EP0495374B1 - Dispositif d'aération pour récipients - Google Patents

Dispositif d'aération pour récipients Download PDF

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Publication number
EP0495374B1
EP0495374B1 EP92100171A EP92100171A EP0495374B1 EP 0495374 B1 EP0495374 B1 EP 0495374B1 EP 92100171 A EP92100171 A EP 92100171A EP 92100171 A EP92100171 A EP 92100171A EP 0495374 B1 EP0495374 B1 EP 0495374B1
Authority
EP
European Patent Office
Prior art keywords
cap
container
ring
ring element
radial bore
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 - Lifetime
Application number
EP92100171A
Other languages
German (de)
English (en)
Other versions
EP0495374A2 (fr
EP0495374A3 (en
Inventor
Hermann Dipl.-Ing. Grimm (Fh)
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.)
Umformtechnik Hausach GmbH
Original Assignee
Umformtechnik Hausach 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 Umformtechnik Hausach GmbH filed Critical Umformtechnik Hausach GmbH
Publication of EP0495374A2 publication Critical patent/EP0495374A2/fr
Publication of EP0495374A3 publication Critical patent/EP0495374A3/de
Application granted granted Critical
Publication of EP0495374B1 publication Critical patent/EP0495374B1/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
    • B65D51/1633—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
    • 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
    • B65D51/1655—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 an elastic band closing an opening in a tubular part of the closure encircled by said band

Definitions

  • the invention relates to a ventilation device for containers of the type specified in the preamble of claim 1.
  • Containers e.g. Small containers that are used for the storage and transport of liquids are usually provided with a ventilation device through which air can flow in during filling or emptying.
  • a ventilation device consists of a pipe socket, which is attached to the container wall or the container top and can be closed with a screw cap.
  • containers for holding liquids must be equipped with an additional pressure compensation device, which essentially consists of there is a pressure relief valve that opens automatically when the internal pressure of the container is increased.
  • This measure is intended to prevent damage, in particular bursting, of the container when the contents of the container are heated, for example as a result of heating, so that excessive pressure is built up in the container. Such heating can occur both in the event of a fire and as a result of excessive sunlight.
  • the pressure relief valve should close again automatically when the permissible nominal pressure is reached.
  • the pressure relief valves provided in containers in addition to the ventilation device usually have a piston or plate closing the valve bore, which is raised by the gas or vapor pressure present against the action of a return spring, thereby releasing the valve opening.
  • Pressure relief valves of this type the pistons or tappets of which must rest on a precisely machined valve seat, are relatively complex and, compared to the often scarcely calculated costs of simple containers, are too expensive.
  • a comparable ventilation device is also known from GB-A-1 136 403, where the radial bore is not realized on the outer circumference of the cap, but within an integrally formed recess, so that the rubber-elastic band which closes the bore is within the Well arranged and thus protected from damage.
  • the present invention has for its object to improve a ventilation device of the type mentioned in such a way that it no longer has the disadvantages described and in particular the liquid movements occurring during transport and implementation do not result in liquid in any significant amount can reach the area of the radial bores and the ring element is occupied from the inside or is lifted off the radial bore.
  • a surge protection device is realized in that a flat ring with a passage opening is arranged between the cap and the pipe socket, which can be closed by means of a plate which can be lifted off from the passage opening by the action of pressure.
  • This measure has the advantage that when assembling the container the flat ring according to the invention can be used instead of the usual sealing ring without additional assembly effort.
  • the plate is preferably elastically connected in one piece to the flat ring, so that it can be produced particularly easily and without punching waste.
  • this ring element is designed as a hose membrane, similar to a valve for bicycle tubes, which is clamped onto a cylindrical extension of the cap which has the radial bore.
  • an O-ring is provided instead of the hose membrane, which is inserted into an annular groove of the cylindrical extension of the cap under tension.
  • several, e.g. Four radial bores are provided, so that even if a bore is dirty, sufficient safety is still guaranteed.
  • the valve proposed by the invention does not have these disadvantages. Even if a radial bore is closed, the relief of excess pressure is guaranteed by one of the other bores. If the valve becomes dirty due to deposits between the ring element and the outlet opening of the radial bore and becomes leaky as a result, simple cleaning is possible after removing the ring element.
  • This ring element consisting of a hose membrane or an O-ring, is extremely inexpensive and can be replaced during cleaning.
  • the material quality of the ring element depends on the compatibility with the contents of the container. With the large number of materials available, sealing rings can be provided even with very aggressive container contents. If desired, combustible material can be selected for the ring element, which creates additional fire protection. Rubber suitable mixture fulfills this condition.
  • the surge protection device has a pressure-elastic element that opens under excess pressure in the interior of the container and enables pressure equalization. In the closed state, this surge protection device, in particular, blocks the liquid container contents from the valve.
  • This protective cap protects in particular the hose membrane or the O-ring against mechanical damage from the outside.
  • FIGS. 2 and 4 The left half in Figures 1 and 3 shows the ventilation device in side view, the right half in axial section.
  • the radial bores 54a-d and 74a-d are shown in dashed lines in the top views according to FIGS. 2 and 4.
  • Identical parts are in the drawings with the same numerals, corresponding elements of the cap in the Figures 2 and 4 denoted by the corresponding digits of the fifties and seventies series.
  • a pipe socket 14 is provided as a ventilation device, which is connected to the container top 11 of a container 10.
  • the latter has a collar-shaped outlet connection 12, with which the pipe connection 14 is firmly connected via a weld seam 13.
  • the interior of the container 10 can thus be aerated and vented via the pipe socket 14 directed upward during transport.
  • the pipe socket 14 is to be closed, namely in the exemplary embodiment according to FIGS. 1 and 2 with the protective cap 50 and in the exemplary embodiment according to FIGS. 3 and 4 with the protective cap 70, which can be screwed onto the external thread 14a of the pipe socket 14 .
  • the caps 50 and 70 which can be tightened by means of a key to be attached to their hexagon 51 and 71, are captively connected to the container 10 by a ball chain 19.
  • an eyelet plate 15 is welded between the container top 11 and pipe socket 14, in the eyelet 15a of which one end of the ball chain 19 is suspended.
  • the other end of the ball chain 19 has an S-hook, not shown, which wraps around the mushroom-shaped cap shoulder 53 or 73 of the cap 50 or 70.
  • a sealing wire 17 with a seal 18 can be fixed to the same eyelet 15, the other end of which penetrates a transverse bore 57 or 77 of the cap 50 or 70.
  • the container cap 50 or 70 has an additional cylinder section 52 or 72, the interior 56 or 76 of which is connected to the external atmosphere via radial bores 54a-d or 74a-d.
  • a hose membrane 55 is clamped onto the cylinder section 52 similarly to a bicycle valve under internal stress such that the outlet openings of the radial bores 54a-d are closed up to a certain maximum pressure inside the container.
  • the hose membrane 55 is partially raised in the area of the radial bores 54a-d from the outer surface of the cylinder section 52, so that the gas under pressure can escape.
  • the bores 54a-d are closed again by the hose membrane 55.
  • the hose membrane 55 can be removed and replaced in a very simple manner.
  • a surge protection device consisting of a flat ring 16a, is placed between the cap 50 and the pipe socket 14.
  • This flat ring 16a has a passage opening which can be covered by a tongue 16c elastically connected to it. Under the action of pressure, this tongue 16c deflects out of its rest position and releases the passage opening.
  • this exemplary embodiment also has a surge protection device, which is arranged between the pipe socket 14 and the screw cap 70 and comprises a flat ring 16a.
  • the protective cap 59 or 79 which has an L-shaped edge cross section.
  • the hose membrane 55 or the O-ring 75 is protected against mechanical damage and also against contamination by the edge 59a or 79a running parallel to the pipe socket 14.
  • the hose membrane 55 melts or burns, provided that it is made of a suitable material, so that the material under high pressure can escape from the container 10 in gaseous or vaporous or liquid state in the event of excessive heating and the container 10 is prevented from bursting .
  • an O-ring 75 with a circular cross-section is provided instead of the hose membrane, which is flat in cross-section, which is inserted into an appropriately designed annular groove 78 in the cylinder section 72 of the cap 70 under internal stress.
  • This O-ring also closes the radial bores 74a-d in the same way and with the same advantageous properties as the hose membrane 55 of the exemplary embodiment according to FIGS. 1 and 2. Because of the greater material thickness, higher sealing forces and better sealing effects can be achieved if necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Sealing Of Jars (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Arc Welding In General (AREA)
  • External Artificial Organs (AREA)
  • Cookers (AREA)

Claims (9)

  1. Dispositif de ventilation pour un réservoir (10) notamment un réservoir recevant des liquides, composé d'un manchon (14) fixé à la paroi du réservoir ou au fond (11) du réservoir, ainsi que d'un capuchon (50, 70) vissé de manière étanche au gaz sur l'un des manchons (14), ayant au moins un perçage radial (54a-d, 74a-d) reliant le volume intérieur du réservoir à l'atmosphère extérieure, et un élément annulaire (55, 75) ayant l'élasticité du caoutchouc étant prévu au niveau du perçage radial, pour être rapporté avec précontrainte pour que le perçage radial (54a-d, 74a-d) soit fermé vis-à-vis de l'atmosphère pour une certaine pression à l'intérieur du réservoir, caractérisé en ce qu'entre le capuchon (50, 70) et le manchon (14) on a prévu une bague plate (16a) ayant une ouverture de passage qui peut se fermer à l'aide d'une plaque reliée élastiquement avec l'anneau plat (16a), et de préférence faisant corps avec celui-ci et qui élimine l'effet de pression en se soulevant par rapport à l'ouverture de passage.
  2. Dispositif selon la revendication 1, caractérisé en ce que le perçage radial (54a-d) est prévu sur un segment de cylindre (52) du capuchon (50) sur lequel est fixée une membrane en forme de tuyau (55) de section plate.
  3. Dispositif selon la revendication 1, caractérisé en ce que le perçage radial (74a-d) est prévu sur un segment de cylindre (72) du capuchon (70) ayant une rainure annulaire (78) recevant sous précontrainte un joint torique (75).
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé par plusieurs capuchons (50, 70) traversés par des perçages radiaux (54a-d, 74a-d) dont les sorties sont fermées par un même élément annulaire (55, 75) commun ayant l'élasticité du caoutchouc.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la plaque est formée d'une languette (16c) découpée dans une rondelle plate.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'élément annulaire (55, 75) est en un matériau inflammable.
  7. Dispositif selon la revendication 6, caractérisé en ce que l'élément annulaire (55, 75) est en caoutchouc.
  8. Dispositif selon au moins l'une des revendications 1 à 7, caractérisé par un capuchon protecteur (59, 79) relié solidairement au capuchon vissé (50, 70) et recouvrant celui-ci, ce capuchon protecteur ayant une section de bord en forme de L, et le bord (59a, 79a) tourné vers le fond supérieur du réservoir recouvrant la membrane en forme de tuyau (55) ou le joint torique (75).
  9. Dispositif selon la revendication 8, caractérisé en ce que le capuchon protecteur (59, 79) est en matière plastique.
EP92100171A 1991-01-15 1992-01-08 Dispositif d'aération pour récipients Expired - Lifetime EP0495374B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4100982 1991-01-15
DE4100982 1991-01-15
DE4115610A DE4115610A1 (de) 1991-01-15 1991-05-14 Be- und entlueftungsvorrichtung fuer behaelter
DE4115610 1991-05-14

Publications (3)

Publication Number Publication Date
EP0495374A2 EP0495374A2 (fr) 1992-07-22
EP0495374A3 EP0495374A3 (en) 1993-03-31
EP0495374B1 true EP0495374B1 (fr) 1996-01-17

Family

ID=25900249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92100171A Expired - Lifetime EP0495374B1 (fr) 1991-01-15 1992-01-08 Dispositif d'aération pour récipients

Country Status (4)

Country Link
EP (1) EP0495374B1 (fr)
AT (1) ATE133131T1 (fr)
DE (2) DE4115610A1 (fr)
ES (1) ES2086010T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755205C1 (de) * 1997-12-12 1999-06-17 Protechna Sa Sicherheitsventil aus Kunststoff für Behälter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB995696A (en) * 1963-03-08 1965-06-23 E R Holloway Ltd Improvements relating to closures for containers
GB1136403A (en) * 1965-02-17 1968-12-11 Reads Ltd Closures for drums and like containers
JPS594203Y2 (ja) * 1975-07-16 1984-02-06 エヌオーケー株式会社 リ−ドバルブ
DE7907144U1 (de) * 1979-03-14 1979-11-22 Joseph Voegele Ag, 6800 Mannheim Ventil, insbesondere sicherheitsventil fuer schmieranlagen

Also Published As

Publication number Publication date
EP0495374A2 (fr) 1992-07-22
DE59205049D1 (de) 1996-02-29
EP0495374A3 (en) 1993-03-31
DE4115610A1 (de) 1992-07-16
ES2086010T3 (es) 1996-06-16
ATE133131T1 (de) 1996-02-15

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