IP Library › Granted Patent US 11,591,823
Granted Patent B2
US 11,591,823 · App. 16/604,008 · Granted Feb 28, 2023

Door locking device, particularly for electrical household appliances

Inventors: Fabrizio Promutico (Alatri, IT); Massimo Nardini (Alatri, IT); Marcello Pollastri (Rome, IT)
Assignee: BITRON S.p.A.
E05B47/0603D06F37/42E05B47/0006E05B47/0038E05B65/00D06F34/20D06F2103/40E05B2047/0007E05B2047/0051E05B2047/0069E05B2047/0076E05Y2201/462E05Y2201/626E05Y2900/312
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,591,823
App. No.
16/604,008
Granted
Feb 28, 2023
Kind
B2
Abstract

A door-locking device ( 1 ) including an actuator ( 20 ); a locking pin ( 11 ) controllable by the actuator ( 20 ) and adapted to cooperate with a movable latching slider ( 7 ) to lock a door of an electrical household appliance, the locking pin ( 11 ) being movable between a rest position, wherein the locking pin allows the latching slider ( 7 ) to move, and a lock position, wherein the locking pin prevents the latching slider ( 7 ) from moving; a detection switch ( 45 ) able to switch between an open position and a closed position following a movement of the latching slider ( 7 ), the detection switch ( 45 ) including a fixed contact element ( 45 e ) and a movable contact element ( 45 c ) resiliently stressed in closure towards the fixed contact element ( 45 e ), and a movable control member ( 46 ) interacting with the movable contact ( 45 c ). The control member ( 46 ) is also movable by a movement of the locking pin ( 11 ).

Claims (11)

1. A door-locking device particularly for electrical household appliances, comprising

an actuator;

a locking pin controllable by the actuator and adapted to cooperate with a movable latching slider to lock a door of an electrical household appliance, said locking pin being movable between a rest position, wherein the locking pin allows the latching slider to move, and a lock position, wherein the locking pin prevents said latching slider from moving; and

a detection switch able to switch between an open position and a closed position following a movement of the latching slider, said detection switch comprising a fixed contact element and a movable contact element resiliently stressed in closure towards the fixed contact element, and a movable control member interacting with the movable contact element;

wherein the control member is also movable by effect of a movement of the locking pin, and

wherein the control member is movable along a direction parallel to the direction of movement of the latching slider due to a movement of the locking pin.

2. A device according to claim 1 , wherein the movable control member comprises a follower portion adapted to engage a cam formed on the latching slider, such that the control member is movable between a first position, corresponding to said open position, wherein the control member holds the movable contact element spaced apart from the fixed contact element, and a second position, corresponding to said closed position, wherein the control member allows the movable contact element to come into contact with the fixed contact element.

3. A device according to claim 2 , wherein the control member is rotatable between the first position wherein the follower end of the control member holds the movable contact element spaced from the fixed contact element, and the second position wherein the follower end of the control member allows the movable contact element to come into contact with the fixed contact element.

4. A device according to claim 3 , wherein the control member has a pin end around which the control member is able to rotate.

5. A device according to claim 4 , wherein said pin end is coupled to a cam formed on the locking pin.

6. A device according to claim 5 , wherein said cam faces the pin end of the control member.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2025
From: BITRON S.P.A.
To: ELBI INTERNATIONAL S.P.A.
Reel/Frame 072271/0795 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: PROMUTICO, FABRIZIO; NARDINI, MASSIMO; POLLASTRI, MARCELLO
To: BITRON S.P.A.
Reel/Frame 051408/0469 →
Priority Claims (1)
IT 102017000039100 · Apr 10, 2017 · national
Continuity (1)
Related Publication 20210102408A1 · Apr 8, 2021