Patent · US Expired

High temperature magnetic stirrer

US4568192A · kind A · utility

43Cited by

7References

6Claims

0Family size

Assignee

Vereinigte Aluminum - Werke Aktiengesellschaft · DE

Inventors

Gerhard Kudermann · Bornheim, DE
Karl-Heinz Blaufuss · Bad Honnef, DE

Key dates

Filing date	Mar 12, 1984
Grant date	Feb 4, 1986
Priority date	—
Expiry date	Mar 12, 2004

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D11/02
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed is a high temperature magnetic stirrer including a permanent magnet positioned underneath a frame supported platform. The magnet is positioned to be rotatable in a plane parallel to the platform. A spiral shaped heating element mounted to the frame is positioned above the platform and centered above the rotatable magnet. The spiral has a diameter sufficient to enclose a portion of a crucible. Means are provided to supply the heating element with electricity, and additional means are secured to the frame to rotate the magnet.

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