Door lock logic

Patent metadata

Field	Value
Publication number	US-9677771-B2
Application number	US-201414468365-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Aug 26, 2014
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

The present invention provides an oven appliance and for operation of an oven appliance. The oven appliance and a method for operating the oven appliance include features such that the door of the oven appliance remains locked unless a cooking cycle is initiated or a door unlocking element is utilized.

First claim

What is claimed is:

1. An oven appliance, comprising:
a cabinet defining an opening at a front portion of the cabinet, the cabinet also defining a cooking chamber configured for receipt of food items for cooking;
a door mounted to the cabinet at the opening of the cabinet, the door being selectively adjustable between an open position and a closed position to permit selective access to the cooking chamber through the opening of the cabinet;
a door lock;
a door unlocking element;
a heating element configured to heat the cooking chamber; and
a controller in operative communication with the door lock and the door unlocking element, the controller configured for
determining whether a cooking cycle of the oven appliance has been initiated and, if so, then
activating the door lock to unlock the door; and

determining whether the cooking cycle has been terminated and, if so, then
activating the door lock to lock the door at a predetermined time t 1 after the cooking cycle has been terminated,

wherein the door lock is an electromechanical lock.

2. The oven appliance of claim 1 , wherein the controller is further configured for
determining, if a cooking cycle has not been initiated, whether the door unlocking element has been utilized and, if so, then
activating the door lock to unlock the door;

determining whether a cooking cycle has been initiated and, if so, then
determining whether the cooking cycle has been terminated and, if so, then
activating the door lock to lock the door at a predetermined time t 1 after the cooking cycle has been terminated.

3. The oven appliance of claim 2 , wherein the controller s further configured for
activating the door lock to lock the door at a predetermined time t 2 after the door has been unlocked if a cooking cycle is not initiated while the door is unlocked.

4. The oven appliance of claim 1 , wherein the door lock is positioned at the front portion of the cabinet and engages the door.

5. The oven appliance of claim 1 , wherein the door lock is positioned on the door and engages the cabinet of the oven appliance at the front portion of the cabinet.

6. The oven appliance of claim 1 , wherein the door unlocking element comprises a button positioned on an user interface of the oven appliance.

7. An oven appliance, comprising:
a cabinet defining an opening at a front portion of the cabinet, the cabinet also defining a cooking chamber configured for receipt of food items for cooking;
a door mounted to the cabinet at the opening of the cabinet, the door being selectively adjustable between an open position and a dosed position to permit selective access to the cooking chamber through the opening of the cabinet;
a door lock;
a door unlocking element;
a heating element configured to heat the cooking chamber; and
a controller in operative communication with the door lock and the door unlocking element, the controller configured for
determining whether the door unlocking element has been utilized and, if so, then activating the door lock to unlock the door;
determining whether a cooking cycle of the oven appliance has been initiated and, if so, then
determining whether the cooking cycle has been terminated and, if so, then
 activating the door lock to lock the door of at a predetermined time t 1 after the cooking cycle has been terminated; and

activating the door lock to lock the door at a predetermined time t 2 after the door has been unlocked if a cooking cycle is not initiated while the door is unlocked.

8. The oven appliance of claim 7 , wherein the controller is further configured for
determining, if the door unlocking element has not been utilized, whether a cooking cycle of the oven appliance has been initiated and, if so, then
activating the door lock to unlock the door;

determining whether the cooking cycle has been terminated and, if so, then
activating the door lock to lock the door at a predetermined time t 1 after the cooking cycle has been terminated.

9. The oven appliance of claim 7 , wherein the door lock is an electromechanical lock.

10. The oven appliance of claim 7 , wherein the door lock is positioned at the front portion of the cabinet and engages the door.

11. The oven appliance of claim 7 , wherein the door lock is positioned on the door and engages the cabinet of the oven appliance at the front portion of the cabinet.

12. The oven appliance of claim 7 , wherein the door unlocking element comprises a button positioned on an user interface of the oven appliance.

13. A method for operating an oven appliance, the oven appliance having a door, a door lock, and a door unlocking element, the method comprising:
determining whether a cooking cycle of the oven appliance has been initiated and, if so, then activating the door lock to unlock the door; and
determining whether the cooking cycle has been terminated and, if so, then
activating the door lock to lock the door at a predetermined time t 1 after the cooking cycle has been terminated,
wherein the door remains locked if a cooking cycle has not been initiated when determining whether a cooking cycle has been initiated.

14. The method of claim 13 , further comprising:
determining, if a cooking cycle has not been initiated, whether the door unlocking element has been utilized and, if so, then
activating the door lock to unlock the door;

determining whether a cooking cycle has been initiated and, if so, then
determining whether the cooking cycle has been terminated and, if so, then
activating the door lock to lock the door at a predetermined time t 1 after the cooking cycle has been terminated.

15. The method of claim 14 , further comprising:
activating the door lock to lock the door at a predetermined time t 2 after the door has been unlocked if a cooking cycle is not initiated while the door is unlocked.

Assignees

• Gen Electric
• Haier Us Appliance Solutions Inc

Inventors

• Armstrong James Lee
• Wiseman Joshua Stephen

Classifications

• F24C15/022 Primary

  Latches · CPC title

• F24C7/085

  on baking ovens · CPC title

• H04L67/51

  Discovery or management thereof, e.g. service location protocol [SLP] or web services · CPC title

• H04L12/2814

  Exchanging control software or macros for controlling appliance services in a home automation network (arrangements for maintenance or administration involving configuration of the network and network elements H04L41/08) · CPC title

• H04L12/6418

  Hybrid transport · CPC title