Patent · US Active

Making an elongated product

US8453310B2 · kind B2 · utility

0Cited by

5References

12Claims

0Family size

Assignee

Uponer Innovation AB · SE

Inventors

Jyri Jarvenkyla · Viinijärvi, FI
Franz-Josef Riesselmann · Löhne, DE
Ralf Winterstein · Neuffen, DE
Reinhold Freermann · Ochtrup, DE
Lars Hoving · Hagfors, SE

Key dates

Filing date	Feb 2, 2007
Grant date	Jun 4, 2013
Priority date	—
Expiry date	Jun 4, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2958
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An elongated product is formed such that first a core is formed, the outer surface of the core being made of plastic. Thereafter, a tubular metal layer is extruded such that the layer is seamless. When the metal layer is extruded, a clearance (16) is allowed between the metal layer and the core. After the metal layer has cooled, the outer surface of the core is arranged against the inner surface of the metal layer. An adhesive action is arranged between the core and the metal layer and a permanent compressive force is arranged, which compressive force compresses the core and the metal layer together.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.