EP0195689A2 - Garniture inviolable pour l'orifice d'un récipient - Google Patents

Garniture inviolable pour l'orifice d'un récipient Download PDF

Info

Publication number
EP0195689A2
EP0195689A2 EP86302124A EP86302124A EP0195689A2 EP 0195689 A2 EP0195689 A2 EP 0195689A2 EP 86302124 A EP86302124 A EP 86302124A EP 86302124 A EP86302124 A EP 86302124A EP 0195689 A2 EP0195689 A2 EP 0195689A2
Authority
EP
European Patent Office
Prior art keywords
insert
closure
fitting
outlet
accordance
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Withdrawn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
EP86302124A
Other languages
German (de)
English (en)
Other versions
EP0195689A3 (fr
Inventor
Henry Grundy Gotch (Teddington) Ltd
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.)
Alumasc Grundy Ltd
Original Assignee
Grundy Teddington Ltd
Alumasc Grundy Ltd
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 Grundy Teddington Ltd, Alumasc Grundy Ltd filed Critical Grundy Teddington Ltd
Publication of EP0195689A2 publication Critical patent/EP0195689A2/fr
Publication of EP0195689A3 publication Critical patent/EP0195689A3/fr
Withdrawn legal-status Critical Current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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/08—Threaded or like closure members secured by rotation; Bushes therefor

Definitions

  • This invention relates to a tamper resisting fitting for a container such as the liquid extractor tube outlet of a beverage cask or keg.
  • a cask or keg of metal, or possibly other material is provided with an upstanding bung hole outlet which incorporates an extractor tube assembly extending to the bottom of the keg and with valve means enabling liquid to be extracted from the cask and additionally to permit a gas to be introduced into the cask to effect displacement of the liquid.
  • valve means enabling liquid to be extracted from the cask and additionally to permit a gas to be introduced into the cask to effect displacement of the liquid.
  • it is necessary to make provision for the replacement of the valve and extractor tube assembly and generally this is achieved by means of a screw threaded connection between the top of the assembly and the upraised bung hole outlet of the cask. It is also necessary however to provide for security so as to prevent unauthorised removal of the top fitting and pilfering or adulteration of the contents of the cask
  • a tamper resisting fitting for a container in which the container has an outlet detachably engagable by a closure, wherein an insert is interposed between the outlet and closure, the insert having parts to engage the outlet to secure the fitting, the closure being capable of rotating with respect to the insert under application of a force which is less than the force required to disengage the insert from the outlet.
  • a tamper resisting fitting for a container such as an extractor tube head to cask fitting wherein the extractor tube head has a threaded portion to engage a complementary threading on the bung hole outlet of the cask with the threaded portion comprising an insert coaxially located about the top end of the extractor tube head and with a threading engaging the internal screw threading of the outlet, the insert including one or more frangible portions which engage with the extractor tube head to enable the head and insert to be rotated together and thus threadably engaged and tightened into the bung hole outlet, the frangible portion or portions thereafter being broken off, the insert frictionallly engaging the extractor head and arranged so that the head will not rotate relative to the insert under normal conditions of use but will rotate when applied rotational force exceeds a predetermined value, said value being less than the force required to unscrew the insert from the bung hole housing.
  • the insert is of a synthetic plastics material providing an additional advantage of electrically insulating the extractor head from the cask.
  • the complete extractor tube head fitting with the insert can be screwed into the bung hole housing and tightened to the required torque loading'by means of a suitable tool engaging lugs or detents or the like provided on the insert.
  • the lugs may either automatically break off or alternatively they can be snapped off thereby preventing any subsequent direct action being exerted on the insert through the lugs to unscrew same.
  • the insert is otherwise freely rotatable with respect to the extractor head but with a sufficient degree of friction existing between the two components, either by way of interference fit or by appropriately treating the mating surfaces, so that under normal use when the valved coupling head unit is fitted and rotated to lock same, the extractor tube-head will not rotate relative to the insert.
  • a suitable special tool means can be provided which may engage formations on the insert to enable same to be rotated directly along with the extractor head thereby to unscrew same from the cask.
  • the necessary degree of friction to achieve the intended result can be obtained by appropriate dimensioning of the mating surface areas, by shot blasting the plastics to increase friction or by other suitable means.
  • Removal in order to replace the extractor head can be achieved by means of a suitable clamping tool which locks the insert to the top of the extractor head which may then be unscrewed together with the insert.
  • the annular insert is of a plastics material and has a longitudinal slit enabling same to be slid up over the extractor head to lie beneath a top plate thereof, the plastic insert having three lugs which extend laterally through recesses provided in the top plate, the lugs enabling a suitable tool to be engaged with the head and insert so as to rotate same to tighten the screw threads to the appropriate torque whereupon the lugs can either be snapped off manually or else arranged so that they break at the required torque loading.
  • the plastic insert can then be rotated otherwise than by using a special tool or machine.
  • the threaded insert could be arranged so that it will only be rotatable in one direction by using a unidirectional drive means.
  • the insert can be torqued up to the required loading but cannot thereafter be moved-in the opposite direction other than with some specially designed drive means.
  • an extractor tube head fitting which is rotatable with respect to a seperate threaded insert but with an appropriately arranged degree of friction between the two parts when assembled, the insert being capable of being tightened to secure the parts with the degree of friction being such that relative slippage occurs at a torque loading which is below that required to undo screw thread.
  • an extractor tube head fitting (not shown in detail) includes a top plate 1 which has three flat sides 2 to receive a so-called "tri-lobe" fitting.
  • a coupling head is placed over the top plate with suitable formations passing over the flats 2 and the head is then rotated so that the formations engage beneath the curved wing parts 3 of the head to secure same.
  • the head when rotated fully home provides a firm connection and enables the valved ports located in the central aperture of the plate 4 to be opened.
  • the coupling head itself can be used to forceably rotate the top'plate and thus to unscrew it from the cask giving access to the contents.
  • Figures 3 and 4 show a valve body pressing which engages with the top plate with the end 5 of the pressing being positioned to lie within the annular seating 6 of the top plate ( Figure 2).
  • the lower skirt portion of the valve body has a deformed zone 7 forming a central aperture 8 which embraces the top end of the extractor tube.
  • Suitable valve means are housed in the top of the body, these being customary and therefore not shown in the drawings.
  • the tapering top end 9 of the body pressing is arranged to receive a plastics insert 10 (of Delrin material RTM) ( Figures 5 and 6) which insert has a longitudinal slot in its wall enabling it to be sprung open sufficiently to fit coaxially around the portion 9 of the valve body and thereafter to bear by its upper surface 11 against the top plate.
  • the insert 10 has an external threading 12 which engages in use a complementary threading on the inner periphery of the bung hole outlet housing of a cask or keg.
  • the insert also includes a top flange 15- which seats against the lower surface of the top plate with this flange having three radially extending lugs 13. These lugs are joined to the top flange 15 by a connecting bridge 14 which enables them to be broken off in a relatively easy manner.
  • FIGS 7 and 8 of the drawings show the three components described, that is the top plate, valve body pressing and insert, assembled together and ready for insertion into the bung hole outlet of a cask.
  • the valve body pressing 9 is connected to the top plate 10 by means of a weld 16 and the threaded insert 10 is slid over the body 9 from the lower end thereof and by virtue of the longitudinal slot (not shown) allowing radial expansion.
  • the insert 10 bears-by the upper surface flange 15 against the top plate 1 and the lugs 13 project outwardly from the flat side 2 of the top plate.
  • the whole assembly may be inserted into the bung hole housing and the top plate 2, together with insert 10, is rotated, using a means engaging the lugs 13 so as to tighten the thread to the required torque loading in the hung hole housing.
  • the lugs 13 are bent downwards and thereby snapped off alone the line 14.
  • the tightening in the housing causes the insert to be firmly pressed against the valve body 9 so as to frictionally engage same.
  • This frictional engagement is more than adequate to ensure that the top plate 1 will not rotate during normal use when the coupling head is fitted hut will slip if excessive force is applied to the coupling head 2 in an attempt to unscrew the fitting from the bung hole housing.
  • the body 9 together with the top plate 1 will rotate relatively to the insert which will remain firmly secured within the housing preventing removal.
  • a suitable tool can be engaged laterally between the flange 15 of the insert and the top plate 2 in order to relatively secure these two parts together which can then be rotated so as to unscrew the complete fitting.
  • FIGS. 9 to 12 of the accompanying drawings show a construction of fitting which is similar to that already described and parts of a like function have been identified with the same reference numerals for convenience of understanding.
  • Figure 9 of the drawings this, in essence,corresponds to Figure 7 already described but in this drawing a portion of the top of a cask 20 is shown which carries the upstanding bung hole outlet collar 21 secured by means of a fillet weld 22.
  • the bung hole outlet 21 includes an internal screw threading 23 which engages the external screw threading 12 on the insert 10.
  • the upper portion of the bung hole outlet incorporates an annular protuberance 24.
  • This embodiment also includes a generally cup shaped plastics moulding of thin cross section 25 which locates over the top of the insert 10, this moulding being provided to make evident any attempt at tampering with the fitting, for example by unscrewing same.
  • the tamper evident portion 25 has a top surface 26 which engages in a rebated portion of the top surface 15 of the insert 10 whereby when fitted an overall flush top surface is provided in the combination of the insert 10 and tamper evident ring 25.
  • the ring 25 includes three equispaced apertures 27 which are provided in the top surface 26 and skirt portion 28. The side of the apertures lying in the skirt 28 have fingers 29 which project inwardly. Each aperture as shown includes four such fingers.
  • the apertures 27 allow the lugs 13 of the insert to project therethrough and further also permit a tightening tool or fitment to engage with the lugs as previously described.
  • the tamper evident ring 25 is made as thin as possible so that it can be accommodated between the insert and the top plate 1 of the fitting. The operation of the tamper evident ring is as follows:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP86302124A 1985-03-22 1986-03-21 Garniture inviolable pour l'orifice d'un récipient Withdrawn EP0195689A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8507480 1985-03-22
GB858507480A GB8507480D0 (en) 1985-03-22 1985-03-22 Security outlet fitting

Publications (2)

Publication Number Publication Date
EP0195689A2 true EP0195689A2 (fr) 1986-09-24
EP0195689A3 EP0195689A3 (fr) 1987-08-19

Family

ID=10576455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302124A Withdrawn EP0195689A3 (fr) 1985-03-22 1986-03-21 Garniture inviolable pour l'orifice d'un récipient

Country Status (3)

Country Link
EP (1) EP0195689A3 (fr)
ES (1) ES296578Y (fr)
GB (2) GB8507480D0 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164277A (en) * 1963-08-20 1965-01-05 Oscar W Reading Safety bottle cap
US3396864A (en) * 1967-03-01 1968-08-13 Frederick E. Jones Safety cap structure
US3843008A (en) * 1973-05-24 1974-10-22 Baisch J Safety closures for containers
GB2075476B (en) * 1980-04-22 1983-12-07 Alumasc Ltd Valve-type closure for containers
GB2117071A (en) * 1982-03-22 1983-10-05 Leer Koninklijke Emballage Valve unit for liquid container
GB2135980A (en) * 1983-01-25 1984-09-12 Frank Gregory Pinkney Container safety cap
GB8312691D0 (en) * 1983-05-09 1983-06-15 Johnsen Jorgensen Plastics Ltd Tamper-resistant turn-lock closure

Also Published As

Publication number Publication date
EP0195689A3 (fr) 1987-08-19
GB2172584A (en) 1986-09-24
GB8507480D0 (en) 1985-05-01
ES296578U (es) 1987-12-01
ES296578Y (es) 1988-05-16
GB8607054D0 (en) 1986-04-30

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Inventor name: GOTCH, HENRYGRUNDY (TEDDINGTON) LTD