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Filter assembly

A filter assembly and filter technology, applied in membrane filters, dispersed particle filtration, chemical instruments and methods, etc., can solve the problems of increasing filter material costs and manufacturing costs, achieve sufficient cross-network stability, reduce material cost, effect of eliminating spacer structure

Inactive Publication Date: 2007-01-17
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a support structure increases the material cost and manufacturing cost of the filter

Method used

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Embodiment Construction

[0028] Referring now to the drawings, wherein like reference numerals indicate like or corresponding parts throughout the several views, FIGS. 1-5 show a reusable, self-spaced, pleated filter 8 A filter frame 2 comprising a base body 4 and an optional cover 6 , the filter 6 being suitably sized and configured to fit into the base body 4 . Alternatively, the functions of the base body 4 and the cover 6 can also be reversed, so that the filter 8 is arranged in the cover 6 and the base body 4 is closed by the cover 6 . The filter frame 2 has a substantially flat rectangular configuration and is especially suitable for use in air ducts or boilers of residential air-conditioning systems.

[0029] Filter 8 generally includes filter media 10 having a plurality of pleats 12 . reference below Figure 6-9 Filter 8 will be described more fully.

[0030] The base body 4 and the cover 6 respectively comprise a peripheral structure 4a, 6a having respective first 16, 18 and second 20, 22 ...

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Abstract

A filter assembly includes a reusable filter frame and a replaceable, pleated, reversibly expandable, self-spacing filter removably arranged in the frame. The self-spacing pleated filter expands uniformly with equal pleat spacing to allow the filter to be easily installed in the reusable filter frame without the aid of a secondary spacing structure. When the filter is expanded to the length of the filter frame, the filter is under tension, thereby allowing the length of the filter to be readily adjusted to match the length of the frame and allowing the pleats to be aligned with corresponding ribs provided in the frame.

Description

technical field [0001] The present invention relates generally to filters, and more particularly to a removable filter element inserted into a reusable frame. Background technique [0002] Many conventional residential heating and cooling systems include single-use filters. These filters include frames, fibrous filter materials, screens that support the filter materials, and the like. During use, these filters become dirty or clogged and must be replaced. This is done by replacing the entire filter assembly with a new filter and discarding the old filter. Depending on the purpose of the filter, it may need to be replaced several times a year. Such filters are unnecessary waste and cost because the frame and mesh are discarded with the assembly even if the filter material is no longer functional. Also, because these filters are quite bulky, they are often purchased as needed rather than keeping a larger supply in stock. Since it is not always convenient to purchase new f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/52B01D46/00B01D46/10
CPCB01D46/10B01D46/008B01D46/521B01D2265/024B01D46/0016Y10S55/31B01D46/88B01D46/52
Inventor 詹姆斯·O·库博卡瓦
Owner 3M INNOVATIVE PROPERTIES CO
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