that the shell cannot accept the filter and so on

Inactive Publication Date: 2008-11-05
CUMMINS FILTRATION IP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Related to the acceptability of replaceable filter cartridges is that the housing cannot accept spin-fit type filters that are part of a disposable single-use system

Method used

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  • Fluid filter with open-end flow, replaceable cartridge
  • Fluid filter with open-end flow, replaceable cartridge
  • Fluid filter with open-end flow, replaceable cartridge

Examples

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Embodiment Construction

[0022] For the purpose of facilitating an understanding of the principles of the invention, reference will now be made to and specific language will be used to describe the embodiments shown in the drawings. However, it should be understood that this is not intended to limit the scope of the present invention, and those skilled in the art will usually make relevant changes and further modifications to the device shown in the present invention, and carry out expected further applications of the principles of the invention, all of which are described above. fall within the scope of the present invention.

[0023] refer to Figure 1-5 , shows a fluid filter assembly 20 constructed and arranged for threaded connection to a fluid transfer mounting head (not shown). Fluid filter assembly 20 includes a unitary molded plastic housing 21 and a cooperating fluid filter cartridge 22 . Fluid filter cartridge 22 (see Figure 5 ) includes a generally cylindrical filter media element or f...

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Abstract

The present invention relates in general to a fluid filter incorporating a plastic shell and a replaceable fluid filter cartridge. More specifically, the present invention relates to configuring the shell so that it will only accept, in terms of proper functioning, a cooperatively-configured replaceable fluid filter cartridge. One of the emerging technologies in terms of fluid filter construction is the enlargement of the threaded connection interface between the molded plastic shell and the fluid-delivery head, accompanied by the elimination of the typical or traditional nutplate. In one embodiment of this design concept, the shell is molded out of plastic and the outer cylindrical surface of the shell adjacent the open end of the shell is externally threaded. This threaded surface of the shell is used to attach the shell, and in turn the fluid filter assembly, to the head. This style of shell is configured for use with a spin-on style of filtration system as part of a disposable fluid filter assembly. Some end users of the type of filtration systems described above enjoy the advantages gained from a replaceable fluid filter cartridge. Therefore, it would be an advance in the state of the art to configure the molded plastic shell, generally as described above, but configured to accept a replaceable fluid filter cartridge. Related to the acceptance of a replaceable cartridge is the inability of the shell to accept a spin-on style of filter as part of a disposable, single-use system. The fluid filter construction disclosed herein is directed to providing this capability by the design of a novel and unobvious fluid filter endplate with cooperative modifications to the upper exposed edge of the shell that defines the open end of the shell.

Description

technical field [0001] The present invention generally relates to fluid filters comprising a plastic housing and a replaceable fluid cartridge. More specifically, the present invention relates to the configuration of the housing so that it accepts only cooperatively configured replaceable fluid filter cartridges for proper function. Background technique [0002] An emerging technology in the field of fluid filter construction is the enlargement of the threaded interface between the molded plastic housing and the fluid transfer head while eliminating the typical or traditional screw cap. In one embodiment of the present design concept, the housing is cast from plastic and is threaded externally on the outer cylindrical surface of the housing adjacent the open end of the housing. This threaded surface of the housing is used to connect the housing and fluid filter assembly to the head in turn. The housing is configured for use as part of a disposable fluid filter assembly wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D35/28
CPCB01D35/30B01D2201/24B01D2201/4076B01D2201/295B01D2201/4046B01D29/21B01D29/96
Inventor I·C·巴奇K·C·索斯J·B·夏普
Owner CUMMINS FILTRATION IP INC
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