[특허]Booster valve

Dynamic Air Inc.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Booster valve

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-015/14
미국특허분류(USC)	137/854; 137/843; 137/515.5; 137/533.21
출원번호	US-0030746 (2005-01-06)
등록번호	US-7438090 (2008-10-21)
발명자 / 주소	Steele,James R.
출원인 / 주소	Dynamic Air Inc.
대리인 / 주소	Jacobson & Johnson
인용정보	피인용 횟수 : 4 인용 특허 : 14

초록

A flow valve having sealing member having a first condition for engaging a housing to prevent back flow and a platform for obstructing a flow passage through the flow valve with the platform supporting the sealing member in an out-of-the-way condition to allow fluid to flow through the flow valve.

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I claim: 1. A booster valve comprising: a housing having an inlet and an outlet; a platform located in said housing, said platform located in a flow passage in the booster valve and centrally supported in the housing to permit a peripheral fluid flow past a circumferential edge of the platform; a one-piece resilient sealing member, having an integral flange extending along a central portion of the sealing member and an integral locator post extending from a first side of the sealing member and a further integral post extending from the opposite side of the sealing member, said platform normally supporting said flange with said flange and an inherent resiliency of said resilient member holding a peripheral sealing region of said resilient sealing member in a partially flexed and sealed condition against an annular portion of said housing to form a bias seal to prevent a backflow from said outlet to said inlet, said peripheral sealing region of said sealing member flexing in response to a higher pressure at said inlet than said outlet to permit a fluid pressure differential across said sealing member to bring said peripheral sealing region of said sealing member from said sealed condition to an unsealed condition to thereby permit a booster flow of fluid from said inlet to said outlet, said locator post engaging said platform to maintain said sealing member in a central condition in a flow region of the housing with the locator post and the further locator post coacting to maintain the sealing member in a central condition in the flow region of the housing. 2. The booster valve of claim 1 wherein the sealing member comprises an elastomer with the flange having a greater thickness than the peripheral sealing region of said sealing member. 3. The booster valve of claim 1 wherein the locator post extends into a locator recess on the platform. 4. The booster valve of claim 1 wherein the platform has a beveled peripheral support region. 5. The booster valve of claim 1 wherein the sealing member comprises a flexible disk having a hub. 6. The booster valve of claim 1 wherein said platform supports said sealing member when the sealing member is an unsealed condition to permit flow past a peripheral edge of the sealing member. 7. The booster valve of claim 1 wherein an impingement of fluid on an upstream side of said sealing member directs said sealing member toward said platform with said platform providing a support to maintain the sealing member in an out-of-the-way condition. 8. The booster valve of claim 1 wherein the locator post retains the sealing member from lateral displacement while permitting flexing of said sealing member from a flow condition to a non-flow condition and vice versa. 9. The booster valve of claim 1 wherein the sealing member contains a flexible peripheral sealing region for sealing against said housing. 10. A booster valve comprising: a housing having an inlet and an outlet, said housing including an insert having a set of flow openings for straightening the flow of fluid to flow therethrough with said insert including a locator to maintain the sealing member in a central condition in the flow passage; a platform located in said housing, said platform located in a flow passage in the booster valve; a one-piece sealing member having a top surface for impingement of the flow of fluid through the insert, said sealing member having a locator post extending from a first side of said resilient sealing member and a further locator post extending from an opposite side of the resilient sealing member, said platform normally holding a peripheral sealing region of said sealing member in a partially flexed and sealed condition against a portion of said housing to prevent a backflow from said outlet to said inlet, said sealing member having a central region thicker than said peripheral sealing region to enable the central region to withstand a greater pressure without a blow out of the sealing member, said sealing member flexible in response to a higher pressure at said inlet than said outlet to permit a fluid pressure differential across said sealing member to bring said sealing member from said sealed condition to an unsealed condition to thereby permit a booster flow of fluid from said inlet to said outlet. 11. A booster valve comprising: a housing having an inlet and an outlet; a flow insert having a first diameter; a platform located in said housing, said platform located in a flow passage in the booster valve and centrally supported in the housing to permit a peripheral fluid flow past a circumferential edge of the platform; a sealing member wherein the sealing member comprises a disk having a central region of greater thickness than a peripheral region of the sealing member with the diameter of the central region greater or equal to the diameter of the flow insert, said disk having a locator extending from each side of the disk, said platform normally holding a sealing region of said sealing member in a partially flexed and sealed condition against a portion of said housing to prevent a backflow from said outlet to said inlet, said sealing member flexible in response to a higher pressure at said inlet than said outlet to permit a fluid pressure differential across said sealing member to bring said sealing member from said sealed condition to an unsealed condition to thereby permit a booster flow of fluid from said inlet to said outlet. 12. A booster valve comprising: a housing having an inlet and an outlet; a platform located in said housing, said platform located in a flow passage in the booster valve; a resilient sealing member having a central region thicker than an annular peripheral sealing region, said sealing member located between a flow through insert and the platform, whereby an inherent resiliency of said sealing member coacts with said platform to normally hold the annular peripheral sealing region of said sealing member in a partially flexed and sealed condition against a portion of said housing to prevent a backflow from said outlet to said inlet, said sealing member flexible in response to a higher pressure at said inlet than said outlet to permit a fluid pressure differential across said sealing member to bring said sealing member from said sealed condition to an unsealed condition to thereby permit a booster flow of fluid from said inlet to said outlet; and a locator post engaging said platform to maintain said sealing member in a central condition in a flow region of the housing, said locator post is on a first side of the sealing member and a further locator post is located on an opposite side of the sealing member with the locator post and the further locator post coacting to maintain the sealing member in a central condition in the flow region of the housing. 13. A booster valve comprising: a housing having an inlet; a platform located in said housing, said platform located in a flow passage in the booster valve and peripherally spaced from the housing sufficiently so that when a peripheral region of the sealing member is brought into supporting engagement with the platform fluid can flow between the housing and the sealing member to permit peripheral flow past the peripheral edge of the platform; a sealing member, said platform extending axially upward to normally hold a peripheral sealing region of said sealing member in a partially flexed and sealed condition against an annular portion of said housing to prevent a backflow from said outlet to said inlet, said sealing member flexible in response to a higher pressure at said inlet than said outlet to permit a fluid pressure differential across said sealing member to bring said sealing member from said sealed condition to an unsealed condition to thereby permit a booster flow of fluid from said inlet to said outlet; and a locator post engaging said platform to maintain said sealing member in a central condition in a flow region of the housing, said locator post located on a first side of the sealing member and a further locator post located on an opposite side of the sealing member with the locator post and the further locator post coacting to maintain the sealing member in a central condition in the flow region of the housing. 14. A flow valve comprising: a housing having a flow passage therethrough; a platform obstructively positioned in the flow passage in the housing, said platform is a solid disk centrally located in the flow passage to provide a peripheral flow passage therepast; a resilient sealing member, the sealing member normally engaging a sealing region in the housing to prevent a flow of a fluid in a first direction through the flow valve, the sealing member resiliently displaceable onto the platform in response to a flow of fluid in a second direction through the flow valve with the platform supporting the sealant member around the sealing member and the support platform in an out-of-the-way condition, the sealing member supported in the normally sealing condition by the platform, the sealing member comprising an elastomer; a locator integral with the resilient sealing member for engaging a mating locator in the platform to retain the sealing member proximate the platform; and a further locator integral with the resilient sealing member for engaging a flow insert to further restrain the sealing member from lateral movement while permitting axial displacement of the sealing member. 15. A pneumatic conveying system comprising: a first bin; a second bin; a pneumatic conveying line connecting said first bin to said second bin; a source of air; a booster valve having an inlet and an outlet with the inlet connected to said source of air and said outlet connected to said pneumatic conveying line, said booster valve having a flow passage therein partially obstructed by a platform and a sealing member having an inherent resiliency sufficient to normally maintain the flow passage in a closed condition, said platform having a peripheral edge spaced from a circumferential region of said booster valve sufficiently so that when a peripheral region of the sealing member is brought into supporting engagement with the platform fluid can flow between said booster valve and said sealing member to permit peripheral flow past said peripheral edge, said sealing member displaceable onto the platform in response to a pressure in the conveying line falling below the pressure of the source of air to allow air to flow around the sealing member supported on the platform and into the conveying line to enhance the flow of materials through the conveying lines. 16. The pneumatic conveying system of claim 15 wherein the platform includes a locator and the sealing member includes a locator to prevent lateral displacement of said sealing member while allowing an axial displacement of said sealing member. 17. The pneumatic conveying system of claim 16 wherein the platform supports the sealing member in a sealing condition against the housing when there is no pressure differential between the inlet and the outlet. 18. A booster valve comprising: a housing having an inlet and an outlet; a resilient one-piece sealing member in said housing, said housing including an insert for fluid to flow therethrough with said insert including a locator to maintain the sealing member in a central condition in a flow passage, said resilient sealing member including a locator post extending from a first side of said resilient sealing member and a further locator post extending from an opposite side of the resilient sealing member, said resilient sealing member having a peripheral sealing region engaging an annular portion of the housing when pressure are equal on opposite sides of said sealing member to form a seal to isolate a fluid in the inlet from a fluid in the outlet while maintaining a central region of said sealing member in a spaced unsealed condition from said insert with said sealing member responsive to a higher pressure at said inlet than said outlet to overcome said seal and displace said sealing member from a sealed condition to an open condition to thereby permit a booster flow of fluid from said inlet to said outlet. 19. The booster valve of claim 18 including a platform located in said housing, said platform located in a flow passage in the booster valve to hold the sealing member in an-out-of-the way condition as a fluid flows from said inlet to said outlet. 20. The booster valve of claim 18 wherein the resilient sealing member includes a fabric reinforcement therein. 21. The booster valve of claim 18 wherein the flexing of said flexible sealing member is maintained solely by the support of the sealing member on a platform. 22. The booster valve of claim 18 wherein a higher pressure at said outlet than at said inlet displaces the sealing member from a bias condition to the sealed condition wherein the sealing member includes a further sealing that blocks off a fluid inlet port to thereby inhibit flow through said booster valve. 23. The booster valve of claim 19 wherein a higher pressure at said inlet than said outlet generates sufficient force to overcome a bias seal to permit fluid to flow through said valve. 24. A booster valve comprising: a housing having an inlet and an outlet a resilient sealing member in said housing, said housing including an insert for fluid to flow therethrough with said insert including a locator to maintain the sealing member in a central condition in a flow passage, said resilient sealing member at least partially flexed along a peripheral region to thereby form a bias seal when an inlet pressure and an outlet pressure are equal to isolate a fluid in the inlet from a fluid in the outlet with said sealing member responsive to a higher pressure at said inlet than said outlet to overcome said bias seal and displace the peripheral region of said sealing member from the bias seal condition to an open condition without displacing a central region of the sealing member to thereby permit a booster flow of fluid from said inlet to said outlet; a locator extending from a first side of the sealing member and a further locator extending from the second side of the sealing member to maintain the sealing member in a central condition in the flow passage as the sealing member is displaced from a sealed condition to an open condition. 25. A booster valve seal comprising: a resilient member located between a flow through insert and a platform of a booster valve housing, said resilient member extending radially outward from a central axis, said member having a central sealing region and a peripheral sealing region for sealing engagement wherein said central sealing region is maintained in a fixed position by said platform when an inlet pressure and an outlet pressure are equal with the peripheral sealing region flexes in response to a higher pressure at said inlet than at said outlet to allow a flow of fluid therepast; a locator positioned at the central axis on a first side of the resilient member; and a further locator extending from a second side of the resilient member, said locator and said further locator coacting to restrain the resilient member from lateral displacement. 26. The booster valve seal of claim 25 wherein the booster valve seal comprises a one piece elastomer. 27. The booster valve seal of claim 25 wherein the booster valve seal comprises a circular disk. 28. The booster valve seal of claim 25 wherein the central sealing region of the resilient member is thicker than the peripheral sealing region of the booster valve seal to thereby inhibit blowout. 29. The booster valve seal of claim 25 including a reinforcing member embedded therein.

이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 4

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특허 상세정보

Booster valve

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이 특허에 인용된 특허 (14)

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Booster valve

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이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 4

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