US Patent No: 6,557,458

Number of patents in Portfolio can not be more than 2000

Device and method for controlling the closing and opening of an extraction chamber of a coffee maker

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Importance

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Abstract

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A control device for the closing and opening of the extraction chamber (5) of a coffeemaking machine of the espresso type. The extraction chamber (5) comprises two parts (3, 4) movable relative to each other by an electric motor (6) to open or close the extraction chamber (5). The device comprises: elements for measuring the intensity of the supply current of the motor (6) at least during the closing phase of the extraction chamber (5); elements for detecting a drop in the derivative relative to the current supply time below a predetermined threshold, permitting detecting the optimum closed position for the extraction chamber (5), so as to stop the movement of the movable parts (3, 4) when this position is reached.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COMPAGNIE MEDITERRANEENNE DES CAFES S.A.CARROS17

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blanc, Jean-Pierre Nice, FR 38 84
Ferrier, Christian Nice, FR 10 128

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4,484,515 Automatic espresso coffee machine 66 1983
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
6,994,015 Apparatus for preparing coffee 20 2003
 
SYMATESE (1)
7,569,243 Methods of preparing a food product from a cartridge 21 2006
 
NESTEC S.A. (6)
7,216,582 Percolating device 23 2003
* 2004/0031,394 Percolating device 15 2003
* 7,798,055 System for dispensing short and long coffee beverages 17 2005
* 2005/0183,578 System for dispensing short and long coffee beverages 25 2005
* 8,210,098 Brewing device for capsule with closure mechanism of variable transmission ratio 4 2007
* 2009/0308,258 BREWING DEVICE FOR CAPSULE WITH CLOSURE MECHANISM OF VARIABLE TRANSMISSION RATIO 5 2007
 
COMPAGNIE MEDITERRANEENNE DE CAFES S.A. (2)
7,461,584 Device for the production of a beverage, provided with a means of detection 1 2005
* 2007/0245,901 Device for the Production of a Beverage, Provided with a Means of DetecTion 0 2005
 
APPLIANCE DEVELOPMENT CORPORATION (1)
* 2006/0254,428 Coffee making apparatus 15 2005
* Cited By Examiner