Apparatus for welding tubular components of thermoplastic materi

Details Apparatus for welding tubular components of thermoplastic materi Apparatus for welding tubular components of thermoplastic materi

1988-08-29

1990-05-22

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

Preform assembly means and means for bonding of plural...

With treatment means other than assembling, bonding, shaping...

156158, 1563042, 1563046, 156499, 156503, 264248, 264314, 425521, 425442, B29C 6514, B28B 2196

Patent

active

049276425

ABSTRACT:
An apparatus for welding tubular components of thermoplastic material. The apparatus includes a heating device for heating the ends of the tubular components to be welded together until the melting range of the thermoplastic material is reached. Two outer support rings which are slid toward each other after the thermoplastic material has melted and an expandable inner support member ensure that welding pressure is built up, so that a welded connection can be obtained which is strong and free of welding beads.

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patent: 4602974 (1986-07-01), Wood et al.
patent: 4694335 (1987-09-01), Lyall
patent: 4801349 (1989-01-01), Dommer et al.

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