(19) |
![](https://data.epo.org/publication-server/img/EPO_BL_WORD.jpg) |
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(11) |
EP 0 195 689 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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19.08.1987 Bulletin 1987/34 |
(43) |
Date of publication A2: |
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24.09.1986 Bulletin 1986/39 |
(22) |
Date of filing: 21.03.1986 |
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(84) |
Designated Contracting States: |
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AT BE CH DE FR IT LI LU NL SE |
(30) |
Priority: |
22.03.1985 GB 8507480
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(71) |
Applicant: ALUMASC-GRUNDY LIMITED |
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() |
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(72) |
Inventor: |
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- Gotch, Henry Grundy (Teddington) Ltd
()
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(54) |
A tamper resisting outlet fitting for a container |
(57) @" A tamper resistant fitting for a container, particularly but not essentially a
beverage container, comprises a plastics insert (10) which is located coaxially around
a part (9) forming a closure in the outlet (21) in the side wall (20) of a container.
The insert has a top flanged portion (15) which in use lies beneath the top plate
(1) of the closure with three equi-radially spaced lugs (13) projecting from the top
plate and provided for engagement with a tool through which rotational torque can
be applied so as to engage the screw threading (12) on the insert with a complementary
screw threading (25) on the outlet housing (21). When the closure is fully tightened
into the housing the lugs (13) are broken off, this then leaving only frictional engagement
between the outer peripheral surface of the closure (9) and the inner peripheral surface
of the insert (10). The frictional coefficient between the two surfaces is arranged
so that rotation will not occur with normal forces occurring in use, for example if
a liquid extracting coupling device is connected with the top plate (1), but the parts
will rotate at an applied value of rotational force which is less than that necessary
to unscrew the insert (10) from the housing (21).
In a further feature a thin plastics cap (25) is provided which incorporates fingers
(29) which deform during engagement with the housing (21) so that they lie beneath
a protuberance (24). When the closure is removed the fingers are deformed downwardly
and break off from the cap thereby providing evidence of tampering.
![](https://data.epo.org/publication-server/image?imagePath=1987/34/DOC/EPNWA3/EP86302124NWA3/srep0001)