[특허]System for failsafe controlled dispensing of liquid material

MacLean-Blevins, Mark

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특허 상세정보

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System for failsafe controlled dispensing of liquid material

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05B-007/26
미국특허분류(USC)	239/310; 239/353; 239/407; 239/414; 239/570; 239/581.1; 137/614.2
출원번호	US-0488870 (2009-06-22)
등록번호	US-8480012 (2013-07-09)
발명자 / 주소	MacLean-Blevins, Mark
출원인 / 주소	MacLean-Blevins, Mark
대리인 / 주소	Rosenberg, Klein & Lee
인용정보	피인용 횟수 : 0 인용 특허 : 51

초록
▼

A system and method are provided for selectively containing and dispensing a predetermined liquid material in and from a source container in failsafe manner, wherein a housing is disposed to receive a pressurized fluid stream, and a selectively operable valve assembly is disposed in a flow path defined in the housing. The housing includes an inlet, an outlet, and an intermediate portion extending therebetween, which is formed with an admission port for admitting the predetermined liquid material. The valve assembly is disposed between the housing's inlet and outlet, and may be selectively operated to alternatively open and close access of the predetermined liquid material into the housing. The valve assembly is operably actuated responsive at least in part to the pressurized fluid stream in the flow path, whereby admission of the predetermined liquid material into said housing is keyed by introduction of the pressurized fluid stream into the flow path.

대표
청구항
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1. A system for failsafe controlled dispensing of a liquid material from a source compartment comprising: a housing having an inlet, an outlet, and an intermediate portion extending therebetween, said intermediate portion having formed therein an admission port for admission of the liquid material therethrough;a control valve disposed in said intermediate portion for directing a pressurized fluid stream entering said inlet separate from the liquid material, said control valve being selectively disposed between at least open and closed configurations; and,a response valve disposed in a flow path defined to remain outside the source compartment between said control valve and said outlet, said response valve being actuable between active and inactive configurations responsive to said control valve direction of said pressurized fluid stream, said response valve being maintained in said active configuration by delivery of said pressurized fluid stream to said open control valve;wherein admission of the liquid material from the source compartment into said housing is enabled by said response valve being in said active configuration; the system maintaining the pressurized fluid stream within the flow path. 2. The system as recited in claim 1, wherein said response valve includes a displaceable assembly displaceable between active and inactive positions relative to said housing to assume said respective active and inactive configurations, said displaceable assembly being resiliently biased to one of said inactive and active positions. 3. The system as recited in claim 2, wherein said displaceable assembly includes a spring loaded piston member disposed in axially displaceable manner within a receiving compartment in said housing intermediate portion, said piston member having an interface end and a mixing chamber extending axially therefrom, said mixing chamber being in open communication with said admission port when said displaceable assembly is disposed in said active position. 4. The system as recited in claim 1, further comprising a hose coupling connected at said inlet, said outlet being configured for connection to a downstream flow control valve, said response valve being automatically reconfigured to said inactive configuration responsive to downstream closure of the flow path. 5. The system as recited in claim 1, further comprising a backflow-prevention device connected at said inlet to extend into said intermediate portion. 6. A system for selectively containing and dispensing a predetermined liquid material from a source compartment in failsafe manner comprising: a housing having an inlet, an outlet, and an intermediate portion extending therebetween, said intermediate portion having formed therein an admission port for admitting the liquid material therethrough;a first valve disposed in said intermediate portion for receiving a pressurized fluid stream entering said inlet separate from the liquid material, said first valve being selectively disposed between at least open and closed configurations;a second valve operably coupled to said first valve, said second valve being actuable between active and inactive configurations, said second valve being responsively maintained in said active configuration upon said first valve being in said open configuration and concurrently receiving said pressurized fluid stream, said second valve being biased to return to said inactive configuration when either said first valve is disposed in said closed configuration or said pressurized fluid stream is mitigated;wherein admission of the liquid material from the source compartment into a flow path defined in said housing to remain outside the source compartment is enabled when said second valve is disposed in said active configuration; the system maintaining the pressurized fluid stream within the flow path. 7. The system as recited in claim 6, wherein said second valve includes a displaceable assembly displaceable between active and inactive positions relative to said housing to assume said respective active and inactive configurations, said displaceable assembly being resiliently biased to one of said inactive and active positions. 8. The system as recited in claim 7, wherein said displaceable assembly includes a spring loaded piston member disposed in axially displaceable manner within a receiving compartment in said housing intermediate portion, said piston member having an interface end and a mixing chamber extending axially therefrom, said mixing chamber being in open communication with said admission port when said displaceable assembly is disposed in said active position. 9. The system as recited in claim 6, further comprising a hose coupling connected at said inlet, said outlet being configured for connection to a downstream flow control valve, said second valve being automatically reconfigured to said inactive configuration responsive to downstream closure of the flow path. 10. The system as recited in claim 6, further comprising a backflow-prevention device connected at said inlet to extend into said intermediate portion.

이 특허에 인용된 특허 (51)

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System for failsafe controlled dispensing of liquid material

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System for failsafe controlled dispensing of liquid material

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이 특허에 인용된 특허 (51)

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