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1. WO2008070699 - METHOD AND APPARATUS FOR WINDING A FILTER ELEMENT

Publication Number WO/2008/070699
Publication Date 12.06.2008
International Application No. PCT/US2007/086456
International Filing Date 05.12.2007
IPC
B01D 29/48 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/-B01D27/170;   Filtering elements therefor
44Edge filtering elements, i.e. using contiguous impervious surfaces
48of spirally or helically wound bodies
CPC
B01D 2265/06
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2265Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
06Details of supporting structures for filtering material, e.g. cores
B01D 25/001
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
25Filters formed by clamping together several filtering elements or parts of such elements
001Making filtering elements
B01D 25/24
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
25Filters formed by clamping together several filtering elements or parts of such elements
22Cell-type filters
24Cell-type roll filters
B01D 46/0001
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters ; , i.e. particle separators; or filtering processes specially modified for separating dispersed particles from gases or vapours
0001Making filtering elements
B01D 46/527
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters ; , i.e. particle separators; or filtering processes specially modified for separating dispersed particles from gases or vapours
52Particle separators, e.g. dust precipitators, using filters embodying folded ; corrugated or wound sheet; material
521using folded, pleated material
525which comprises flutes
527in wound arrangement
Applicants
  • BALDWIN FILTERS, INC. [US]/[US] (AllExceptUS)
  • MERRITT, Steven J. [US]/[US] (UsOnly)
  • SWANSON, Kyle [US]/[US] (UsOnly)
Inventors
  • MERRITT, Steven J.
  • SWANSON, Kyle
Agents
  • CROWE, Lawrence E.
Priority Data
11/634,64706.12.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR WINDING A FILTER ELEMENT
(FR) PROCÉDÉ ET APPAREIL POUR ENROULER UN ÉLÉMENT DE FILTRATION
Abstract
(EN)
A filter apparatus and method utilize a filter element, defining a longitudinal axis and an axial end thereof, and having a central winding structure and a length of fluted filter material wound about the winding structure with the flutes of the media oriented to provide for filtration of fluid passing axially through the filter element. An edge of filter media defines the axial end of the filter element when the media is wound about the winding structure. An axial end of the winding structure is disposed adjacent the axial end of the filter element. A winding feature extends substantially axially outward from the axial end of the winding structure to a distal end of the winding feature. The filter media is wrapped about the winding structure such that the axial end of the filter element is disposed substantially flush with the distal end of the winding feature.
(FR)
Appareil de filtration et procédé utilisant un élément de filtration, définissant un axe longitudinal et une extrémité axiale de celui-ci, et ayant une structure d'enroulement centrale ainsi qu'une longueur de matériau de filtration cannelé, enroulé autour de la structure d'enroulement, les cannelures du support étant orientées pour fournir une filtration du fluide qui passe axialement à travers l'élément de filtration. Un bord du support filtrant définit l'extrémité axiale de l'élément de filtration lorsque le support est enroulé autour de la structure d'enroulement. Une extrémité axiale de la structure d'enroulement est disposée de manière adjacente à l'extrémité axiale de l'élément de filtration. Un élément d'enroulement s'étend sensiblement axialement vers l'extérieur à partir de l'extrémité axiale de la structure d'enroulement, vers une extrémité distale de l'élément d'enroulement. Le support filtrant est enroulé autour de la structure d'enroulement de manière à ce que l'extrémité axiale de l'élément de filtration soit disposée sensiblement au même niveau que l'extrémité distale de l'élément d'enroulement.
Latest bibliographic data on file with the International Bureau