Process for preparing a hermetically sealed assembly

Adhesive bonding and miscellaneous chemical manufacture – Methods – Making electrical conductors of indefinite length

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Details

73 52, 138 99, 156 86, H01B 1306, H01B 1750

Patent

active

042683297

ABSTRACT:
In the connection and encapsulation of substrates such as cables by covering members such as heat-recoverable sleeves, typically provided with adhesive or mastic linings, the formation upon heating of a desired hermetic seal between the substrate and the covering member is checked by using a device which can detect the excess air pressure which, once the hermetic seal has been made, builds up within a space between the covering member and the substrate. Preferably this is done by means of a probe which passes between the covering member and the substrate into said space and which is connected to a pressure sensitive device such as a balloon or a manometer. After use, the probe, which is preferably made from a plastics material such as nylon, can be fused or deformed to ensure that the hermetic seal remains intact.

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