Induction connecting sleeve for connecting weldable thermoplastic elements by means of fusion
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United States of America Patent
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Dec 11, 2012
Issued Date -
N/A
app pub date -
Oct 1, 2009
filing date -
Oct 2, 2008
priority date (Note) -
Expired
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Abstract
An induction connecting sleeve for connecting weldable thermoplastic elements by means of fusion, with at least two sockets for the insertion of connection sections of the thermoplastic elements to be connected, and with an induction heating element embedded in the sockets, with operative sections of the induction heating element surrounded completely by a weldable thermoplastic material, and with the induction heating element arranged coaxially to the sockets. The induction heating element may be manufactured of metallic material with spring characteristics and to embed it under pre-tension in the thermoplastic material of the sockets. When the induction heating element is heated and the thermoplastic material of the socket of the induction connecting sleeve is plasticized, the induction heating element relaxes which causes radial pressure to build towards the connection section.
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