[특허]Fluid transfer device with lock

Marshall Excelsior Company

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Fluid transfer device with lock

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-001/44 F16L-029/00
미국특허분류(USC)	137/630.14; 137/614.06; 251/149.9
출원번호	US-0342724 (2012-01-03)
등록번호	US-8752586 (2014-06-17)
발명자 / 주소	Blanchard, Frederick W. Hoffman, Alex L.
출원인 / 주소	Marshall Excelsior Company
대리인 / 주소	Howard & Howard Attorneys PLLC
인용정보	피인용 횟수 : 3 인용 특허 : 31

초록
▼

A fluid transfer system includes a transfer device coupled to a dry break coupler. The transfer device includes a valve assembly moveable between an open and a closed position. The valve assembly includes a main valve and a pilot valve. An actuator controls both the main valve and the pilot valve. A cam plate interconnects the actuator and the valve assembly. The cam plate provides a quick acting shutoff to quickly move the valve assembly to the closed position. A pivotal and rotatable connector couples the transfer device to the dry break coupler. A loc...

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1. A fluid transfer device comprising: a housing defining an inlet and an outlet;an actuator having a grasping portion moveable fore and aft, said actuator moveable between first and second positions relative to said housing;a valve assembly disposed in said housing and operatively coupled to said actuator, said valve assembly including a main valve moveable between a closed-main valve position and an open-main valve position in response to movement of said actuator and a pilot valve moveable between a closed-pilot valve position and an open-pilot valve position in response to movement of said actuator wherein said main valve is in said closed-main valve position and said pilot valve is in said closed-pilot valve position when said actuator is in said first position; anda lock operatively coupled to said actuator and moveable between a locked position and an unlocked position, said lock preventing said actuator from moving said main valve from said closed-main valve position to said open-main valve position and preventing said actuator from moving said pilot valve from said closed-pilot valve position to said open-pilot valve position when said actuator is in said first position and said lock is in said locked position;said housing defining at least one catch for receiving said lock in said locked position wherein said lock is disengageable from said at least one catch to allow movement of said actuator from said first position to said second position to move said pilot valve to said open-pilot valve position and to move said main valve to said open-main valve position. 2. A fluid transfer device as set forth in claim 1 wherein said housing defines a longitudinal axis and said actuator is pivotally coupled to said housing about a pivot axis transverse to said longitudinal axis, said grasping portion moveable fore and aft relative to said housing to pivot said actuator about said pivot axis. 3. A fluid transfer device as set forth in claim 1 wherein said actuator has a pair of arms depending from said grasping portion and said lock slidably engages said arms for sliding relative to said arms between said locked and unlocked positions. 4. A fluid transfer device as set forth in claim 1 wherein said lock slidably engages said actuator for sliding relative to said actuator between said locked and unlocked positions. 5. A fluid transfer device as set forth in claim 1 including at least one lock spring biasing said lock into said locked position in said at least one catch. 6. A fluid transfer device as set forth in claim 1 wherein said at least one catch is further defined as at least one pocket for receiving and engaging said lock. 7. A fluid transfer device as set forth in claim 1 wherein said at least one catch includes a pair of catches for receiving said lock. 8. A fluid transfer device as set forth in claim 7 wherein said lock includes a pair of tabs for engaging said pair of catches. 9. A fluid transfer device as set forth in claim 8 including a pair of lock springs biasing said tabs into said catches. 10. A fluid transfer device as set forth in claim 8 wherein said housing includes a pair of contoured recesses for guiding said tabs of said lock and maintaining said tabs in said unlocked position during movement of said actuator. 11. A fluid transfer device as set forth in claim 1 wherein said lock includes a lip for simultaneously grasping along with said grasping portion of said actuator and for moving said lock from said locked position to said unlocked position. 12. A fluid transfer device as set forth in claim 1 wherein said main valve includes a sealing member. 13. A fluid transfer device as set forth in claim 1 wherein said pilot valve is slidable relative to said main valve when moving from said closed-pilot valve position to said open-pilot valve position. 14. A fluid transfer device as set forth in claim 1 wherein said main valve defines an aperture and said pilot valve is slidable in said aperture relative to said main valve when moving from said closed-pilot valve position to said open-pilot valve position. 15. A fluid transfer device as set forth in claim 14 wherein said aperture has a first section with a first diameter and a second section with a second diameter larger than said first diameter, said pilot valve being slidable in said second section of said aperture to permit fluid to flow through said first section. 16. A fluid transfer device as set forth in claim 1 including a handle attached to said housing and having a handle grasping portion spaced from said housing, said handle grasping portion being separate from said grasping portion of said actuator. 17. A fluid transfer device comprising: a housing defining an inlet and an outlet;an actuator having a grasping portion, said actuator moveable between first and second positions relative to said housing;a valve assembly disposed in said housing and operatively coupled to said actuator, said valve assembly including a main valve moveable between a closed-main valve position and an open-main valve position in response to movement of said actuator and a pilot valve moveable between a closed-pilot valve position and an open-pilot valve position in response to movement of said actuator wherein said main valve is in said closed-main valve position and said pilot valve is in said closed-pilot valve position when said actuator is in said first position;a lock operatively coupled to said actuator and moveable between a locked position and an unlocked position, said lock preventing said actuator from moving said main valve from said closed-main valve position to said open-main valve position and preventing said actuator from moving said pilot valve from said closed-pilot valve position to said open-pilot valve position when said actuator is in said first position and said lock is in said locked position; anda biasing device biasing said lock toward said locked position. 18. A fluid transfer device as set forth in claim 17 wherein said housing defines at least one catch for receiving said lock in said locked position when said actuator is in said first position such that said lock engages said at least one catch when said main valve is in said closed-main valve position and said pilot valve is in said closed-pilot valve position. 19. A fluid transfer device as set forth in claim 17 wherein said housing defines a longitudinal axis and said actuator is pivotally coupled to said housing about a pivot axis transverse to said longitudinal axis, said grasping portion moveable fore and aft relative to said housing to pivot said actuator about said pivot axis. 20. A fluid transfer device as set forth in claim 17 wherein said biasing device is a lock spring. 21. A fluid transfer device as set forth in claim 17 wherein said lock includes a lip for simultaneously grasping along with said grasping portion of said actuator and for moving said lock from said locked position to said unlocked position against the bias of said biasing device. 22. A fluid transfer device as set forth in claim 17 including a collar having an inner surface being threaded and a plurality of ball bearings arranged between said collar and said housing to rotatably couple said collar to said housing. 23. A fluid transfer device as set forth in claim 17 wherein said main valve includes a sealing member. 24. A fluid transfer device as set forth in claim 17 wherein said pilot valve is slidable relative to said main valve when moving from said closed-pilot valve position to said open-pilot valve position. 25. A fluid transfer device as set forth in claim 17 wherein said main valve defines an aperture and said pilot valve is slidable in said aperture relative to said main valve when moving from said closed-pilot valve position to said open-pilot valve position. 26. A fluid transfer device as set forth in claim 25 wherein said aperture has a first section with a first diameter and a second section with a second diameter larger than said first diameter, said pilot valve being slidable in said second section of said aperture to permit fluid to flow through said first section. 27. A fluid transfer device as set forth in claim 17 including a handle attached to said housing and having a handle grasping portion spaced from said housing, said handle grasping portion being separate from said grasping portion of said actuator. 28. A fluid transfer device as set forth in claim 27 wherein said grasping portion is moveable fore and aft relative to said housing and said handle. 29. A fluid transfer device comprising: a housing defining an inlet and an outlet;an actuator having a grasping portion moveable fore and aft, said actuator moveable between first and second positions relative to said housing;a valve assembly disposed in said housing and operatively coupled to said actuator, said valve assembly moveable between an open position and a closed position in response to movement of said actuator wherein said valve assembly is in said closed position when said actuator is in said first position;a lock operatively coupled to said actuator and moveable between a locked position and an unlocked position, said lock preventing said actuator from moving said valve assembly from said closed position to said open position when said actuator is in said first position and said lock is in said locked position; anda biasing device biasing said lock toward said locked position,said lock including a lip for simultaneously grasping along with said grasping portion of said actuator and for moving said lock from said locked position to said unlocked position against the bias of said biasing device to allow movement of said actuator from said first position to said second position to move said valve assembly from said closed position to said open position. 30. A fluid transfer device as set forth in claim 29 wherein said housing defines at least one catch for receiving said lock such that said lock engages said at least one catch under said bias of said biasing device when said valve assembly is in said closed position and said lock is disengageable from said at least one catch by grasping said lip and moving said lock to said unlocked position to allow movement of said actuator to move said valve assembly to said open position. 31. A fluid transfer device as set forth in claim 29 wherein said valve assembly includes a main valve moveable between an open-main valve position and a closed-main valve position and a pilot valve moveable between an open-pilot valve position and a closed-pilot valve position. 32. A fluid transfer device as set forth in claim 29 wherein said housing defines a longitudinal axis and said actuator is pivotally coupled to said housing about a pivot axis transverse to said longitudinal axis, said grasping portion moveable fore and aft relative to said housing to pivot said actuator about said pivot axis. 33. A fluid transfer device as set forth in claim 29 wherein said biasing device is a lock spring. 34. A fluid transfer device as set forth in claim 1 including a collar having an inner surface being threaded and a plurality of ball bearings arranged between said collar and said housing to rotatably couple said collar to said housing.

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Fluid transfer device with lock

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Fluid transfer device with lock

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이 특허를 인용한 특허 (3)

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