Method and device for manufacturing biaxially oriented tubing from thermoplastic material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 6, 1998
Grant Date -
N/A
app pub date -
Nov 22, 1996
filing date -
Mar 22, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method and devices for manufacturing biaxially oriented tubing from thermoplastic material. The method includes forcing the tube over a mandrel at an orientation temperature of the plastic material, which mandrel includes an expansion part which produces expansion in the circumferential direction of the tube. The forcing over the mandrel is achieved by exerting a pushing force on the tube upstream of the expansion part of the mandrel by a pushing device acting upon the outside of the tube, and by exerting a pulling force on the tube downstream of the mandrel. The pushing device acts upon the tube at a distance upstream of the mandrel, and the tube is supported between the place where said pushing device acts and the expansion part of the mandrel.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully