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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9821514 B1

PDFFull Text
Date of Patent:
Nov. 21, 2017

Filed:

Nov. 19, 2013

Method and apparatus in the manufacture of a spirally wound and welded tube

Applicant:

Uponor Infra Oy, Vantaa, FI;

Inventors:

Christian Glasberg, Vaasa, FI;

Kari Karjalainen, Vaasa, FI;

Sven Sjöberg, Vaasa, FI;

Assignee:

UPONOR INFRA OY, Vantaa, FI;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Carson Gross

Int. Cl.
CPC ...
B29C 53/82 (2006.01); B29C 65/00 (2006.01); B29C 53/78 (2006.01); F16L 9/16 (2006.01); F16L 9/12 (2006.01); B29C 65/40 (2006.01); B29C 47/00 (2006.01); B29K 101/12 (2006.01); B29L 24/00 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 66/4329 (2013.01); B29C 47/0023 (2013.01); B29C 53/78 (2013.01); B29C 65/40 (2013.01); B29C 66/1122 (2013.01); B29C 66/232 (2013.01); B29C 66/345 (2013.01); B29C 66/524 (2013.01); B29C 66/63 (2013.01); B29C 66/73921 (2013.01); B29C 66/81465 (2013.01); B29C 66/83411 (2013.01); B29C 66/9221 (2013.01); B29C 66/9261 (2013.01); B29C 66/92431 (2013.01); B29C 66/961 (2013.01); F16L 9/12 (2013.01); F16L 9/16 (2013.01); B29C 53/82 (2013.01); B29C 53/827 (2013.01); B29K 2101/12 (2013.01); B29L 2023/22 (2013.01); B29L 2024/00 (2013.01);
Abstract

A method and apparatus in the manufacture of a spirally wound and welded tube is disclosed. A thermoplastic profile is slid along a path on a slider arranged in an axial direction of the tube and defining a cylindrically shaped winding surface with a diameter corresponding to the inner diameter of the tube to be manufactured. The profile is directed along a spiral path towards a previous turn of said profile by means of radial rollers spaced along said spiral path by adjusting the position of the rollers: Opposite edges of said profile turns are welded together by providing an extruded welding mass between said profile turns. The welded tube is fed from the welding station by means the rollers by sliding it onto a rotating support.

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