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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.:

US 11459793 B1

PDFFull Text
Date of Patent:
Oct. 04, 2022

Filed:

Jun. 21, 2019

Method for controlling the operation of a door-lock device and control system thereof

Applicant:

Bitron S.p.a., Turin, IT;

Inventors:

Fabrizio Promutico, Turin, IT;

Enrico Adiutori, Turin, IT;

Antonino Sidari, Turin, IT;

Assignee:

BITRON S.P.A., Turin, IT;

Attorneys:

Innovation Capital Law Group, LLP

Vic Lin

Primary Examiner:

Jason Y Ko

Int. Cl.
CPC ...
D06F 34/20 (2020.01); E05B 17/22 (2006.01); G05B 9/02 (2006.01); A47L 15/00 (2006.01); D06F 37/28 (2006.01); D06F 39/14 (2006.01); G07C 9/00 (2020.01); D06F 37/42 (2006.01); E05B 47/00 (2006.01); D06F 103/40 (2020.01); D06F 103/44 (2020.01);
U.S. Cl.
CPC ...
E05B 17/22 (2013.01); A47L 15/0049 (2013.01); D06F 34/20 (2020.02); D06F 37/28 (2013.01); D06F 39/14 (2013.01); G05B 9/02 (2013.01); G07C 9/00174 (2013.01); G07C 9/00571 (2013.01); D06F 37/42 (2013.01); D06F 2103/40 (2020.02); D06F 2103/44 (2020.02); E05B 2047/0067 (2013.01); E05B 2047/0072 (2013.01); G07C 2009/00634 (2013.01);
Abstract

The present disclosure concerns a method for detecting the status and failure of a door-lock device of a household appliance door, having two terminals and operating through different states. The method comprises the steps of applying a first control signal with a polarization, detecting the impedance at the terminals, and applying a second control signal, having opposite polarization to the first control signal, detecting the impedance to the ends of the terminals. In a reference table, the impedances at the ends of the terminals for each of the door-lock device states are provided. The method also compares the impedance values measured at the ends of said terminals with those of the comparative table, so as to detect the states of the door-lock device and any faults of the door-lock device according to the detected impedance values.

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