EP0519168A1 - Soupape de dégazage pour un récipient destiné au transport de liquides dangereux - Google Patents

Soupape de dégazage pour un récipient destiné au transport de liquides dangereux Download PDF

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Publication number
EP0519168A1
EP0519168A1 EP92105482A EP92105482A EP0519168A1 EP 0519168 A1 EP0519168 A1 EP 0519168A1 EP 92105482 A EP92105482 A EP 92105482A EP 92105482 A EP92105482 A EP 92105482A EP 0519168 A1 EP0519168 A1 EP 0519168A1
Authority
EP
European Patent Office
Prior art keywords
cap
surge protection
closure
degassing
protection cap
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.)
Granted
Application number
EP92105482A
Other languages
German (de)
English (en)
Other versions
EP0519168B1 (fr
Inventor
Eric Frohn
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE9107432U external-priority patent/DE9107432U1/de
Priority claimed from DE9112190U external-priority patent/DE9112190U1/de
Application filed by Individual filed Critical Individual
Publication of EP0519168A1 publication Critical patent/EP0519168A1/fr
Application granted granted Critical
Publication of EP0519168B1 publication Critical patent/EP0519168B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1616—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve
    • B65D51/165—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve formed by a slit or narrow opening

Definitions

  • the invention relates to a degassing valve in the closure of the filling and emptying opening of a stacking container for the transport of dangerous liquids according to the preamble of claim 1.
  • Such containers are usually thin-walled and consist of high density polyethylene (HDPE). They have stacking surfaces on the bottom and shoulders, which enable containers of the same type to be stacked one on top of the other up to a height of 3m.
  • HDPE high density polyethylene
  • EP 0 382 146 A1 describes such a container closure, which is in the surface of its closure cap Degassing openings and on the inside of the cap has a molded sleeve into which a correspondingly porous sponge body is pressed by an overlapping cover cap.
  • This has a medium, relatively large opening, the sponge body on its side facing this opening has a gas-impermeable film which covers this opening.
  • this film is displaced against the action of the sponge body to such an extent that the gas can get into and through this sponge body to the outside.
  • such an arrangement does not offer sufficient protection against liquid hammer during corresponding container movements, since the liquid can displace this film more strongly and gain access to the sponge body, penetrate it and is conveyed to the outside by the inflowing gas.
  • DE 36 18 829 A1 describes a degassing valve for a transport container for gas-secreting, in particular powdery goods, in the upper cover of which is formed from a thicker film, a convex inward-pointing spherical cap is formed with an arcuate or straight continuous punched incision.
  • This incision should have an opening width of 0.05 to 0.08mm, which is closed by a highly viscous silicone oil in the rest position. With internal pressure, the cut edges open so far that the sealing silicone oil releases the expanding gas.
  • this closure is only suitable for such contents, such as light powders, in which no liquid contamination can occur.
  • the oil is unsuitable as a sealant for aggressive content liquids.
  • the object of the invention is a degassing valve that releases pressures already below 0.1 to 0.15 bar, but withholds the liquid content during transportation-related buffing movements, surge loads and liquid impacts to the smallest amounts and, on the other hand, is simple and cheap to manufacture.
  • All parts of the degassing valve according to the invention can be made of polyethylene. You do not need to remove the valve beforehand when recycling the container.
  • the cap 1 of a transport container for dangerous liquids has a bore 2 as a gas outlet opening, which leads into the interior of a valve sleeve 3 open at the bottom.
  • a cylindrical sintering plug 4 which consists of very fine-pored, high molecular weight polyethylene, is pressed into this vetil sleeve with a precise peripheral fit.
  • a cup-shaped surge protection cap 5 is pushed over the valve sleeve 3 from below and has an inner bead 6 in its wall, which is snapped into a recess 7 running around the valve sleeve 3.
  • the surge protection cap 5 has circumferential sealing lips 9 on its inner wall above the inner bead 6, which seal against the outer wall of the valve sleeve 3.
  • a continuous incision 10 is provided in the base 11 of the surge protection cap 5, the section plane of which is inclined at an acute angle, preferably 45 °, to the base 11 and extends from wall to wall of the surge protection cap 5. This cut is completely closed due to the elasticity of the material of the bottom 11 in the unloaded state.
  • the sealing lips 12 and 13 formed by this slot let through the overpressure but not the liquid content.
  • the bevel of the incision 10 means that the interior of the container faces Surfaces 14 and 15 of the bottom 11 of different sizes.
  • the surface 14 is accordingly the larger area of application for the pressure exerted by the liquid surge and is therefore raised more, the protruding lip edge 16 of the surface 14 being pressed in a sealing manner against the sealing lip 12, as shown in FIG. 4. This results in a seal which is sufficient for liquids, but which still has sufficient play for the passage of the compressed gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP92105482A 1991-06-17 1992-03-30 Soupape de dégazage pour un récipient destiné au transport de liquides dangereux Expired - Lifetime EP0519168B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9107432U 1991-06-17
DE9107432U DE9107432U1 (de) 1991-06-17 1991-06-17 Entgasungsventil
DE9112190U DE9112190U1 (de) 1991-09-30 1991-09-30 Entgasungsventil
DE9112190U 1991-09-30

Publications (2)

Publication Number Publication Date
EP0519168A1 true EP0519168A1 (fr) 1992-12-23
EP0519168B1 EP0519168B1 (fr) 1995-06-07

Family

ID=25958300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105482A Expired - Lifetime EP0519168B1 (fr) 1991-06-17 1992-03-30 Soupape de dégazage pour un récipient destiné au transport de liquides dangereux

Country Status (2)

Country Link
EP (1) EP0519168B1 (fr)
DE (1) DE59202439D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5515994A (en) * 1993-12-23 1996-05-14 Goglio; Luigi Degassing valve for aromatic products, such as coffee and similar products
EP0967157A1 (fr) * 1998-06-25 1999-12-29 Argo Sa Fermeture de dégazage semi-perméable
JP2006273344A (ja) * 2005-03-28 2006-10-12 Sekisui Seikei Ltd ポリ容器用ガス抜き蓋

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641201A (en) * 1940-04-25 1950-08-09 Pennsylvania Salt Mfg Co Improvements in or relating to vented containers
US3059799A (en) * 1960-08-09 1962-10-23 Sealright Oswego Falls Corp Milk bottle cap
US4122943A (en) * 1976-10-21 1978-10-31 Jules Silver Valved two compartment dispensing container
AU3250078A (en) * 1977-01-17 1979-07-26 Creighton Looker & John Louis Marion Edwin Twopart stopper with venting slit
EP0110046A1 (fr) * 1982-11-30 1984-06-13 Rhein-Conti Kunststoff-Technik GmbH Fermeture de récipient perméable aux gaz
EP0296437A2 (fr) * 1987-06-25 1988-12-28 MERCK PATENT GmbH Fermeture de dégazage pour réceptacles pour liquides
EP0382146A1 (fr) * 1989-02-06 1990-08-16 Unilever N.V. Fermeture de récipient avec valve de dégazage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641201A (en) * 1940-04-25 1950-08-09 Pennsylvania Salt Mfg Co Improvements in or relating to vented containers
US3059799A (en) * 1960-08-09 1962-10-23 Sealright Oswego Falls Corp Milk bottle cap
US4122943A (en) * 1976-10-21 1978-10-31 Jules Silver Valved two compartment dispensing container
AU3250078A (en) * 1977-01-17 1979-07-26 Creighton Looker & John Louis Marion Edwin Twopart stopper with venting slit
EP0110046A1 (fr) * 1982-11-30 1984-06-13 Rhein-Conti Kunststoff-Technik GmbH Fermeture de récipient perméable aux gaz
EP0296437A2 (fr) * 1987-06-25 1988-12-28 MERCK PATENT GmbH Fermeture de dégazage pour réceptacles pour liquides
EP0382146A1 (fr) * 1989-02-06 1990-08-16 Unilever N.V. Fermeture de récipient avec valve de dégazage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5515994A (en) * 1993-12-23 1996-05-14 Goglio; Luigi Degassing valve for aromatic products, such as coffee and similar products
EP0967157A1 (fr) * 1998-06-25 1999-12-29 Argo Sa Fermeture de dégazage semi-perméable
JP2006273344A (ja) * 2005-03-28 2006-10-12 Sekisui Seikei Ltd ポリ容器用ガス抜き蓋

Also Published As

Publication number Publication date
DE59202439D1 (de) 1995-07-13
EP0519168B1 (fr) 1995-06-07

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