Method of forming a headed thermoplastic tube

Details Method of forming a headed thermoplastic tube Method of forming a headed thermoplastic tube

1998-11-25

2000-10-24

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Utilizing heat releasable stress to reshape solid workpiece

264296, 264310, 264322, 264519, 425393, 425402, 425403, B29C 4302, B29C 5700, B29C 6108

Patent

active

061362476

ABSTRACT:
A headed thermoplastic tube is formed solely from a thermoplastic extruded, stretched, sleeve by positioning the sleeve over a forming mandrel so the sleeve has an exposed portion. While rotating the forming mandrel which holds the sleeve, the inner surface of the exposed portion of the sleeve is heated above the glass transition temperature of the thermoplastic material to render the inner surface molten while the outer surface provides support for the exposed portion of the sleeve. The heated exposed portion is then shaped into a conical shape, such as by heating the outer surface, the rotation of the mandrel is stopped and pressure applied to the conical shaped exposed portion to form a headed thermoplastic tube. The headed tubes produced have a body portion, shoulder portion and neck portion, without any seams, all of which are formed from the starting thermoplastic extruded, stretched sleeve.

REFERENCES:
patent: 3047910 (1962-08-01), Downs
patent: 3226464 (1965-12-01), Saumsiegle et al.
patent: 4032281 (1977-06-01), Rakovsky
patent: 4123312 (1978-10-01), Schmid et al.
patent: 4424182 (1984-01-01), Cerny
patent: 5069856 (1991-12-01), Holoubek et al.
patent: 5322658 (1994-06-01), Holoubek et al.

Affiliated with

Also associated with

Rating

Method of forming a headed thermoplastic tube 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 of forming a headed thermoplastic tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming a headed thermoplastic tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1960360