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:
Mar. 31, 2015
Filed:
Jan. 17, 2012
Applicant:
Jan Christian Langsdorf, Oberursel, DE;
Inventor:
Jan Christian Langsdorf, Oberursel, DE;
Assignee:
Braun GmbH, Kronberg, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F25B 21/02 (2006.01); H01L 35/00 (2006.01);
U.S. Cl.
CPC ...
H01L 35/00 (2013.01);
Abstract
A method with the following steps is described for testing a Peltier element: applying a voltage to the Peltier element; switching off the voltage at the end of a defined period of time; measuring the voltage at the Peltier element; and comparing the measured voltage with a reference value. Furthermore, a small electrical appliance, such as an electric shaver, with a Peltier element is described, which small electrical appliance has a safety device which ensures that a malfunction of the Peltier element cannot result in danger to the user.