IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0638954
(2006-12-14)
|
등록번호 |
US-7673653
(2010-04-21)
|
우선권정보 |
DE-20 2004 009 521 U(2004-06-17); DE-20 2006 016 730 U(2006-10-30) |
발명자
/ 주소 |
- Mijers, Jan W. M.
- Hogan, Brendan
- Costello, Kieran
- Carmody, Colm
- Casey, Brendan
|
출원인 / 주소 |
|
대리인 / 주소 |
Brinks Hofer Gilson & Lione
|
인용정보 |
피인용 횟수 :
23 인용 특허 :
62 |
초록
▼
A check valve is provided, including a first hose connector housing defining an entry passage extending into an entry space at least partially defined by an annular valve seat, a second hose connector housing coupled with the first hose connector housing and defining an exit passage, and a generally
A check valve is provided, including a first hose connector housing defining an entry passage extending into an entry space at least partially defined by an annular valve seat, a second hose connector housing coupled with the first hose connector housing and defining an exit passage, and a generally flexible perforated membrane disk positioned between the first and second hose connector housings such that the membrane disk selectively engages the valve seat.
대표청구항
▼
What is claimed is: 1. A check valve for liquid applications comprising: a first hose connector housing defining an entry passage extending into an entry space at least partially defined by an annular valve seat; a second hose connector housing coupled with the first hose connector housing, the sec
What is claimed is: 1. A check valve for liquid applications comprising: a first hose connector housing defining an entry passage extending into an entry space at least partially defined by an annular valve seat; a second hose connector housing coupled with the first hose connector housing, the second hose connector housing defining an exit passage, an outer rim, a plurality of supporting surfaces spaced circumferentially about the exit passage the supporting surfaces defining recesses therebetween, and at least one groove fluidly connecting at least one recess with the exit passage, the second hose connector housing defining a series of discontinuous protrusions spaced circumferentially about the exit passage and extending generally toward the entry passage; and a generally flexible membrane disk clamped between the first and second hose connector housings such that the membrane disk engages the protrusions and selectively engages the valve seat, the membrane disk defining at least one opening located radially outwardly from the valve seat, where the membrane disk is configured to be movable between a seated position, where the entry space and the exit passage are fluidly sealed from each other by the membrane disk, and an unseated position, where the entry space and the exit passage are fluidly connected via the at least one opening; wherein the valve seat is located radially outwardly from the protrusions such that the protrusions about the exit passage circumferentially support the membrane disk toward the entry space and pretensions the membrane disk against the valve seat such that an unseating pressure required to move the membrane disk from the seated position to the unseated position is at least partially determined by the radial distances between the valve seat and the protrusions, and wherein the supporting surfaces each define a first radial portion extending substantially along the radial distance between the exit passage and the outer rim and a second radial portion connected to the first radial portion adjacent the exit passage and extending across a portion of the radial distance between the exit passage and the outer rim, thereby defining a second recess between the first radial portion and second radial portion fluidly connected to the recess between supporting surfaces, wherein the membrane disk opening overlies a recess between the first and second radial portions such that the membrane disk at the unseated position under high differential pressures engages the first and second radial portions. 2. A check valve as in claim 1, wherein the protrusions are configured to permit fluid flow from the opening in the membrane disk to the exit passage. 3. A check valve as in claim 2, wherein the protrusions are generally circumferentially equally spaced. 4. A check valve as in claim 3, wherein the protrusions define a generally crown-shaped formation. 5. A check valve as in claim 4, wherein the protrusions and the second hose connector housing are a single, unitary component. 6. A check valve as in claim 1, wherein the coupled first and second hose connector housings define an annular groove of greater diameter than the annulus of the valve seat, and the membrane disk includes an annular protrusion, wherein the disk annular protrusion is configured to be received in the annular groove defined by the coupled first and second hose connector housings. 7. A check valve for liquid applications comprising: a first hose connector housing defining an entry passage extending into an entry space at least partially defined by an annular valve seat; a second hose connector housing coupled with the first hose connector housing, the second hose connector housing defining an exit passage, an outer rim, a plurality of supporting surfaces spaced circumferentially about the exit passage, wherein each supporting surface includes a projection located within the diameter of the annular valve seat and extending generally toward the entry passage and further includes a first radial portion extending substantially along the radial distance between the exit passage and the outer rim, the supporting surfaces defining recesses therebetween, and at least one groove fluidly connecting at least one recess with the exit passage; and a generally flexible membrane disk clamped between the first and second hose connector housings such that the membrane disk engages the supporting surface projections to pretension the membrane disk against the valve seat and selectively engage the valve seat, the membrane disk defining at least one opening located radially outwardly from the valve seat, where the membrane disk is configured to be movable between a seated position, where the entry space and the recess are fluidly sealed from each other, and an unseated position, where the entry space and the recess are fluidly connected via the at least one opening such as to fluidly connect the entry passage with the exit passage; wherein the membrane disk is positioned such that at least one membrane disk opening overlies at least one recess in the second hose connector housing and the membrane disk at the unseated position under high differential pressures engages the first radial portions and fluidly connects the entry space with the exit passage via the at least one membrane disk opening, the recess, and the groove in the second hose connector housing, and wherein the supporting surfaces each further define a second radial portion connected to the first radial portion adjacent the exit passage and extending across a portion of the radial distance between the exit passage and the outer rim, thereby defining a second recess between the first radial portion and second radial portion fluidly connected to the recess between supporting surfaces, wherein the membrane disk opening overlies the recess between the first and second radial portions such that the membrane disk at the unseated position under high differential pressures engages the first and second radial portions of the supporting surface projections to thereby fluidly connect the entry space with the exit passage via the membrane disk opening, the recess between the first and second radial portions, the recess between supporting surfaces and the groove in the second hose connector housing. 8. A check valve as in claim 7, wherein the second hose connector housing defines a plurality of recesses respectively positioned between adjacent supporting surfaces and a plurality of grooves each fluidly connecting one of the recesses with the exit passage. 9. A check valve as in claim 8, wherein the supporting surfaces each extend generally radially to the outer rim of the second hose connector housing. 10. A check valve as in claim 9, wherein the supporting surfaces define a broadening width along a direction toward an outer rim of the second hose connector housing. 11. A check valve as in claim 8, wherein each of the grooves is positioned between adjacent supporting surfaces. 12. A check valve as in claim 8, wherein the membrane disk defines a plurality of openings located radially outwardly from the valve seat and wherein each of the openings is generally kidney-shaped. 13. A check valve as in claim 12, wherein the second hose connector housing defines six supporting surfaces and the membrane disk defines eight openings. 14. A check valve as in claim 7, wherein the supporting surface projections are positioned on the inner end of the supporting surface and adjacent to the exit passage, and positioned within a radius of the valve seat. 15. A check valve as in claim 7, wherein the supporting surfaces each have at least a portion that define a generally concave surface. 16. A check valve as in claim 7, wherein the coupled first and second hose connector housings define an annular groove of greater diameter than the annulus of the valve seat, and the membrane disk includes an annular protrusion, wherein the disk annular protrusion is configured to be received in the annular groove defined by the coupled first and second hose connector housings. 17. A check valve as in claim 7, wherein the coupled first and second hose connector housings define an annular groove of greater diameter than the annulus of the valve seat, and the membrane disk includes an annular protrusion, wherein the disk annular protrusion is configured to be received in the annular groove defined by the coupled first and second hose connector housings. 18. A check valve as in claim 17, wherein the supporting surfaces each have at least a portion that define a generally concave surface.
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