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Ribbed And Apertured Fluoroplastic Support Sheet For A Filter Substrate And Method Of Making Same

A technology of sheet-like objects and supports, applied in chemical instruments and methods, separation methods, membrane filters, etc.

Active Publication Date: 2017-05-31
SWM LUXEMBOURG SARL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, none of the aforementioned patents disclose or suggest a 3-dimensional, patterned (ribbed), perforated fluoroplastic support sheet for a filter member, wherein a three-dimensional rib pattern is formed therein. The holes are previously formed in the sheet, and wherein the holes are formed in a predetermined pattern unaffected by the ribs of the 3-dimensional pattern in the fabric

Method used

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  • Ribbed And Apertured Fluoroplastic Support Sheet For A Filter Substrate And Method Of Making Same
  • Ribbed And Apertured Fluoroplastic Support Sheet For A Filter Substrate And Method Of Making Same
  • Ribbed And Apertured Fluoroplastic Support Sheet For A Filter Substrate And Method Of Making Same

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Embodiment Construction

[0027] Holes punched through its entire thickness referred to throughout this application including the claims "in a predetermined pattern unaffected by the structure of the support sheet" means that the support sheet is not embossed or patterned in Others are provided with cutouts or weakened areas intended to constitute areas where holes are created or formed. The predetermined pattern of holes of the present invention may very well be set, selected or determined by the ribbed sheet, but the structure of the ribbed sheet is not responsible for providing or establishing the predetermined pattern of holes. In a preferred embodiment, the predetermined pattern of holes is provided by a predetermined pattern of punching members of a punching press for producing holes in the ribbed sheet.

[0028] References throughout this application to "filter media" or "filter substrate" are components of the filter member of the present invention which may have any desired configuration and c...

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Abstract

A filter support sheet extruded from a fluoroplastic material includes a base section having spaced-apart ribs extending outwardly from at least one surface thereof. Segments between spaced-apart ribs provide flow channels and apertures are punched through the sheet in a predetermined pattern unaffected by the structure of the support sheet. A method includes the steps of: (1) extruding a thermoplastic, fluoroplastic material to form of a sheet; (2) passing the sheet through a nip region provided by opposed rollers; at least one having an outer surface with counter-sunk grooves. Counter-sunk grooves in one roller are aligned with an outer surface or counter-sunk grooves of the other roller in the nip region to form a ribbed sheet having ribs upstanding from at least one surface of said sheet; (3) setting the ribbed sheet and (4) punching apertures through the ribbed sheet in a predetermined pattern.

Description

[0001] Cross References to Related Applications [0002] This international application claims benefit under 35 U.S.C. §119(e) to U.S. Patent Application Serial No. 62 / 033,683, filed August 06, 2014, entitled Ribbed and Porous Fluoroplastics for Filter Substrates The disclosure of this patent application is hereby incorporated by reference. technical field [0003] The present invention relates to a ribbed and perforated support sheet extruded from a thermoplastic fluoroplastic material for filter substrates, and a method for its preparation. Background technique [0004] Filter elements employing filter media supported on each side by an embossed and perforated support sheet are known in the art. These filter members are commonly used in filter cartridges to filter particulate material in a variety of cleaning operations. [0005] The filter member for cleaning semiconductor components preferably comprises a support sheet made of fluoroplastic material and most preferably...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F1/02B29C47/00B29C47/32B29C47/14B29K27/12B29K27/18B29C48/08B29C48/305B29C48/35
CPCB29K2027/12B29K2027/18B26F1/02B01D46/10B01D2265/06B01D2275/105B29C48/07B29C48/12B29C48/13B29C48/0022B29C48/08B29C48/0011B29C48/35B29C48/00B29C48/305B29C43/222
Inventor 安德鲁·G·普拉特乔·R·特纳
Owner SWM LUXEMBOURG SARL
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