Hermetic closure

Details Hermetic closure Hermetic closure

1975-09-24

1977-01-11

Whitby, Edward G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

29451, 29453, 29525, 156 734, 215358, 220234, 220307, B32B 3120

Patent

active

040025160

ABSTRACT:
A hermetic closure cap of resilient thermoplastic material constructed so as to be removably securable in an aperture made in a rigid sheet.
This cap is retained by a normally non-deformable but laterally retractable part pressing against the edges of the rigid sheet defining the aperture and which cap is maintained in position before opening by a removable locking element which is inserted into a slot in the cap that is of similar cross-section to that of the locking element.
The sealing cap thus designed can be used, for example, in cans containing a beverage under pressure.

REFERENCES:
patent: 3726432 (1973-04-01), Gentile
patent: 3804287 (1974-04-01), Balocca et al.
patent: 3824138 (1974-07-01), Karobath et al.

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