Heatable appliance for personal use

US5320089A · kind A · utility

Assignee

• The Braun Corporation · DE

Inventors

• Norbert Schaefer · Frankfurt am Main, DE
• Jiri Sobota · Kronberg, DE
• Ahmet Firatli · Nordenstadt, DE
• Friedrich Henninger · Kelkheim, DE

Key dates

• Filing date: Jul 16, 1992
• Grant date: Jun 14, 1994
• Expiry date: Jul 16, 2012

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A45D1/02
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

The invention is directed to a heatable appliance for personal use, in particular a hair-care appliance, including a device for the flameless combustion of a fuel/air mixture and an associated activation device for initiating its flameless combustion, wherein the device includes a stable carrier structure 28 of a mass m.sub.T and a density s.sub.T. The carrier structure 28 is provided with a coating having a specific surface area O.sub.B (according to the BET method) and a mass m.sub.B, the coating carrying a catalytically active material of a mass m.sub.K. In order to ensure a high mechanical stability, a satisfactory activation ability and at the same time a high resistance to poisoning of the catalyst, the ratio ##EQU1## is set at values in the following range: EQU 0.3.times.10.sup.6 .ltoreq.delta.ltoreq.30.times.10.sup.6.