[특허]Removable final scrubber tube

Leco Corporation

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Removable final scrubber tube

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-046/00 G01N-001/40
미국특허분류(USC)	096/109; 096/147; 096/417; 055/312; 055/410; 055/418; 055/478; 055/480
출원번호	US-0357894 (2012-01-25)
등록번호	US-8828126 (2014-09-09)
발명자 / 주소	Latino, Octavio Ramon Allen, Lloyd Andrew
출원인 / 주소	Leco Corporation
대리인 / 주소	Price Heneveld LLP
인용정보	피인용 횟수 : 0 인용 특허 : 28

초록
▼

A final scrubber in the inert carrier gas flow path of an elemental analyzer includes a manifold with valves for selectively bypassing a quick disconnect final scrubber housing that includes a filter tube and sealed gas fittings. The housing includes alignment members and a latch for positioning and locking the housing onto and in sealed engagement with the instrument's manifold. A switch detects the presence of the housing, and a control circuit controls valves to direct the inert gas flow though the filter tube or bypass the filter tube when the housing is removed. With this system, the final scrubber can be removed and replaced quickly without the use of tools while the carrier gas continues to flow though the furnace without interruption. Also, the valves can be closed to allow for segmented leak detection of the instruments gas flow path.

대표
청구항
▼

1. A system for changing a filter cartridge in an analyzer comprising: a fluid flow path including a manifold with input and output fluid fittings and at least one valve coupled to one of said input and output fittings; anda housing for a filter cartridge, said housing including housing fluid conduits which align with and couple to associated ones of said input and output fluid fittings of said manifold, wherein said manifold includes a sensor switch which is actuated when said housing is positioned on or removed from said manifold; and wherein said manifold further includes a three-way valve coupled to said input fitting and a three-way valve coupled to said output fitting and wherein said system includes a control circuit coupled to said sensor switch and to said three-way valves for actuating said three-way valves when said housing is positioned on or removed from said manifold, such that, when said housing is removed from said manifold for the replacement of a filter cartridge mounted to said housing, said three-way valves shut off the flow path to said input and output fittings. 2. The system as defined in claim 1 and further including a bypass flow path coupled to said three-way valves to bypass said housing when removed from said manifold. 3. A system for changing a final scrubber in an analytical instrument comprising: a gas flow path for a carrier gas, said path including a manifold with input and output gas fittings; anda housing including a filter cartridge, said housing further including housing input and output spring-loaded valves which align with and couple to associated ones of said input and output gas fittings of said manifold, said housing interacting with said manifold to actuate said spring-loaded valves, such that, when said housing is not installed on said manifold, said filter cartridge is sealed, wherein said manifold includes a three-way valve coupled to said input fitting and a three-way valve coupled to said output fitting and a sensor switch which is actuated when said housing is positioned on or removed from said manifold, and wherein said system includes a control circuit coupled to said sensor switch and to said three-way valves for actuating said three-way valves when said housing is positioned on or removed from said manifold. 4. The system as defined in claim 3 and further including a bypass flow path coupled to said three-way valves to bypass said housing when removed from said manifold. 5. The system as defined in claim 4 wherein said manifold includes one of a latch and catch and said housing includes the other of a latch and catch such that said housing can be releasably locked on to said manifold. 6. A system for changing a filter cartridge in an analyzer furnace for the analysis of a sample, said system comprising: a manifold for a carrier gas, said manifold having input and output gas fittings;a housing for a filter cartridge, said housing including housing fittings which align with and couple to associated ones of said input and output gas fittings of said manifold such that said housing can be removably attached to said manifold for the replacement of a filter cartridge mounted to said housing;a sensor switch for detecting the presence of said housing on said manifold; andwherein said manifold further includes a three-way valve coupled to said input fitting and a three-way valve coupled to said output fitting and wherein said system includes a control coupled to said sensor switch and to said valves for actuating said valves when said housing is positioned on or removed from said manifold. 7. The system as defined in claim 6 wherein said manifold includes one of a latch and catch and said housing includes the other of a latch and catch such that said housing can be releasably locked on to said manifold. 8. The system as defined in claim 7 and further including a bypass flow path coupled to said three-way valves to bypass said housing when removed from said manifold. 9. The system as defined in claim 6 wherein said manifold includes at least one of an alignment pin or aperture and said housing includes the other of at least one of an alignment pin or aperture for aligning said housing to said manifold as it is mounted thereto. 10. The system as defined in claim 6 wherein said housing fittings include an input fitting and an output fitting, each including a spring-loaded valve which are actuated to open when said housing is installed on said manifold. 11. The system as defined in claim 10 wherein said spring-loaded valves each include a ball and seal and wherein said input and output gas fittings of said manifold engage said balls to force them away from said seals to open the flow path through said filter cartridge when said housing is installed on said manifold.

이 특허에 인용된 특허 (28)

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특허 상세정보

Removable final scrubber tube

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Removable final scrubber tube

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이 특허에 인용된 특허 (28)

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IPC 상세정보(version : 201201)

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