Method and apparatus for manufacturing a pipe from pipe...

Details Method and apparatus for manufacturing a pipe from pipe... Method and apparatus for manufacturing a pipe from pipe...

2007-09-28

2010-06-22

Crispino, Richard (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S293000, C156S296000, C156S303100, C156S308400, C138S142000, C138S151000, C138S158000, C138S162000

Reexamination Certificate

active

07740731

ABSTRACT:
A method for assembling a corrugated double-walled pipe section from pipe segments, having the steps of: providing an inner wall segment which is curved in circumferential direction and straight in longitudinal direction, providing an outer wall segment which is curved in circumferential direction and corrugated in longitudinal direction, connecting the inner wall segment to the concave side of said corrugated outer wall segment, providing a longitudinal profile at the longitudinally extending edges of the wall segment so as to provide a pipe segment, and connecting the adjoining longitudinal profiles of at least two of the pipe segments to each other.

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patent: 2006/0153640 (2006-07-01), Hofmann
patent: 1306541 (2003-05-01), None

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