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.

Date of Patent:
Apr. 12, 2016

Filed:

Feb. 06, 2014
Applicant:

The Swatch Group Research and Development Ltd, Marin, CH;

Inventors:

Michel Willemin, Preles, CH;

Jean-Claude Martin, Montmollin, CH;

Christophe Germiquet, Preles, CH;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 3/34 (2006.01); G01M 3/32 (2006.01); G04D 7/00 (2006.01); G04G 21/02 (2010.01); G04B 37/02 (2006.01);
U.S. Cl.
CPC ...
G01M 3/329 (2013.01); G04B 37/02 (2013.01); G04D 7/007 (2013.01); G04G 21/02 (2013.01);
Abstract

The electronic device () is provided with an automatic leak detection means, notably for a gas leak, in the case () of the device. The automatic leak detection means includes an internal pressure sensor (), an external pressure sensor () and a calculation unit () connected to the internal pressure sensor and to the external pressure sensor. The calculation unit, which is a microcontroller, and the internal pressure sensor are arranged inside the case, whereas the external pressure sensor is arranged on an external surface of the case. The microcontroller () checks, based on measurements performed by the pressure sensors over time, whether the pressure variation inside the case is different from the pressure variation outside the case to determine whether or not the case has a sufficient degree of sealing.


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