Method and apparatus for the continuous manufacture of a compoun

Details Method and apparatus for the continuous manufacture of a compoun Method and apparatus for the continuous manufacture of a compoun

1993-03-09

1994-06-14

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264 403, 264 407, 264508, 264515, 264173, 4251331, 425336, 425393, 425396, 425140, 425532, 425462, B29C 4904

Patent

active

053207971

ABSTRACT:
For the continuous manufacture of a compound pipe with a pipe socket including a smooth internal tube and an external tube provided with transverse grooves and welded together with the latter, an external tube and an internal tube are extruded, the latter into the external tube. While the normal compound pipe is manufactured, gas is blown at a slight overpressure into the space beteen the external tube and the internal tube. When the pipe socket is produced, this space is vented so that a full-surface bearing of the internal tube against the external tube is achieved, to which end the internal tube is acted upon from its inside by gas under pressure.

REFERENCES:
patent: 3743456 (1973-07-01), Cini
patent: 3976414 (1976-08-01), Hegler et al.
patent: 3996323 (1976-12-01), Hegler et al.
patent: 4145387 (1979-03-01), Hegler et al.
patent: 4492551 (1985-01-01), Hegler et al.
patent: 4500284 (1985-02-01), Lupke
patent: 4710337 (1987-12-01), Nordstrom
patent: 4770618 (1988-09-01), Lupke
patent: 4846660 (1989-07-01), Drossbach
patent: 4865797 (1989-09-01), Jarvenkyla 264508

Affiliated with

Also associated with

Rating

Method and apparatus for the continuous manufacture of a compoun does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for the continuous manufacture of a compoun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for the continuous manufacture of a compoun will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1247220