EP1945454A1 - Unité de cadre permettant de supporter un écran d'impression - Google Patents

Unité de cadre permettant de supporter un écran d'impression

Info

Publication number
EP1945454A1
EP1945454A1 EP06849384A EP06849384A EP1945454A1 EP 1945454 A1 EP1945454 A1 EP 1945454A1 EP 06849384 A EP06849384 A EP 06849384A EP 06849384 A EP06849384 A EP 06849384A EP 1945454 A1 EP1945454 A1 EP 1945454A1
Authority
EP
European Patent Office
Prior art keywords
frame
frame unit
engagement
printing screen
engagement element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06849384A
Other languages
German (de)
English (en)
Inventor
Michael Zahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ASM Assembly Systems Switzerland GmbH
Original Assignee
DEK International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DEK International GmbH filed Critical DEK International GmbH
Publication of EP1945454A1 publication Critical patent/EP1945454A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/36—Screens, Frames; Holders therefor flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • B41N1/248—Mechanical details, e.g. fixation holes, reinforcement or guiding means; Perforation lines; Ink holding means; Visually or otherwise detectable marking means; Stencil units
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/08—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by frames or like apparatus

Definitions

  • the present invention relates to a frame unit for supporting a printing screen, often alternatively referred to as a stencil or mask, in a tensioned state, such as to allow for the screen printing of workpieces.
  • Such printing screens typically comprise a thin, stiff metal sheet, for example, of stainless steel or brass, which includes a plurality of printing apertures which define a pattern for the printing of a printing medium, typically solder paste, onto workpieces, such as electronic substrates, for example, circuit boards and components.
  • a printing medium typically solder paste
  • printing screens have been permanently mounted in frame units, as rigid, rectangular mounting frames, by a flexible, perforate sheet, typically a woven mesh of polypropylene or stainless steel strands, which acts to tension the printing screen.
  • This mounting process which involves stretching the woven mesh, gluing both the frame unit and the edges of the printing screen to the mesh and cutting away the mesh from the main, central body of the printing screen, is, however, time consuming, and the resulting assembly is prone to failure, owing to separation of the printing screen from the mesh and also damage of the mesh.
  • the frame unit includes tensioning mechanisms which engage respective ones of the opposite edges of the printing screen to tension the same. Examples of these systems are disclosed in WO-A-1993/025061, WO-A-1997/003833 and WO-A-2005/046994.
  • the present invention provides a frame unit for supporting a printing screen in a tensioned state
  • the frame unit comprises a frame which includes at least one frame member, the at least one frame member comprising: a supporting frame element which includes a plurality of catch elements; and at least one engagement element for engaging a fitted printing screen
  • the at least one engagement element is movably coupled to the supporting frame element such as to be movable in one, tensioning sense to tension a fitted printing screen and support the same in a tensioned state
  • the at least one engagement element including an engagement feature which, with movement of the at least one engagement element, is moved in relation to the catch elements and configured to engage the one of the catch elements corresponding in position to the tensioned state, such as thereby to lock the at least one engagement element thereagainst.
  • the at least one engagement element is movable in relation to the supporting frame element only in the tensioning sense.
  • the at least one engagement element is pivotally coupled to the supporting frame element.
  • the supporting frame element includes one of a pivot projection or a pivot recess extending along a length thereof and the at least one engagement element includes the other of a pivot recess or a pivot projection extending along a length thereof which engages the one of the pivot projection or the pivot recess of the supporting frame element.
  • the supporting frame element includes the one of the pivot projection or the pivot recess at an inner edge thereof.
  • the pivot projection and the pivot recess are configured to allow for radial insertion of the pivot projection into the pivot recess.
  • the supporting frame element includes a catch section which includes the catch elements.
  • the catch section includes a wall element which includes the catch elements.
  • the wall element is resiliently deformable such as to enable the engagement feature of the at least one engagement element to be slideable over the catch elements in the tensioning sense and lock against the one of the catch elements corresponding in position to the tensioned state.
  • the wall element is an arcuate element.
  • the catch section is disposed in opposed relation to the pivot of the supporting frame element and the at least one engagement element.
  • the catch elements each comprise a projection which includes a first, guide surface over which the at least one engagement element is slideable, and a second, catch surface which acts to lock the at least one engagement element thereagainst and prevent movement of the at least one engagement element in the opposite sense to the tensioning sense.
  • the at least one engagement element comprises a first, screen engagement member which is configured to engage a printing screen, and a second, locking member which is configured to engage the one of the catch elements corresponding in position to the tensioned state.
  • the screen engagement member comprises an arm which includes an engagement feature which in use engages the respective edge of the printing screen.
  • the locking member comprises an arm which includes an engagement feature which is configured to be slideable over the catch elements in the tensioning sense and lock against the one of the catch elements corresponding in position to the tensioned state.
  • the locking member is resiliently deformable such as to enable the engagement feature thereof to be slideable over the catch elements in the tensioning sense and lock against the one of the catch elements corresponding in position to the tensioned state.
  • the at least one engagement element includes a plurality of projections for engaging engagement apertures in a printing screen.
  • the plurality of projections define a comb structure.
  • the at least one frame member comprises an elongate member.
  • the frame is substantially rectangular in shape.
  • the frame includes a plurality of frame members.
  • the frame includes at least one pair of frame members disposed in opposed relation. In another embodiment the frame comprises first and second pairs of frame members each disposed in opposed relation.
  • the frame comprises first and second frame members which define adjacent sides of the frame.
  • the frame is a rigid frame prior to fitting a printing screen thereto.
  • the frame is a loose frame prior to fitting a printing screen thereto.
  • the respective ends of the frame members are connected by corner pieces.
  • the present invention also extends to the above-described frame unit in combination with a printing screen.
  • Figure 1 illustrates a perspective view of a frame unit in accordance with a preferred embodiment of the present invention
  • Figure 2 illustrates a vertical cross-sectional view (along section I-I) through one of the frame members of the frame unit of Figure 1, where illustrated with a printing screen mounted thereon in a tensioned state;
  • Figure 3 illustrates part of the cross-sectional view of Figure 2 in enlarged scale
  • Figure 4 illustrates the cross-sectional view of Figure 2, where the frame unit is in an inverted orient and ready to receive a printing screen
  • Figure 5 illustrates the cross-sectional view of Figure 4, where the frame unit has a printing screen located thereon in an untensioned state;
  • Figure 6 illustrates the cross-sectional view of Figure 4, where the frame unit is in the process of being operated upon to tension the printing screen;
  • Figure 7 illustrates the cross-sectional view of Figure 4, where the frame unit has been operated upon to tension the printing screen to a predetermined tensioned state
  • Figure 8 illustrates a corner section (region A in Figure 1) of a frame unit as a modification of the frame unit of Figure 1.
  • the frame unit 1 is configured to tension a printing screen 3 which, as illustrated in Figures 5 to 7, comprises a screen sheet 4, typically formed of a metal or plastic, which includes a pattern of apertures through which a printing medium is printed, and engagement members 5 at each of the edges of the screen sheet 4, which engagement members 5 each include an engagement recess 6 along the length thereof by which the printing screen 3 is tensioned.
  • a printing screen 3 which, as illustrated in Figures 5 to 7, comprises a screen sheet 4, typically formed of a metal or plastic, which includes a pattern of apertures through which a printing medium is printed, and engagement members 5 at each of the edges of the screen sheet 4, which engagement members 5 each include an engagement recess 6 along the length thereof by which the printing screen 3 is tensioned.
  • WO-A-2003/093012 discloses examples of such printing screens.
  • the frame unit 1 comprises first, second, third and fourth frame members 7a-d, in this embodiment elongate members, which are connected at the respective ends to define a frame, in this embodiment a rectangular frame.
  • the frame members 7a-d are connected by mitring and welding the ends of the frame members 7a-d. With this configuration, the frame members 7a-d together define a rigid frame. As illustrated in Figures 2 and 3, the frame members 7a-d each comprise a frame element 9, and at least one, in this embodiment a single engagement element 11 for engaging a respective edge of a printing screen 3 to support the same.
  • the engagement element 11 is pivotally coupled to the frame element 9, such as to be pivotable irreversibly only in one, tensioning sense, as represented by arrow X in Figure 2, which provides for tensioning of a printing screen 3, and lockable in one of a plurality of predetermined tensioning positions, which provide for tensioning of the printing screen 3 to one of a plurality of tensions.
  • each of the frame members 7a-d could comprise a plurality of engagement elements 11.
  • the provision of a plurality of engagement elements 11 for engagement with each edge of a printing screen 3 facilitates the application of a controlled tension across the length of each edge of the printing screen 3.
  • the provision of a plurality of engagement elements 11 for engagement with each edge of a printing screen 3 allows for each edge of the printing screen 3 to be tensioned with a predeterminable tension profile, for example, to a higher tension at the respective ends.
  • the engagement elements 11 of each frame member 7a-d could be juxtaposed in end-to-end relation.
  • the engagement elements 11 of each frame member 7a-d could be disposed in spaced relation.
  • Each of the frame elements 9 includes a main, elongate cavity 19 in which the respective engagement element 11 is disposed along the length thereof and which opens to a lower, mounting surface of the frame element 9, an inner, guide section 21 which defines a guide surface 23 over which an edge region of a printing screen 3 is tensioned, and an outer, catch section 25 to which the engagement element 11 is locked in one of the predetermined tensioning positions, as will be described in more detail hereinbelow.
  • the cavity 19 includes a pivot recess 27, in this embodiment an arcuate recess having a generally part-circular shape, which extends along the length of the cavity 19 at an inner edge thereof, to which the respective engagement element 11 is pivotally hinged.
  • the catch section 25 is a hollow body, which includes a wall element 31, here of arcuate section, which is disposed in opposed relation to the pivot recess 27, and includes a plurality of adjacent catch elements 35a- e, in the manner of ratchet teeth, which are configured irreversibly to engage the respective engagement element 11, such that the engagement element 11 is pivotable only in the one, tensioning sense, and lock the engagement element 11 in one of the predetermined tensioning positions corresponding to the position of the respective catch element 35a-e against which the engagement element 11 is located.
  • the catch elements 35a-e each comprise a projection which includes a first, inclined guide surface 37, which facilitates the sliding thereover of the engagement element 11 in the one, tensioning sense, and a second, catch surface 39, which acts to lock the engagement element 11 in the respective tensioning position by engagement with the same and prevent the movement of the engagement element 11 in the opposite sense.
  • the wall element 31, which includes the catch elements 35a-e, is sufficiently resilient as to be deformable, such as to allow the engagement element 11 to be slid over the catch elements 35a-e when pivoted in the one, tensioning sense.
  • the frame elements 9 are fabricated from an extrusion, here an aluminum extrusion, with the extrusion being sectioned at the required lengths.
  • Each of the engagement elements 11 comprises a pivot bead 41, in this embodiment of part-circular section, which extends along the length thereof and is received in the pivot recess 27 in the frame element 9, such as to provide for a pivotal connection of the engagement element 11 to the frame element 9, a first, screen engagement member 43 which is configured to engage a printing screen 3, and a second, locking member 45 which is configured to engage the catch surface 39 of one of the catch elements 35a-e, such that the engagement element 11 is locked thereagainst in the respective tensioning position.
  • pivot bead 41 of the engagement element 11 and the pivot recess 27 of the frame element 9 are configured such as to allow for the pivot bead 41 to be radially inserted into the pivot recess 27, and thereby enable fitting of the engagement elements 11 subsequent to the connection of the frame elements 9.
  • the pivot bead 41 of the engagement element 11 and the pivot recess 27 of the frame element 9 could be configured to provide for captive engagement, in which case, the engagement elements 11 would have to be fitted to the frame elements 9 prior to connection of the frame elements 9.
  • the screen engagement member 43 comprises an elongate arm which extends substantially radially from the pivot bead 41 and includes an engagement feature 47, in this embodiment at the distal end thereof, which in use engages the respective edge of a printing screen 3.
  • the locking member 45 comprises an elongate arm which extends substantially radially from the pivot bead 41, here in a direction generally laterally outwardly relative to the frame element 9, and includes an engagement feature 49, in this embodiment at the distal end thereof, which is configured such as to be slideable over the guide surfaces 37 of the catch elements 35a-e to enable the pivoting movement of the engagement element 11 in the one, tensioning sense and lock against a respective one of the catch surfaces 39 of the catch elements 35a-e to prevent the pivoting movement of the engagement element 11 in the opposite sense.
  • the locking member 45 is sufficiently resilient as to be deformable, such as to allow the engagement element 11 to be slid over the catch elements 35a-e when pivoted in the one, tensioning sense, but yet prevent the pivoting movement of the engagement element 11 in the opposite sense under the tension as applied to a printing screen 3.
  • the engagement feature 49 of the locking member 45 includes a first, inclined guide surface 51 which is forwardly directed in the one, tensioning sense and provides for the sliding of the engagement feature 49 over the guide surfaces 37 of the catch elements 35a-e, and a second, catch surface 53 which is rearwardly directed in the tensioning sense and acts to engage a respective one of the catch surfaces 39 of the catch elements 35a-e, such as to provide for the locking of the engagement feature 49 at a respective one of the catch elements 35a-e.
  • the engagement elements 11 are fabricated from an extrusion, here an aluminum extrusion, with the extrusion being sectioned at the required lengths.
  • a printing screen 3 is then located in position on the frame unit 1, in this embodiment with the engagement members 5 at the edges of the printing screen 3 being located in the cavities 19 in the frame elements 9 of the respective frame members 7a-d, such that the engagement features 47 of the screen engagement members 43 are located in the engagement recesses 6 in the respective engagement members 5 of the printing screen 3.
  • This pivoting movement acts both to move the engagement feature 47 of the screen engagement member 43 laterally outwardly, which tensions the printing screen 3, and vertically inwardly, which causes the printing screen 3 to be deflected over the guide surface 23 of the guide member 21 so as to ensure the planarity of the printing screen 3.
  • the extent of the pivoting movement is dictated by the extent of the applied force F, with the greater the applied force F, the greater the extent of the pivoting movement.
  • the engagement feature 49 of the locking member 45 is driven over one or more of the catch elements 35a-e, and is locked against the catch surface 39 of the adjacent catch element 35a- e, in this embodiment the third catch element 35c, such as to lock the printing screen 3 permanently at the required, predetermined tension. When so tensioned, the printing screen 3 is then ready for use in a screen printing machine.
  • the frame unit 1 could include corner pieces 61, in this embodiment L-shaped pieces, which connect the respective ends of the frame members 7a-d.
  • the corner pieces 61 could be a tight, interference fit in complementary recesses 63 in the frame members 7a-d, such that the frame members 7a-d define a substantially rigid, unitary frame prior to the fitting of a printing screen 3.
  • the corner pieces 61 could be a sliding fit in complementary recesses 63 in the frame members 7a-d, in which case the frame members 7a-d would be freely connected prior to the fitting of a printing screen 3, but define a rigid frame following the tensioning of the printing screen 3.
  • the engagement elements 11 could be configured to include a plurality of projections, in the manner of a comb element, for enabling engagement with printing screens of the kind which include engagement apertures, typically slotted apertures, in the edges thereof, such as disclosed in WOA-1993/025061 and WO-A-1997/003833.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Screen Printers (AREA)

Abstract

L'invention concerne une unité de cadre permettant de supporter un écran d'impression sous tension, l'unité de cadre comprenant un cadre qui comporte au moins un élément de cadre, ledit ou lesdits éléments de cadre (9) comprenant : un élément de cadre support (9) qui comprend une pluralité d'éléments d'accrochage (35a, 35b, 35c, 35d) ; et au moins un élément de contact (11) pour mettre en contact un écran d'impression ajusté (3), ledit ou lesdits éléments de contact (11) sont couplés de façon mobile avec l'élément de cadre support (9) de façon à pouvoir se déplacer dans un sens de tension pour mettre sous tension un écran d'impression ajusté (3) et supporter celui-ci sous tension, ledit ou lesdits éléments de contact (11) englobant une caractéristique de contact (49) qui, avec le mouvement dudit ou desdits éléments de contact (11), se déplacent par rapport aux éléments d'accrochage (35a, 35b, 35c, 35d) et sont configurés pour venir au contact de l'un des éléments d'accrochage correspondant en position à l'état de mise sous tension, pour ainsi y verrouiller ledit ou lesdits éléments de contact (11).
EP06849384A 2005-11-07 2006-11-07 Unité de cadre permettant de supporter un écran d'impression Withdrawn EP1945454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0522662A GB2431899B (en) 2005-11-07 2005-11-07 Frame unit for supporting a printing screen
PCT/EP2006/010630 WO2007104347A1 (fr) 2005-11-07 2006-11-07 unité de cadre permettant de supporter un écran d'impression

Publications (1)

Publication Number Publication Date
EP1945454A1 true EP1945454A1 (fr) 2008-07-23

Family

ID=35516463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06849384A Withdrawn EP1945454A1 (fr) 2005-11-07 2006-11-07 Unité de cadre permettant de supporter un écran d'impression

Country Status (3)

Country Link
EP (1) EP1945454A1 (fr)
GB (1) GB2431899B (fr)
WO (1) WO2007104347A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009009732A1 (de) * 2009-02-19 2010-09-02 Koenen Gmbh Siebdruckrahmen
CN101985253A (zh) * 2010-08-17 2011-03-16 江利 丝网印刷框架装置及在框架上张紧丝网的方法
GB2497086A (en) * 2011-11-29 2013-06-05 Architectural & Metal Systems Ltd Printing screen
WO2014160815A1 (fr) * 2013-03-26 2014-10-02 Ricky Paul Bennett Cadre de tension de film de pochoir équilibré ayant un dispositif d'alignement de film
GB2586610A (en) * 2019-08-28 2021-03-03 Asm Assembly Systems Singapore Pte Ltd Reinforced tensioning frame
GB2592983B (en) * 2020-03-13 2022-12-07 Tannlin Tech Limited Tensioned printing screen frame, assembly and method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788216A (en) * 1971-12-08 1974-01-29 Dia Print Co Inc Adjustable screen printing chase
US3908293A (en) * 1974-09-19 1975-09-30 Stretch Devices Inc Screen tensioning and printing frame
US4409749A (en) * 1981-09-08 1983-10-18 Hamu Kaino J Stretch frame
WO1990014232A1 (fr) * 1989-05-24 1990-11-29 Neville Harry Martin Cadre de serigraphie avec cadre interieur en forme de l
US5136797A (en) * 1989-09-09 1992-08-11 Hildebrandt Greg A Frame having shiftable bars with flexible ends for securing fabric using adhesive
GB2264460B (en) 1992-06-03 1994-02-16 David Godfrey Williams Improved stencil or mask for applying solder to circuit boards and support frame
GB2303333B (en) 1995-07-20 1998-09-23 David Godfrey Williams Improved apparatus for supporting and tensioning a stencil or mask for use in applying solder paste to circuit boards and a mounting support means therefor
US5979313A (en) * 1997-03-25 1999-11-09 Bebro-Electronic Bengel & Bross Gmbh Stencil holder having independently movable tensioning elements
GB2407799B (en) 2003-11-07 2006-02-08 Dek Int Gmbh A frame unit for tensioning a printing screen and a jig for fitting a printing screen to or removing a printing screen from a frame unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007104347A1 *

Also Published As

Publication number Publication date
GB2431899B (en) 2010-05-12
WO2007104347A1 (fr) 2007-09-20
GB2431899A (en) 2007-05-09
GB0522662D0 (en) 2005-12-14

Similar Documents

Publication Publication Date Title
WO2007104347A1 (fr) unité de cadre permettant de supporter un écran d'impression
EP1684976B1 (fr) Cadre pour tendre une trame d'impression
US9162437B2 (en) Frame assembly for supporting printing screens, a frame support mechanism for supporting the same, and a method of mounting printing screens in a screen printing machine
RU2341377C2 (ru) Трафаретные сетки, рамы для них и узлы трафаретной сетки
EP0643902B1 (fr) Cache ou masque ameliore utilise pour appliquer une pate a souder sur des cartes de circuit et cadre support de celui-ci
JP2009525894A (ja) 印刷スクリーン、印刷スクリーン用フレーム及び印刷スクリーンユニット
US5819651A (en) Clamping-stretching system for stencils for screen printers,with printing table for PC boards
US8595966B2 (en) Sign assembly
US20050268800A1 (en) Locking bars for screen printing
CN111417902B (zh) 印刷丝网框架固定装置
EP1717029A3 (fr) Machine d'impression sérigraphique
WO1994026518A1 (fr) Systeme de serrage-verrouillage de pochoirs pour installations d'impression au cadre, muni d'un plateau d'impression de cartes de circuits imprimes
DE19525851C1 (de) Verbindungselement zur Befestigung von Seitenwänden eines Schaltschrankes
US6553904B1 (en) Self-tensioning silk screen frame
AU702739B2 (en) A carrier for a screen printing stencil
CN114269562B (zh) 加强型张紧框架
JP6941194B2 (ja) 接続アセンブリ及びそのケーブル管理装置
NL2026851B1 (nl) Zonnescherm en werkwijze voor het monteren van een dergelijk zonnescherm
DE19527692A1 (de) Vorrichtung zur Aufnahme eines Tafelelements
DE19648606C1 (de) Vorrichtung zur Aufnahme eines Tafelelements
KR200408076Y1 (ko) 슬라이딩 플레이트가 장착된 블라인드용 클램프
CN101544095B (zh) 印刷丝网、其框架和印刷丝网装置
EP0817683A1 (fr) Dispositif tendeur pour materiel souple de forme plane
DE202008011446U1 (de) Wasserflaschenhalterung für ein Fahrrad
WO2004008821A1 (fr) Dispositif de montage/demontage et de fixation d'une carte de circuit imprime

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080422

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20091009