Refrigerator with automatic liquid dispenser

Patent metadata

Field	Value
Publication number	US-9557097-B2
Application number	US-201514740657-A
Country	US
Kind code	B2
Filing date	Jun 16, 2015
Priority date	Dec 9, 2011
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A refrigerator includes a cabinet defining a fresh food compartment and a door pivotally mounted to the cabinet and including an interior surface in communication with the fresh food compartment when the door is closed. A liquid dispenser is arranged on the interior surface of the door, and a container is supported on the door and configured to receive liquid from the liquid dispenser. A sensor is configured to sense a property of the container, and a control is in communication with the sensor. The control is configured to regulate dispensing of liquid into the container based upon the sensed property of the container. In one example, the sensor is resiliently biased into contact with the container to sense a property of the container. In another example, the control indicates a stale liquid condition if a timer expires before the container has been removed from the door.

First claim

What is claimed is:

1. A method of dispensing a liquid from a refrigerator, comprising the steps of:
sensing a presence of a container on an interior surface of a door in communication with a fresh food compartment of the refrigerator;
sensing a presence of liquid within the container;
initiating a timer that tracks time;
indicating a stale liquid condition if a predetermined amount of time, tracked by the timer, has elapsed before the container has been removed from the door; and adjusting the predetermined amount of time via a user interface of said refrigerator.

2. The method of claim 1 , further comprising the steps of:
sensing an absence of the container on the interior surface of the door; and
resetting the timer after the presence of the container is subsequently sensed on the interior surface of the door.

3. The method of claim 1 , further comprising the steps of:
dispensing the liquid into the container; and
resetting the timer after the liquid dispensing is complete.

4. The method of claim 1 , further comprising the steps of:
dispensing the liquid into the container;
sensing an amount of liquid within the container; and
stopping the dispensing of liquid when the sensed amount of liquid is equal to a predetermined amount of liquid within the container.

5. The method of claim 1 , wherein the timer counts down from the predetermined amount of time until the timer expires.

6. The method of claim 1 , wherein the predetermined amount of time is preset.

7. The method of claim 1 , wherein the step of indicating a stale liquid further comprises the step of:
illuminating at least one visual indicator.

8. The method of claim 7 , further comprising the steps of:
illuminating the at least one visual indicator to indicate the stale liquid condition; and
illuminating at least another visual indicator to indicate an acceptable liquid condition.

9. The method of claim 1 , wherein the step of indicating a stale liquid further comprises the step of:
operating at least one of a sound feedback device or tactile feedback device.

10. The method of claim 1 , wherein the step of indicating the stale liquid is provided by an indication on a user interface of said refrigerator.

11. The method of claim 1 , further comprising the steps of:
dispensing the liquid into the container; and
resetting the timer immediately upon dispensing the liquid.

12. The method of claim 1 , wherein the steps of sensing the presence of the container and sensing the presence of liquid within the container are performed by a capacitive sensor.

13. The method of claim 12 , wherein the capacitive sensor is coupled to a dielectric plate located adjacent to the container and is resiliently biased into engagement with the container.

14. The method of claim 1 , wherein the step of sensing the presence of the container performed by a first capacitive sensor, and the step of sensing the presence of liquid within the container is performed by a second capacitive sensor.

Assignees

• Electrolux Home Prod Inc

Inventors

• Mcmahan Travis
• Bertolini Nilton
• Thompson Thomas R
• Sanchez Jorge Carlos Montalvo
• Comsa Cornel

Classifications

• B67D1/1238

  comprising means for detecting the liquid level in vessels to be filled, e.g. using ultrasonic waves, optical reflexion, probes · CPC title

• F25D23/126 Primary

  Water cooler · CPC title

• F25D2323/122

  the refrigerator is characterised by a water tank for the water/ice dispenser · CPC title

• F25D2331/81

  Pitchers · CPC title

• B67D7/221

  using electrical or electro-mechanical means (B67D7/224 takes precedence) · CPC title