Safety system for fluid conduit
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0716307
(2010-03-03)
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등록번호 |
US-8656940
(2014-02-25)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
10 |
초록
▼
A housing at each end of a conduit defines a valve seat. A connector is connected to a valve body in each housing and holds the bodies away from the seats until the conduit fails, after which each body moves into contact with the corresponding seat. A compression zone between each body and the corre
A housing at each end of a conduit defines a valve seat. A connector is connected to a valve body in each housing and holds the bodies away from the seats until the conduit fails, after which each body moves into contact with the corresponding seat. A compression zone between each body and the corresponding seat is sufficiently large to reduce heat generated thereat from adiabatic compression of the fluid flowing therethrough. In a variation, two heat-dissipating ribs are externally positioned on each housing adjacent the compression zone. In another variation, the connector is a generally helical spring within the conduit and sized to be in contact with an interior wall of the conduit so that the spring provides structural strength thereto. In another variation, a third housing is employed as a one-way check valve.
대표청구항
▼
1. A safety system for a fluid conduit comprising: a flexible conduit having first and second ends: a housing at each end of the conduit defining a valve seat, each valve seat normally being a first predetermined distance from the other, and being movable away from the other when the conduit fails,
1. A safety system for a fluid conduit comprising: a flexible conduit having first and second ends: a housing at each end of the conduit defining a valve seat, each valve seat normally being a first predetermined distance from the other, and being movable away from the other when the conduit fails, the housing including a generally cylindrical portion and a generally tapered portion defining the valve seat, the cylindrical portion and the tapered portion meeting at a generally transverse plane; a valve body disposed within each housing, the valve seats being disposed between the valve bodies, the valve bodies and the valve seats cooperating to define valves; a connector connected to each of the valve bodies and holding the valve bodies apart a second distance which is greater than the first distance so that each valve body resides general in the cylindrical portion of the corresponding housing such that the tapered portion of the valve body is spaced from the generally transverse plane until the conduit fails; wherein the connector comprising a generally helical spring residing within the conduit and sized to be in substantially complete contact with an interior wall of the conduit so that the spring provides structural strength to the conduit: and a retainer disposed within each housing and cooperating with the connector to retain the valve bodies against movement to permit fluid to flow through the conduit until the conduit fails, the connector being operative when the conduit fails and the valve seats move away from each other to retain the valve bodies at the second distance so that the valve seats move toward the valve bodies and close the valves, or if the distance between the valve seats does not change, to permit the valve bodies to move toward each other so that the valve bodies move toward the valve seats to close the valves, each valve body moving a third distance into contact with and past the plane and into the tapered portion of the corresponding housing to close the corresponding valve when the conduit fails, the third distance corresponding to the compression zone between the valve body and the corresponding valve seat and being sufficiently large to reduce heat generated in the compression zone from adiabatic compression of the fluid flowing through the compression zone. 2. The system of claim 1 wherein each valve body is disposed between the corresponding retainer and valve seat. 3. The system of claim 1 wherein each housing includes a valve chamber within which resides the corresponding valve body and retainer, the valve chamber defining the corresponding valve seat. 4. The safety system for a fluid conduit of claim 1 the system further comprising two heat-dissipating ribs externally positioned on each housing adjacent the compression zone of the housing to dissipate heat generated thereat, each rib extending generally circumferentially about the housing and generally radially from the housing. 5. The system of claim 4 wherein each valve body is disposed between the corresponding retainer and valve seat. 6. The system of claim 4 wherein the connector comprises an elongated stiff, yet flexible member that extends through the conduit. 7. The system of claim 4 wherein each housing includes a valve chamber within which resides the corresponding valve body and retainer, the valve chamber defining the corresponding valve seat. 8. The system of claim 1 wherein the helical spring has a diameter of about ¼ to ½ inches and the conduit has a length of at least 7 feet, whereby the conduit can be coiled with the spring therein. 9. The system of claim 1 wherein the helical spring has a diameter of about 4 to 8 inches, whereby the conduit cannot be coiled with the spring therein. 10. The safety system for a fluid conduit of claim 1, further comprising a third housing, said third housing having a valve seat and having disposed therein a valve body and retainer, the valve body and valve seat of said third housing cooperating to define a valve; a retainer disposed within said third housing, the third housing being positioned in series with the conduit and coupled to one of the first and second housings to permit fluid to flow through the conduit in a first direction and to prevent flow through the conduit in a second direction opposite the first direction, the valve body of the third housing being untethered and acting as a one-way check valve. 11. The system of claim 10 wherein the first, second, and third housings are substantially identical but the valve body of the third housing being un-tethered. 12. The system of claim 10 wherein the valve of each housing is a poppet valve. 13. The system of claim 10 wherein the valve of each housing is a multi-wedge valve. 14. The system of claim 10 wherein the valve of each housing is a flapper valve. 15. The system of claim 10 wherein the valve body of the third housing is free to slide generally axially within the third housing between a first side where the valve body is generally in stopping contact with the retainer of the third housing and a second side opposite the first side where the valve body is generally in stopping contact with the valve seat of the third housing, according to the flow of fluid through third housing and also through the first and second housings and the conduit. 16. The system of claim 15 wherein the valve body of the third housing as urged by the flow of fluid into stopping contact with the retainer of the third housing is in an open position where the flow of the fluid is not generally impeded by the valve body and retainer, and wherein the valve body of the third housing as urged by the flow of fluid into stopping contact with the valve seat of the third housing is in a closed position where the flow of the fluid is generally impeded by the valve body and valve seat. 17. The system of claim 10 wherein the third housing is coupled to one of the first and second housings by way of one of a length of coupling hose, a pipe, and a length of conduit.
이 특허에 인용된 특허 (10)
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Finona, Michael Santos; Novacoski, James Edward, Break-away device.
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Thomson Jack Gall (Nottingham GBX), Breakaway coupling.
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Gullickson, Zan; Pierson, Nowal, Drive shaft coupling device.
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Holt Earl R. (Rochester MI), Excess flow control valve.
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Cessac, Kevin; Gonzales, Frank; Nimberger, Spence M.; Ward, Robert L., Flexible hose safety kit.
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Lo Bobby C., Frangible quick disconnect coupling.
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Abrams Joseph (Bala Cynwyd PA), Safety system for fluid conduit.
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Abrams, Joseph H., Safety system for fluid conduit.
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Boyd,Richard C., Safety system hose.
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Borton, Jeffre Allen; Lechner, David Michael; Sattelberg, Dennis Herman, Valve with pressurization rate reduction device.
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