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:
Dec. 11, 1990
Filed:
Dec. 20, 1989
Heinz Kelterborn, Karben, DE;
Heinz Schiebelhuth, Frankfurt, DE;
Braun Aktiengesellschaft, Kronberg, DE;
Abstract
A bread toaster comprising a comparator circuit with a sensor responsive to infrared radiation to determine the toasting time of an object to be toasted is extended by a control circuit. The latter detects automatically, whether the bread toaster is used for toasting an object to be toasted that is introduced through a loading and unloading opening into its toasting chamber (toasting operation) or for warming up a respective item which is placed on top of the loading and unloading opening (warming-up operation). The control circuit controls during the toasting operation the operating time of the bread toaster in dependence upon the toasting degree adjusted by the user, while it puts the bread toaster into operation for a fixed period of time during the warming-up operation.