IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0077950
(2005-03-11)
|
등록번호 |
US-7350833
(2008-04-01)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Ernest D. Buff & Associates, LLC
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
14 |
초록
▼
A flanged joint system connects two pipes disposed along a common axis. A flange having a mating surface terminates each pipe. A gasket assembly comprising an outer annular, substantially rigid retaining ring and a peripheral alignment rim, an inner deformable annular sealing member is interposed be
A flanged joint system connects two pipes disposed along a common axis. A flange having a mating surface terminates each pipe. A gasket assembly comprising an outer annular, substantially rigid retaining ring and a peripheral alignment rim, an inner deformable annular sealing member is interposed between the mating surfaces of the flanges. The flanges and gasket assembly are aligned in mutually coaxial relationship by receipt of the flanges within the alignment rim. The flanges are clamped together with their mating surfaces in axially aligned, facing relationship. The retaining ring limits the impingement of the flanges and prevents overcompression of the deformable material. The joint is reliable and durable, and permits aseptic processing conditions to be maintained. Servicing and gasket replacement are readily accomplished.
대표청구항
▼
What is claimed is: 1. A flanged joint system connecting first and second pipes disposed along a common axis, comprising: a) a first flange terminating said first pipe and a second flange terminating said second pipe, each of said flanges being generally circular and having a flange outside diamete
What is claimed is: 1. A flanged joint system connecting first and second pipes disposed along a common axis, comprising: a) a first flange terminating said first pipe and a second flange terminating said second pipe, each of said flanges being generally circular and having a flange outside diameter and a mating surface, said pipes being oriented such that said mating surfaces are substantially perpendicular to said common axis and in facing, parallel relationship; b) a gasket assembly comprising: (i) an outer annular, substantially rigid retaining ring having opposed axial surfaces abutting at least a portion of said mating surfaces, an alignment rim encircling an outside periphery of said ring and extending axially from each of said axial surfaces, and a retaining shoulder projecting radially inward, said alignment rim being sized to slippably receive said outside diameter of said flanges on opposite sides of said retaining ring; (ii) an inner deformable annular sealing member having a radially inner annular portion having a rectangular cross-section and sealing surfaces on opposed axial sides of said rectangular portion, and an encircling sealing shoulder portion that projects radially outward, said sealing shoulder portion being shaped to receive said retaining shoulder and being removably engaged therewith; and said gasket assembly being interposed between said flanges and aligned coaxially therewith by receipt of said outside diameter within said alignment rim; c) a clamp means for urging said flanges together axially, whereby said deformable annular sealing member is compressed to a preselected extent, the compression being restricted by abutment of said axial surfaces of said retaining ring with said mating surfaces of said flanges; and wherein said retaining shoulder and said sealing shoulder portion provide an angulated step engagement. 2. A flanged joint system as recited by claim 1, wherein said inner annular sealing member is resiliently deformable. 3. A flanged joint system as recited by claim 1, wherein said inner annular sealing member is composed of an elastomer. 4. A flanged joint system as recited by claim 1, wherein said sealing member is composed of a material selected from the group consisting of PTFE, PFA, polysteel, Buna, EPDM, silicone, FKM, PEEK, and CTFE materials. 5. A flanged joint system as recited by claim 1, wherein said inner angular sealing member is composed of a composite material comprising a polymer. 6. A flanged joint system as recited by claim 1, wherein said retaining ring is composed of metal. 7. A flanged joint system as recited by claim 1, wherein said retaining ring is composed of a substantially rigid plastic. 8. A flanged joint system as recited by claim 1, wherein said clamp means comprises at least one clamp. 9. A flanged joint system as recited by claim 8, wherein said flanges have tapered outer sections and said clamp means comprises a split-ring clamp having an inner circumferential surface with tapered surface portions that encircle and securingly engage said tapered outer sections. 10. A flanged joint system connecting first and second pipes disposed along a common axis, comprising: a) a first flange terminating said first pipe and a second flange terminating said second pipe, each of said flanges being generally circular and having a flange outside diameter and a mating surface, said pipes being oriented such that said mating surfaces are substantially perpendicular to said common axis and in facing, parallel relationship; b) a gasket assembly comprising: (i) an outer annular, substantially rigid retaining ring having opposed axial surfaces abutting at least a portion of said mating surfaces, an alignment rim encircling an outside periphery of said ring and extending axially from each of said axial surfaces, and a retaining shoulder projecting radially inward, said alignment rim being sized to slippably receive said outside diameter of said flanges on opposite sides of said retaining ring; (ii) an inner deformable annular sealing member having a radially inner annular portion having a rectangular cross-section and sealing surfaces on opposed axial sides of said rectangular portion, and an encircling sealing shoulder portion that projects radially outward, said sealing shoulder portion being shaped to receive said retaining shoulder and being removably engaged therewith; and said gasket assembly being interposed between said flanges and aligned coaxially therewith by receipt of said outside diameter within said alignment rim; c) a clamp means for urging said flanges together axially, whereby said deformable annular sealing member is compressed to a preselected extent, the compression being restricted by abutment of said axial surfaces of said retaining ring with said mating surfaces of said flanges; and wherein said retaining shoulder and said sealing shoulder portion provide a rounded and lobed engagement. 11. A flanged joint system as recited by claim 10, wherein said inner annular sealing member is resiliently deformable. 12. A flanged joint system as recited by claim 10, wherein said inner annular sealing member is composed of an elastomer. 13. A flanged joint system as recited by claim 10, wherein said sealing member is composed of a material selected from the group consisting of PTFE, PFA, polysteel, Buna, EPDM, silicone, FKM, PEEK, and CTFE materials. 14. A flanged joint system as recited by claim 10, wherein said inner angular sealing member is composed of a composite material comprising a polymer. 15. A flanged joint system as recited by claim 10, wherein said retaining ring is composed of metal. 16. A flanged joint system as recited by claim 10, wherein said retaining ring is composed of a substantially rigid plastic. 17. A flanged joint system as recited by claim 10, wherein said clamp means comprises at least one clamp. 18. A flanged joint system as recited by claim 17, wherein said flanges have tapered outer sections and said clamp means comprises a split-ring clamp having an inner circumferential surface with tapered surface portions that encircle and securingly engage said tapered outer sections.
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