Pressure cooker with overpressure safety device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-051/16
B65D-045/00
A47J-027/00
A47J-027/08
A47J-036/00
출원번호
US-0255285
(2008-10-21)
등록번호
US-8096436
(2012-01-17)
우선권정보
FR-07 07407 (2007-10-23)
발명자
/ 주소
Rhetat, Eric Jacques
Bouye, Nathalie
출원인 / 주소
SEB S.A.
대리인 / 주소
Thomas, Kayden, Horstemeyer & Risley, LLP
인용정보
피인용 횟수 :
2인용 특허 :
0
초록▼
The invention relates to a pressure cooking appliance (1) having: a bowl (2) with a side wall (2B),a lid (3),a sealing gasket (4) interposed between the side wall (2B) and the lid (3),said appliance (1) being designed so that, when the pressure inside the chamber reaches a predetermined safety value
The invention relates to a pressure cooking appliance (1) having: a bowl (2) with a side wall (2B),a lid (3),a sealing gasket (4) interposed between the side wall (2B) and the lid (3),said appliance (1) being designed so that, when the pressure inside the chamber reaches a predetermined safety value, the gasket (4) moves up to reach a safety position, said appliance (1) being characterized in that the side wall (2B) comprises a geometrical irregularity (10) intended to interact with the gasket (4) when the latter is located at the predetermined safety position thereof so as to interrupt the contact between the gasket (4) and the side wall (2B).
대표청구항▼
1. Household appliance (1) for cooking food under pressure, comprising: a bowl (2) with a bottom (2A) and a side wall (2B) rising up from said bottom (2A) and circumscribing an opening (2C),a lid (3) intended to be associated with the bowl (2) to form therewith a cooking chamber, the cooking chamber
1. Household appliance (1) for cooking food under pressure, comprising: a bowl (2) with a bottom (2A) and a side wall (2B) rising up from said bottom (2A) and circumscribing an opening (2C),a lid (3) intended to be associated with the bowl (2) to form therewith a cooking chamber, the cooking chamber having an inside between said bottom and said lid, wherein the outside is the ambient environment,a sealing gasket (4) interposed between the side wall (2B) and the lid (3), said gasket (4) being designed to be in contact with the side wall (2B) as long as the pressure inside the chamber does not exceed a predetermined safety value, so as to impart a substantial leaktightness to the cooking chamber,said appliance (1) being designed so that, when the pressure inside the chamber reaches the predetermined safety value, the gasket (4) moves at least locally relative to the side wall (2B) up to reach a predetermined safety position, said appliance (1) being characterized in that, on the one hand, said lid (3) comprises a main body (3A) having a periphery from which and at the periphery of which extends a falling edge (3B), the falling edge (3B) being designed to be disposed inside the bowl (2) and to be surrounded by the side wall (2B) when the lid (3) is fitted onto the bowl (2), and on the other hand, the side wall (2B) comprises at least a geometrical irregularity (10, 12) intended to interact with the gasket (4) when the latter is located at the predetermined safety position thereof so as to interrupt, near the irregularity (10, 12), the contact between the gasket (4) and the side wall (2B) and thus to authorize a steam leakage from the inside to the outside of the chamber. 2. The appliance (1) according to claim 1, in which said side wall (2B) has an inner face (20B) running opposite to the inside of the bowl (2), said sealing gasket (4) being designed to be in contact with said inner face (20B). 3. The appliance (1) according to claim 2, in which said sealing gasket (4) is attached to the lid (3). 4. The appliance (1) according to claim 3, in which said lid (3) is designed to move, at least locally, under the effect of pressure increasing inside the chamber, and to drag with it the gasket (4) so as to bring the latter at the predetermined safety position thereof when said pressure reaches the predetermined safety value. 5. The appliance (1) according to claim 1 in which said gasket (4) hugs said falling edge (3B). 6. The appliance (1) according to claim 1 in which said sealing gasket (4) has a U-shaped cross-section, the U-legs each forming a first and a second lips (4A, 4B), while the U-web forms the heel (4C) of the gasket (4), the first lip (4A) being intended to come in contact with the side wall (2B) while the second lip (4B) is intended to come in contact with the lid (3). 7. The appliance (1) according to claim 6, in which said second lip (4B) hugs the falling edge (3B). 8. The appliance (1) according to claim 1 in which when the pressure inside the chamber reaches the predetermined safety value, the gasket (4) at least locally moves away from the bottom (2A) of the bowl (2) so that at least a portion of said gasket (4) is located at a predetermined distance from said bottom (2A), the geometrical irregularity (10, 12) being positioned on the side wall (2B) at a distance corresponding to said predetermined distance. 9. The appliance (1) according to claim 1 in which each geometrical irregularity (10, 12) comprises at least a recess (10A) provided into the side wall (2B). 10. The appliance (1) according to claim 9, in which said recess (10A) is formed through a localized deformation of the side wall (2B), from the inside of the bowl (2) to the outside. 11. The appliance (1) according to claim 1 and including a means (5) for locking the lid (3) onto the bowl (2), designed to locally fasten the lid (3) to the bowl (2) in a plurality of fastening areas (6), each geometrical irregularity (10, 12) being positioned the furthest possible from the fastening areas (6). 12. The appliance (1) according to claim 1 in which said geometrical irregularity (10, 12) is arranged on the side wall (2B) at distance from the opening (2C) of the bowl (2).
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