The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 2004
Filed:
Mar. 06, 2002
Helmut Prager, Gross-Gerau, DE;
Other;
Abstract
Device for detecting, monitoring and controlling the operating status of an electric iron which is provided with at least one electric heating circuit having a heating element and a first power switch of the iron connected in series to the heating element. The device includes a control unit being provided as an integrated circuit, a second power switch which is controlled by the control unit depending on the operating status of the electric iron and which is connected in series with the electric heating circuit. An indicator unit having at least one indicator element indicates the heating status of the electric iron. A low voltage power supply for energizing at least one of the control unit, indicating unit, and second power switch. A low-impedance measuring resistance is connected in series with the second power switch, and provides an indirect detection means of the switching status of both power switches. The device further includes means for supplying a voltage drop arising at the measuring resistance as an input signal to the control unit for evaluating the input signal, and means for supplying a control signal to the indicator element for indicating the present heating status of the electric iron.