IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0484361
(2002-07-22)
|
등록번호 |
US-7624674
(2009-12-16)
|
우선권정보 |
FR-01 09898(2001-07-20) |
국제출원번호 |
PCT/FR02/002618
(2002-07-22)
|
§371/§102 date |
20040625
(20040625)
|
국제공개번호 |
WO03/011087
(2003-02-13)
|
발명자
/ 주소 |
- Chameroy, Eric
- Murat, Pascal Roland Clément
|
출원인 / 주소 |
|
대리인 / 주소 |
Thomas, Kayden, Horstemeyer & Risley, LLP
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
A household appliance for cooking under pressure, the appliance being provided with bistable calibrated leakage means suitable for taking up an open position in which the pressure inside the appliance is allowed to increase continuously to above a determined pressure P0, while also allowing air to b
A household appliance for cooking under pressure, the appliance being provided with bistable calibrated leakage means suitable for taking up an open position in which the pressure inside the appliance is allowed to increase continuously to above a determined pressure P0, while also allowing air to be bled from the appliance, and a closed position corresponding to an absence of leakage of air to the outside, the open position being sustained until a predetermined pressure value P1 is reached. Rather than being sustained until the predetermined pressure P1 is reached, the open position is sustained for one of a predetermined time interval Δt after P0 is reached, and until a predetermined temperature value T1 is reached. The appliance is provided with at least one closure/opening safety means whose position is sensitive to pressure.
대표청구항
▼
The invention claimed is: 1. A household appliance for cooking under pressure, the appliance comprising a cooking bowl and a lid designed to be locked onto the bowl so as to make it possible for the pressure inside the appliance to be increased, said appliance being provided with at least one calib
The invention claimed is: 1. A household appliance for cooking under pressure, the appliance comprising a cooking bowl and a lid designed to be locked onto the bowl so as to make it possible for the pressure inside the appliance to be increased, said appliance being provided with at least one calibrated opening and bistable calibrated air leakage means arranged and configured to be positionable between an open position in which the pressure inside the appliance is allowed to increase continuously to above a determined pressure P0, while also allowing air to be bled from the appliance through said opening, and a closed position corresponding to an absence of leakage of air to the outside, said open position being sustained for at least one of a predetermined time interval Δt after reaching a pressure value P0, the predetermined time interval Δt after reaching a temperature value T0 corresponding to the pressure value P0, until a predetermined pressure value P1 is reached, and until a predetermined temperature value T1 is reached, where P1>P0, and T1>T0, said appliance being provided with a closure/opening safety means whose position is sensitive to the pressure prevailing in the bowl, and which is mounted to move between two stable abutment positions, namely a first position in which said closure/opening safety means puts the inside of the bowl into communication with the outside below the determined pressure P0, and a second position in which said closure/opening safety means prevent opening of the appliance and close off communication from the bowl to the outside when the pressure P0 is reached, so as to allow the pressure inside the appliance to increase and so as to allow cooking to take place. 2. The appliance of claim 1, wherein said calibrated air leakage means further comprises said at least one calibrated opening (6) configured for leakage to take place that is equivalent to an opening of 1.75 mm2 to 4.15 mm2, and preferably about 2.80 mm2, and a movably mounted closure element associated with said at least one calibrated opening. 3. The appliance of claim 1, wherein the calibrated air leakage means is configured to react to the temperature prevailing in the appliance. 4. The appliance of claim 3, wherein the calibrated air leakage means further comprises one of a bimetallic disk, a wax actuator, and a solenoid valve associated with a temperature sensor. 5. The appliance of claim 4, wherein the calibrated air leakage means further comprises a heavy valve pintle supported by a bimetallic disk, the bimetallic disk being supported by a main body mounted facing an opening in the lid, so that the calibrated opening is defined between said pintle and the opening forming a seat for receiving the pintle in leaktight manner when the bimetallic disk is in the closed position. 6. The appliance of claim 5, wherein the opening underlies a tubular body, a top portion of which forms the seat for receiving the pintle, the main body being formed by a removable cap fitting over said tubular body. 7. The appliance of claim 4, wherein the calibrated air leakage means further comprises a heavy valve pintle supported by a bimetallic disk, the bimetallic disk being supported by a tubular body mounted facing an opening in the lid, said opening forming a seat for receiving the pintle in leaktight manner when the bimetallic disk is in the closed position, the calibrated opening being formed by openings defined in a crenellated collar forming an abutment for the tubular body. 8. The appliance of claim 1, wherein the calibrated air leakage means is configured to react to the pressure prevailing in the appliance. 9. The appliance of claim 1, wherein the calibrated air leakage means are incorporated in the closure/opening safety means. 10. The appliance of claim 9, wherein the calibrated air leakage means are incorporated in an Aroma pintle and, by way of a moving closure element, are provided with a bimetallic disk supported by the Aroma pintle. 11. The appliance of claim 10, wherein the calibrated leakage means are incorporated in a first Aroma pintle and are formed by a second Aroma pintle that is concentric with the first Aroma pintle, and that is mounted to move relative to the first Aroma pintle. 12. The appliance of claim 8, wherein the calibrated air leakage means are formed by a deformable gasket element that is configured to be deformed by the pressure and close off the calibrated hole. 13. The appliance of claim 12, wherein the deformable gasket is incorporated in a bore in the lid of the appliance, and has a deformable diaphragm with a central well in which at least one calibrated hole is provided, said central well being terminated by a sealing face configured to press against the body of the gasket to form a sealing seat from a pressure at least equal to P1. 14. The appliance of claim 13, wherein an Aroma pintle is mounted in the central well to slide freely between two abutment positions. 15. The appliance of claim 3 wherein the calibrated air leakage means are incorporated in a ramp of a safety valve member. 16. The appliance of claim 15, wherein the calibrated air leakage means further comprises a bimetallic disk mounted in resilient abutment against the ramp of the valve member, the ramp being mounted to move relative to the calibrated hole so that the ramp comes to open or to close the calibrated hole depending on the position of the bimetallic disk. 17. The appliance of claim 1, wherein the calibrated air leakage means further comprises at least one of a temperature sensor and a pressure sensor for sensing when the temperature T0 and the pressure P0 is reached, respectively, and a timer for counting down the predetermined time Δt as from the instant at which P0 or T0 is reached, and an opening and closure system for opening and closing the calibrated hole. 18. The appliance of claim 1, wherein the calibrated air leakage means are organized on the lid of the cooking appliance.
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