EP0002155B1 - Valve de désaération pour l'ensachage de produits pulvérulents fluidisés - Google Patents

Valve de désaération pour l'ensachage de produits pulvérulents fluidisés Download PDF

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Publication number
EP0002155B1
EP0002155B1 EP78400177A EP78400177A EP0002155B1 EP 0002155 B1 EP0002155 B1 EP 0002155B1 EP 78400177 A EP78400177 A EP 78400177A EP 78400177 A EP78400177 A EP 78400177A EP 0002155 B1 EP0002155 B1 EP 0002155B1
Authority
EP
European Patent Office
Prior art keywords
valve
sack
perforations
bag
pocket
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.)
Expired
Application number
EP78400177A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0002155A1 (fr
Inventor
Robert Callet
Henri Jeantet
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.)
Imprimerie Et Papeterie De L'est Dite SA Ste
Original Assignee
Imprimerie Et Papeterie De L'est Dite SA Ste
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 Imprimerie Et Papeterie De L'est Dite SA Ste filed Critical Imprimerie Et Papeterie De L'est Dite SA Ste
Publication of EP0002155A1 publication Critical patent/EP0002155A1/fr
Application granted granted Critical
Publication of EP0002155B1 publication Critical patent/EP0002155B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/7891—Flap or reed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/794—With means for separating solid material from the fluid
    • Y10T137/8122—Planar strainer normal to flow path

Definitions

  • the present invention relates to a deaeration valve for bagging fluidized pulverulent products.
  • the invention applies more particularly to deaeration valves described in FR-A-2,338,194 and intended to equip bags of the "open mouth” type and with an impermeable wall.
  • this type of valve is formed of two superimposed plastic film elements made integral so as to provide between them a sealed intermediate space terminated by a channel, said valve being fixed outside the flexible wall of a package and put in communication with the interior thereof to allow the evacuation of air and facilitate the bagging of powdered products which are fluidized to facilitate their transport and handling, that is to say suspended in air so as to have a mixture of apparent density much lower than that of the product alone.
  • the problem therefore consists, at the time of bagging, in eliminating this air serving as a vehicle for the product in order to achieve optimum filling of the bags.
  • the invention therefore essentially aims to provide a deaeration valve, in particular for open mouth bag and impermeable wall, which not only ensures filtration of the exhaust air but above all allows to quickly and completely deaerate the interior of said bag during its filling and prevents the formation of air pockets in the mass of the product.
  • the deaeration valve for a bag in particular an open mouth bag intended to receive an atomized powdered product, said valve comprising two superimposed film elements made integral so as to form a pocket providing a sealed interior space ending in at least one suction channel, the external face of one of the elements being fixed to the external face of the wall of the bag along a closed contour which delimits an area comprising perforations through said element and the wall, these perforations being arranged opposite so as to make the interior of the bag communicate with the interior of the valve pocket, and a sheet or filter plate with a porous texture being applied to the internal face of the perforated wall of the bag in front the perforations, is characterized in that said filtering plate is a drainage plate whose surface is close to that of the bag laid flat and has a sufficient thickness compared to the dimensions of the bag and the suction pocket to promote the drainage of air towards it like a wick.
  • the material constituting said sheet is felt or a synthetic-open-structure foam.
  • the invention therefore consists in adding to a pocket-shaped valve, intended for deaerating a bag filled with "open mouth", a sheet or drainage plate which extends far from the outlet perforations so as to drain in the manner wicks away air pockets.
  • the drainage sheet must have a porous texture to allow the internal circulation of air, it is also used as a filter at the perforation level, but its main function is first to drain the distant air streams and collect them in the area with the suction holes.
  • the porous-textured sheet applied according to the invention to the internal face of the perforated wall of the bag extends far beyond the area of the perforations, has a high thickness and performs two functions, namely a function which consists in going to catch the air nets far inside the bag, to drain them towards the perforations and to gather them on these and that to filter the air thus drained, said sheet then behaving as a network of multiple channels converging towards the suction zone where the perforations are located, the mouths of said channels constituting as many air intakes remote from the perforations and distributed over the entire extent of the bag.
  • the flexible bag 1 for example made of plastic, comprises a valve 2 formed of two superimposed plastic film elements 3 and 4 (cf. fig. 2) made integral at one end and at the side edges so as to provide a sealed interior space 5 communicating with the outside via a suction channel 6, the element 3 adjacent to the external face 7 of a wall 8 of the bag 1 being welded to the latter by a cord 9 with a closed contour delimiting a zone 10, in which openings 11 are arranged in coincidence both through the wall 8 of the bag 1 and through the element 3 of the valve, these openings 11 making the interior 12 of the bag communicate 1 with the internal space 5 of the valve 2.
  • a valve 2 formed of two superimposed plastic film elements 3 and 4 (cf. fig. 2) made integral at one end and at the side edges so as to provide a sealed interior space 5 communicating with the outside via a suction channel 6, the element 3 adjacent to the external face 7 of a wall 8 of the bag 1 being welded to the latter by a cord 9 with a closed contour delimiting a zone 10, in which opening
  • a filter plate 14 centered substantially on the openings 11 formed through said wall 8 and the adjacent element 3 of the valve 2.
  • This filter plate 14 is in the form of a thick sheet, for example of felt or synthetic foam with an open structure, the thickness E of which is sufficient to allow the passage of air therein; the dimensions (H, L) of the filter sheet or plate are large compared to those (h, I) of the valve 2 and the surface of the sheet can even reach that of the bag spread out flat.
  • the air is sucked through the openings 11 substantially in the middle of the filter plate 14 whose texture and the thickness makes it possible to distribute the suction over its entire surface oriented towards the inside of the bag.
  • the air currents shown schematically by arrows in strong lines, pass through the sheet 14 on all sides, both in the thickness thereof, parallel to its large faces, and perpendicular to them to focus on the outlet openings 11.
  • the sheet thus plays the role of a "wick" or a drain to multiply the suction effect and drain the air in a large volume, which is obtained from the fact that the air conveyed inside of the sheet can circulate according to the three dimensions thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Basic Packing Technique (AREA)
EP78400177A 1977-11-17 1978-11-13 Valve de désaération pour l'ensachage de produits pulvérulents fluidisés Expired EP0002155B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7734659 1977-11-17
FR7734659A FR2409205A2 (fr) 1977-11-17 1977-11-17 Valve de desaeration pour l'ensachage de produits pulverulents

Publications (2)

Publication Number Publication Date
EP0002155A1 EP0002155A1 (fr) 1979-05-30
EP0002155B1 true EP0002155B1 (fr) 1982-07-14

Family

ID=9197752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78400177A Expired EP0002155B1 (fr) 1977-11-17 1978-11-13 Valve de désaération pour l'ensachage de produits pulvérulents fluidisés

Country Status (15)

Country Link
US (1) US4215725A (fi)
EP (1) EP0002155B1 (fi)
JP (1) JPS5520180A (fi)
BE (1) BE871856A (fi)
BR (1) BR7807525A (fi)
CA (1) CA1111388A (fi)
DE (2) DE7833575U1 (fi)
DK (1) DK509378A (fi)
ES (1) ES475136A1 (fi)
FI (1) FI63907C (fi)
FR (1) FR2409205A2 (fi)
GB (1) GB2008068B (fi)
IE (1) IE47667B1 (fi)
IT (1) IT1108385B (fi)
LU (1) LU80529A1 (fi)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62228130A (ja) * 1986-03-29 1987-10-07 Shimadzu Corp 荷重−伸びデ−タ処理方法
JPS6332147U (fi) * 1986-08-12 1988-03-02
JPS6332146U (fi) * 1986-08-12 1988-03-02
JPS63111480U (fi) * 1987-01-13 1988-07-18
JPH0194254U (fi) * 1987-11-02 1989-06-21
JP2773192B2 (ja) * 1989-03-02 1998-07-09 藤森工業株式会社 ガス抜き包装袋の製造方法
JP2741723B2 (ja) * 1991-03-29 1998-04-22 株式会社島津製作所 材料試験機の荷重測定装置
US5265653A (en) * 1992-11-16 1993-11-30 Herlth August H Portable pneumatic liquid transfer assembly
PT729901E (pt) * 1995-03-23 2000-11-30 Procter & Gamble Embalagem ou tampa com um sistema de ventilacao com sistema de drenagem
ES2151588T3 (es) * 1995-07-05 2001-01-01 Procter & Gamble Contenedor o tapa con medio de ventilacion.
DE19843430A1 (de) * 1998-09-22 2000-03-23 Wipf Ag Volketswil Staubdichter Beutel für feinpulvrige Produkte
US6070728A (en) * 1999-02-02 2000-06-06 Fres-Co System Usa, Inc. Filter bag with valve
EP1091163A1 (de) * 1999-10-06 2001-04-11 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Einrichtung zum Aufnehmen und Festhalten von Verunreinigungen in Flüssigkeiten in einem umlaufende Maschinenelemente aufnehmenden Gehäuse
AU2002234998B2 (en) 2001-02-21 2005-07-28 Tilia International, Inc. Method for preparing air channel-equipped film for use in vacuum package
US7138025B2 (en) 2003-03-05 2006-11-21 Tilia International, Inc. Method for manufacturing a sealable bag having an integrated tray for use in vacuum packaging
US7087130B2 (en) 2003-03-05 2006-08-08 Tilia International, Inc. Method for manufacturing a sealable bag having an integrated zipper for use in vacuum packaging
US20050034806A1 (en) 2003-03-05 2005-02-17 Tilia International, Inc. Method for manufacturing liquid-trapping bag for use in vacuum packaging
US7517484B2 (en) 2003-03-24 2009-04-14 Sunbeam Products, Inc. Forming evacuation channels during single and multi-layer extrusion process
US7220053B2 (en) 2003-12-16 2007-05-22 Sunbeam Products, Inc. Flexible composite bag for vacuum sealing
US7726880B2 (en) * 2004-06-29 2010-06-01 The Glad Products Company Flexible storage bag
US7534039B2 (en) 2004-07-22 2009-05-19 Sunbeam Products, Inc. Vacuum packaging films patterned with protruding cavernous structures
US7798713B2 (en) * 2004-08-27 2010-09-21 Pactiv Corporation Polymeric bags with pressure relief valves
DE102006012302A1 (de) 2006-03-15 2007-09-27 Seaquist Perfect Dispensing Gmbh Abgabevorrichtung
US7784160B2 (en) 2007-03-16 2010-08-31 S.C. Johnson & Son, Inc. Pouch and airtight resealable closure mechanism therefor
US7886412B2 (en) 2007-03-16 2011-02-15 S.C. Johnson Home Storage, Inc. Pouch and airtight resealable closure mechanism therefor
US7857515B2 (en) 2007-06-15 2010-12-28 S.C. Johnson Home Storage, Inc. Airtight closure mechanism for a reclosable pouch
US7887238B2 (en) 2007-06-15 2011-02-15 S.C. Johnson Home Storage, Inc. Flow channels for a pouch
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US7874731B2 (en) 2007-06-15 2011-01-25 S.C. Johnson Home Storage, Inc. Valve for a recloseable container
US7946766B2 (en) 2007-06-15 2011-05-24 S.C. Johnson & Son, Inc. Offset closure mechanism for a reclosable pouch
DE102007051980A1 (de) * 2007-08-29 2009-03-05 Seaquist Perfect Dispensing Gmbh Abgabevorrichtung
DE102007051982A1 (de) * 2007-08-29 2009-03-05 Seaquist Perfect Dispensing Gmbh Abgabevorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US773876A (en) * 1903-06-23 1904-11-01 Automatic Weighing Machine Company Method of compacting finely-divided materials.
US1977139A (en) * 1933-09-12 1934-10-16 O'brien Nathan Sack for vacuum cleaners
US2821338A (en) * 1954-10-21 1958-01-28 Melvin R Metzger Valve-equipped container
DE1063082B (de) * 1957-06-04 1959-08-06 Bielefelder Sackfabrik G M B H Ventilsack aus Gewebe, Papier od. dgl. mit Entlueftungsoeffnungen mit innerer Abdeckung
NL6904549A (en) * 1969-03-25 1970-09-29 Plastic sack with air vents

Also Published As

Publication number Publication date
DK509378A (da) 1979-05-18
IE782259L (en) 1979-05-17
IT7869591A0 (it) 1978-11-14
BR7807525A (pt) 1979-07-24
DE7833575U1 (de) 1979-02-15
FR2409205A2 (fr) 1979-06-15
BE871856A (fr) 1979-05-08
FR2409205B2 (fi) 1981-02-27
GB2008068A (en) 1979-05-31
EP0002155A1 (fr) 1979-05-30
LU80529A1 (fr) 1980-06-05
FI63907B (fi) 1983-05-31
US4215725A (en) 1980-08-05
FI783471A (fi) 1979-05-18
JPS5520180A (en) 1980-02-13
DE2861953D1 (en) 1982-09-02
IE47667B1 (en) 1984-05-16
IT1108385B (it) 1985-12-09
ES475136A1 (es) 1979-04-01
GB2008068B (en) 1982-04-21
FI63907C (fi) 1983-09-12
CA1111388A (en) 1981-10-27

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