Plastic article or earthenware shaping or treating: apparatus – Preform assembly means and means for bonding of plural... – Reshaping means utilizing fluid pressure directly contacting...
Patent
1996-02-09
1999-11-02
Davis, Robert
Plastic article or earthenware shaping or treating: apparatus
Preform assembly means and means for bonding of plural...
Reshaping means utilizing fluid pressure directly contacting...
264269, 4253871, 425389, B29C 6336
Patent
active
059758783
ABSTRACT:
A liner for a lateral pipe which leads into a main pipe having at one end a collar for installation at the location where the lateral liner meets the main, the collar extending along the interior of the main seating against the opening of the lateral. The liner mounted in a launching device which includes an adjustable sealing arrangement is installed by everting the liner through an opening in the collar by means of fluid under pressure supplied through a pressure pipe in the launching device, the launcher held in position by the inflatable bladder and against the collar for sealing the lateral/main pipe junction.
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Bull, executor Miranda Jane
Wood, deceased Eric
Buchanan Lloyd G.
Davis Robert
Insituform (Netherlands) B.V.
Wolfson Michael I.
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