Patent · US Active

Sealing roll

US9422074B2 · kind B2 · utility

0Cited by

9References

11Claims

0Family size

Assignee

UHLMANN PAC-SYSTEME GMBH & CO. KG · DE

Inventors

Detlev Gertitschke · Laupheim, DE
Robert Lehmann · Leipzig, DE
Juergen Liebhardt · Laupheim, DE

Key dates

Filing date	May 16, 2013
Grant date	Aug 23, 2016
Priority date	—
Expiry date	Feb 6, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C51/42
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The sealing roll includes a stationary internal shaft and an inductively heatable roll jacket supported with freedom to rotate around the shaft. A plurality of induction coils is wound around the shaft over ferrites, which are open to the outside. Cables for the induction coils are laid through a cable conduit in the shaft for connection to an external induction generator. A water cooling channel for indirectly cooling the induction coils is also arranged in the shaft. A cavity is formed in at least an axial subsection of the sealing roll between the roll jacket and the shaft, and at least part of a temperature detection device is arranged in the cavity or adjacent to the cavity so that an IR temperature sensor receives radiation emitted by the roll jacket and thus detects a temperature of the roll jacket.

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