Apparatus for the manufacture of molecularly oriented plastic pi

Details Apparatus for the manufacture of molecularly oriented plastic pi Apparatus for the manufacture of molecularly oriented plastic pi

1985-05-07

1986-12-30

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including means to prepare parison

4253871, B29C 4908, B29C 5522

Patent

active

046326561

ABSTRACT:
An apparatus for manufacturing molecularly oriented plastics pipes includes a tubular mould of transverse dimensions equal to those of the pipe to be produced and equipped with a device for admitting a fluid under pressure into a region intended to receive the pipe section to be expanded, a member for closing and grasping one end of the pipe section of a tubular sleeve which opens into the mould by an end away from the closing and grasping member and the transverse dimensions of which correspond to those of the pipe section and a means for causing a controlled relative axial displacement of the sleeve in relation to the closing and grasping member in which the open end of the sleeve is equipped with an annular plunger incorporating a surface of a frustoconical shape extending towards the inner wall of the mould and widened out in a direction away from the closing and grasping member.
The apparatus makes it possible to produce pipe sections which are molecularly oriented in a perfectly reproducible manner and which are especially suitable for the construction of pipelines for fluids under pressure.

REFERENCES:
patent: 3910743 (1975-10-01), Farrell
patent: 3936260 (1976-02-01), Farrell
patent: 4363619 (1982-12-01), Farrell
patent: 4499045 (1985-02-01), Obsomer

Affiliated with

Also associated with

Rating

Apparatus for the manufacture of molecularly oriented plastic pi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for the manufacture of molecularly oriented plastic pi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for the manufacture of molecularly oriented plastic pi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1544979