EP0495374A2 - Dispositif d'aération pour récipients - Google Patents

Dispositif d'aération pour récipients Download PDF

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Publication number
EP0495374A2
EP0495374A2 EP92100171A EP92100171A EP0495374A2 EP 0495374 A2 EP0495374 A2 EP 0495374A2 EP 92100171 A EP92100171 A EP 92100171A EP 92100171 A EP92100171 A EP 92100171A EP 0495374 A2 EP0495374 A2 EP 0495374A2
Authority
EP
European Patent Office
Prior art keywords
cap
container
container according
ring
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.)
Granted
Application number
EP92100171A
Other languages
German (de)
English (en)
Other versions
EP0495374B1 (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, which 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 if 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 next 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 have to rest on a precisely machined valve seat, are relatively complex and too expensive compared to the often scarcely calculated costs of simple containers.
  • the present invention has for its object to provide a pressure compensation device for such containers, which meets the safety requirements, but is simpler and therefore cheaper than the pressure relief valves previously used for this purpose.
  • the screw cap of the ventilation device itself is designed as a pressure relief valve, the valve opening being provided in the form of at least one radial bore in the cap and the outlet of which is closed by a rubber-elastic ring element from the outside atmosphere.
  • this ring element is designed similarly to a valve for bicycle tubes as a tube membrane which is clamped onto a cylindrical projection of the cap which has a 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 holes are provided, so that even if a hole is dirty, sufficient safety is still guaranteed.
  • the valve proposed by the invention does not have these disadvantages. Even if a radial hole is closed, the relief of the excess pressure is guaranteed by one of the other holes. If the valve becomes dirty due to deposits between the ring element and the outlet opening of the radial bore and thereby becomes leaky, 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.
  • a surge protection device is inserted between the safety valve and the container interior.
  • This surge protection device has a pressure-elastic element which opens under excess pressure in the interior of the container and enables pressure equalization. When closed, this surge protection device, in particular, blocks the liquid container contents from the valve.
  • this is covered according to claim 5 with a protective cap, for example made of plastic.
  • This protective cap protects in particular the Hose membrane or the O-ring against mechanical damage from the outside.
  • FIGS. 2, 4, 6 and 8. Identical parts are denoted in the drawings with the same numbers, corresponding elements of the cap in Figures 2, 4, 5 and 7 with the corresponding numbers in the twenties, thirties, fifties and seventies respectively.
  • 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 screw cap 20, in the exemplary embodiment according to FIGS. 3 and 4 with the screw cap 30, in the exemplary embodiment according to FIGS. 5 and 6 with the protective cap 50 and in the exemplary embodiment according to FIGS.
  • cap 70 which can be screwed onto the external thread 14a of the pipe socket 14.
  • a sealing ring 16 made of elastic material, for example rubber, inserted between cap 20 or 30 and pipe socket 14 provides the necessary seal.
  • the caps 20, 30, 50 and 70 which by means of one on their Hexagon 21, 31, 51 or 71 key to be attached can be captively connected to the container 10 with a ball chain 19.
  • an eyelet plate 15 is welded between the container top 11 and the 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 attachment 23, 33, 53 and 73 of the cap 20, 30, 50 and 70.
  • a sealing wire 17 with a seal 18 can be fixed on the same eyelet 15, the other end of which penetrates a transverse bore 27, 37, 57 and 77 of the cap 20, 30, 50 and 70, respectively.
  • New is the cylindrical extension 22, 32, 52 and 72, which, as explained below, takes over the function of the pressure relief valve, which was a separate component in the previously known containers for the transport of liquids.
  • the container cap 20, 30, 50 and 70 has an additional cylinder section 22, 32, 52 and 72, the interior of which 26, 36, 56 and 76 via radial bores 24a-d, 34a d, 54a-d or 74a-d is connected to the external atmosphere.
  • a hose membrane 25 or 55 is clamped onto the cylinder section 22 or 52 similarly to a bicycle valve in such a way that the outlet openings of the radial bores 24a-d or 54a d are closed up to a certain maximum pressure inside the container.
  • the tubular membrane 25 or 55 in the region of the radial bores 24a-d or 54a-d is removed from the outer surface of the cylinder section 22 or 52 partially lifted off so that the gas under pressure can escape.
  • the bores 24a-d or 54a-d are closed again by the hose membrane 25 or 55.
  • the hose membrane 25 or 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 Protection against external mechanical stresses of the ventilation device shown in exemplary embodiments 4 and 5 is provided by 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 25 or 55 melts or burns, provided that it is made of a suitable material, so that if it is heated excessively, it is under high pressure Material in gaseous or vaporous or liquid state can escape from the container 10 and the container 10 is prevented from bursting.
  • an O-ring 35 or 75 with a circular cross section is provided instead of the hose membrane, which is flat in cross section, and which fits into an appropriately designed annular groove 38 or 78 in the cylinder section 32 or 72 of the cap 30 or 70 is used under internal stress.
  • This O-ring also closes the radial bores 34a-d and 74a-d in the same way and with the same advantageous properties as the hose membrane 25 or 55 of the embodiment according to FIGS. 1 and 2 or 5 and 6. Because of the greater material thickness if necessary, higher sealing forces and better sealing effects can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Cookers (AREA)
  • External Artificial Organs (AREA)
  • Arc Welding In General (AREA)
  • Sealing Of Jars (AREA)
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
DE4115610 1991-05-14
DE4115610A DE4115610A1 (de) 1991-01-15 1991-05-14 Be- und entlueftungsvorrichtung fuer behaelter

Publications (3)

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

Citations (2)

* 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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (2)

* 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

Also Published As

Publication number Publication date
EP0495374B1 (fr) 1996-01-17
ATE133131T1 (de) 1996-02-15
DE59205049D1 (de) 1996-02-29
ES2086010T3 (es) 1996-06-16
DE4115610A1 (de) 1992-07-16
EP0495374A3 (en) 1993-03-31

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