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Method and apparatus for pump control

a technology of pump control and apparatus, applied in the direction of pump control, application, positive displacement liquid engine, etc., can solve the problem of not operating in a way that allows a user to control the amount of water actually used

Inactive Publication Date: 2006-12-28
KEURIG INCORPORATED
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] The inventors have appreciated that some beverage forming machines, such as single serve coffee brewers, require an accurate water volume to form a quality beverage, but do not operate in such a way as to allow a user to control the amount of water actually used. For example, some coffee brewers have a water storage tank that holds sufficient water for several beverages. Although the user may be able to defin...

Problems solved by technology

The inventors have appreciated that some beverage forming machines, such as single serve coffee brewers, require an accurate water volume to form a quality beverage, but do not operate in such a way as to allow a user to control the amount of water actually used.

Method used

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  • Method and apparatus for pump control

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Embodiment Construction

[0015] Aspects of the invention may be practiced using any suitable pump / control arrangement and / or with any associated beverage forming system. Several different embodiments are described herein for purposes of illustration. However, these illustrative embodiments should not be used to narrowly interpret the scope of the invention. For example, embodiments are described below in which a beverage forming apparatus includes a water storage tank and a metering chamber, from which liquid is provided to a brew chamber. However, aspects of the invention are not limited to this type of arrangement. For example, aspects of the invention may be used in systems including no metering chamber, e.g., water is supplied directly from a storage tank to a brew chamber, and / or in systems having no brew chamber, e.g., systems in which a beverage is formed without brewing. In addition, various aspects of the invention are described herein, and these various aspects may be used in any suitable combinat...

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Abstract

A method and apparatus for controlling a pump adapted to cause liquid to flow from a first location to a second location. The pump may be operated in a calibration period, and based on performance characteristics for the pump, an operation index may be assigned to the pump. The operation index may be used to control subsequent operation of the pump. For example, the operation index may be used to identify an operation time for the pump to deliver a predetermined volume of liquid. Performance characteristics used to determine the operation index may include a voltage supplied to the pump and / or a volume flow rate of the pump.

Description

BACKGROUND OF INVENTION [0001] 1. Field of Invention [0002] This invention relates to methods and apparatus for pump control. [0003] 2. Related Art [0004] Volume control for beverage forming machines, such as coffee brewers, can be important to the quality of the formed beverage(s). For example, standard drip coffee makers typically include a water reservoir that is filled with a desired volume of water by a user that is used by the machine to make a volume of coffee. Such reservoirs often include a sight glass or other arrangement that allows the user to define the amount of water in the reservoir. As a result, the user may have a certain amount of control over the amount of water used by the machine to make the coffee beverage. SUMMARY OF INVENTION [0005] The inventors have appreciated that some beverage forming machines, such as single serve coffee brewers, require an accurate water volume to form a quality beverage, but do not operate in such a way as to allow a user to control ...

Claims

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Application Information

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IPC IPC(8): F04B49/06
CPCA47J31/402A47J31/40F04B49/06
Inventor BRUDEVOLD, FINNPELOVITZ, ROBERT M.
Owner KEURIG INCORPORATED
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