Handle and supporting structure for an electric pressing iron having electronic temperature control

US4347428A · kind A · utility

Assignee

• ROWENTA WERKE GMBH · DE

Inventors

• Rainer Conrad · Hanau, DE
• Hubert Seifert · Heusenstamm, DE

Key dates

• Filing date: Aug 15, 1980
• Grant date: Aug 31, 1982
• Expiry date: Aug 15, 2000

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D23/24
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An electronic temperature control circuit for regulating the soleplate temperature of an electrically heated pressing iron is located in the handle and supporting structure of the iron. The electronic circuit includes a thyristor controlling energization of the soleplate heater and tending to emit heat. The thyristor is mounted to a heat dissipating cooling plate located within a leakproof cavity in the supporting structure remotely from the other electronic components of the control circuit tending to be adversely affected by heat. The cooling plate and thyristor are mounted on a detachable wall closing the cavity and shaped to provide a resting stand which allows the iron to be rested flatly on a horizontal surface without the soleplate contacting the surface.