[특허]Pressure cooker

TTK Prestige Limited

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Pressure cooker

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47J-027/09
출원번호	US-0770387 (2014-01-03)
등록번호	US-9854932 (2018-01-02)
우선권정보	IN-4035/CHE/2013 (2013-09-10)
국제출원번호	PCT/IN2014/000008 (2014-01-03)
국제공개번호	WO2015/037012 (2015-03-19)
발명자 / 주소	Tiruvallur, Thatai Jagannathan
출원인 / 주소	TTK Prestige Limited
대리인 / 주소	Lerner, David, Littenberg, Krumholz & Mentlik, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 12

초록
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This invention relates to a safety locking means, particularly Multi functions Safety Lock means for a pressure cooker acting as a pressure indicator cam locking means comprising of a rod (1) as visual pressure indicator and a washer (4) suitably and removably fixed to avoid erroneous opening and closing of the pressure cooker thereby ensuring safe operation by the rod positioning above the lock cover (3) under pressure where restricts opening of the pressure cooker otherwise enables the pressure cooker to be opened when not in pressure. This locking mea...

대표
청구항
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1. A multifunction safety lock means, which is a pressure indicator cam lock means for a pressure cooker, which lock means is a pressure response type body comprising: a. a pressure monitoring means comprising a moving rod that moves between a first state and a second state with a moveable sealing silicone washer mounted thereon and combinedly mounted freely across a hole formed on a cover of the cooker with the washer positioned underneath the cover, and which rod and washer move upward under increasing pressure to lift the rod from the first state and the washer towards an underside of the cover thereby pushing sealingly the washer until positioned against the underside of the cover to seal the hole, the rod also extending upwardly above a top surface of the cover to reach the second state of the rod and adapted further to move downward under decreasing pressure to drop the rod from the second state and the washer away from the underside of the cover thereby unsealingly moving the washer away from the underside of the cover to unseal the hole and the rod dropping downwardly until a rod head is seated against the top surface of the cover to reset into the first state of the rod, wherein the first state of the rod is indicative of zero internal pressure and the second state of the rod is indicative of an operating internal pressure of the cooker,b. a locking means of push rod type operably associated with the pressure monitoring means comprising a first end connected to a top end of the rod and a second end terminating near a peripheral edge of the cover and passing through a hole formed on the peripheral edge of the cover, such that the second end of lock means is responsive and representative of a state of the rod having two positions, which are an extended state and retracted state of the lock means corresponding to the second state and the first state of the rod of the pressure monitoring means,c. a plurality of locking lugs on a base container associated with matching locking lugs on the cooker cover, with a first set of matching locking lugs of the container adapted to engage with the locking means on the cover, andd. the arrangement characterized in that: (i) ordinarily securely locking the cooker cover with the container when the first set of matching locking lugs of the container is engaged with the locking means on the cover so that the internal pressure builds up beyond a predetermined value and the locking rod is in the extended state,(ii) ordinarily securely unlocking the cover from the container when the internal pressure is released entirely and the locking rod is in the retracted state,(iii) ordinarily preventing pressure buildup if the first set of matching locking lugs of the container is not engaged with the locking means on the cover, and(iv) an intentional manual downward push motion of the rod of the locking means releases the internal pressure rapidly. 2. The cooker as claimed in claim 1, wherein the cooker is a conventional pressure cooker operating on gas, microwave pressure cooker or an induction pressure cooker. 3. The cooker as claimed in claim 1, wherein the pressure monitoring means is removably mounted. 4. The cooker as claimed in claim 1, wherein the locking means is removably mounted. 5. A pressure cooker with a multifunction safety lock means for locking a container with a cover of the cooker, the lock means being a pressure indicator cam lock means with a pressure response type body, the pressure cooker comprising: a. a pressure monitoring means comprising a moving rod that moves between a first state and a second state with a sealing silicone washer mounted thereon and combinedly mounted freely across a hole formed on the cover of the cooker with the washer positioned underneath the cover, and which rod and washer move upward under increasing pressure to lift the rod from the first state and the washer towards an underside of the cover thereby pushing sealingly the washer until positioned against the underside of the cover to seal the hole, the rod also extending upwardly above a top surface of the cover to reach the second state of the rod and adapted further to move downward under decreasing pressure to drop the rod from the second state and the washer away from the underside of the cover thereby unsealingly moving the washer away from the underside of the cover to unseal the hole, the rod dropping downwardly until a rod head is seated against a top surface of the cover to reset into the first state of the rod, wherein the first state of the rod is indicative of zero internal pressure and the second state of the rod is indicative of an operating internal pressure of the cooker,b. a locking means of a push rod type operably associated with the pressure monitoring means comprising a first end connected to a top end of the rod and a second end terminating near a peripheral edge of the cover and passing through a hole formed on the peripheral edge of the cooker cover, such that second end of locking means is responsive and representative of a state of the rod having two positions, which are an extended state and a retracted state of the locking means corresponding to the second state and the first state of the rod of the pressure monitoring means,c. a plurality of locking lugs on a base container associated with matching locking lugs on the cooker cover, with a first set of matching locking lugs of the container adapted to engage with the locking means on the cover, andd. the arrangement characterized in that: (i) ordinarily securely locking the cooker cover with the container when the first set of matching locking lugs of the container is engaged with the locking means on the cooker cover so that the internal pressure builds up beyond a predetermined value and the locking rod is in the extended state,(ii) ordinarily securely unlocking the cover from the container when the internal pressure is released entirely and the locking rod is in the retracted state,(iii) ordinarily preventing pressure buildup if the first set of matching locking lugs of the container is not engaged with the locking means on the cover, and(iv) an intentional manual downward push motion of the rod of the locking means releases the internal pressure rapidly. 6. The cooker as claimed in claim 5, wherein the cooker is a conventional pressure cooker operating on gas, microwave pressure cooker or an induction pressure cooker. 7. The cooker as claimed in claim 5, wherein the pressure monitoring means is removably mounted. 8. The cooker as claimed in claim 5, wherein the locking means is removably mounted.

이 특허에 인용된 특허 (12)

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특허 상세정보

Pressure cooker

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이 특허에 인용된 특허 (12)

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Pressure cooker

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이 특허에 인용된 특허 (12)

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IPC 상세정보(version : 201201)

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