In accordance with an example embodiment, a fluid connector may include an inner face, outer face, annular groove extending below the inner face and the outer face, and annular seal installed in the groove. The groove may include an inner wall, bottom wall, outer wall, and lip. The annular seal, in
In accordance with an example embodiment, a fluid connector may include an inner face, outer face, annular groove extending below the inner face and the outer face, and annular seal installed in the groove. The groove may include an inner wall, bottom wall, outer wall, and lip. The annular seal, in an undeformed state, may include a first convex surface, a second concave surface, a third convex surface, and a fourth concave surface. The second surface may be positioned radially inward of the first surface and radially outward of the third surface. The third surface may be between the second surface and a fourth surface, radially inward of the first surface. The fourth surface may be positioned radially outward of the third surface and radially inward of the first surface.
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1. A fluid connector comprising: an inner face;an outer face;an annular groove positioned radially outward of the inner face and radially inward of the outer face, the groove extending below the inner face and the outer face, the groove comprising: an inner wall between the inner face and a bottom w
1. A fluid connector comprising: an inner face;an outer face;an annular groove positioned radially outward of the inner face and radially inward of the outer face, the groove extending below the inner face and the outer face, the groove comprising: an inner wall between the inner face and a bottom wall;the bottom wall between the inner wall and an outer wall;the outer wall between the bottom wall and a lip, the outer wall substantially parallel to the inner wall; andthe lip between the outer wall and the outer face, the lip protruding radially inward beyond at least a portion of the outer wall; andan annular elastomeric seal installed in the groove, the seal, in an undeformed state, comprising: a first surface which is convex, the first surface forming a radially outermost portion of the seal;a second surface which is concave, the second surface adjacent to the first surface and adjacent to a third surface, the second surface positioned radially inward of the first surface and radially outward of the third surface;the third surface which is convex, the third surface adjacent to the second surface and adjacent to a fourth surface, the third surface forming a radially innermost portion of the seal; andthe fourth surface which is concave, the fourth surface adjacent to the third surface and adjacent to the first surface, the fourth surface positioned radially outward of the third surface and radially inward of the first surface. 2. The fluid connector of claim 1, wherein the groove conforms to the dimensional requirements of a standard half-dovetail groove in SAE J1453-1. 3. The fluid connector of claim 1, wherein a cross-section of the undeformed seal is substantially symmetric about an axis bisecting the first surface and the third surface. 4. The fluid connector of claim 3, wherein, for the cross-section of the undeformed seal, an average radius of each of the second surface and the fourth surface is between 80% and 120% of an average radius of the first surface, and an average radius of the third surface is greater than 120% of the average radius of the first surface. 5. The fluid connector of claim 3, wherein, for the cross-section of the undeformed seal, a radius of each of the second surface and the fourth surface is between 80% and 120% of a radius of the first surface, and a radius of the third surface is at least double the radius of the first surface. 6. The fluid connector of claim 3, wherein, for the cross-section of the undeformed seal, the first surface, the second surface, and the fourth surface are each circular arcs having a first radius. 7. The fluid connector of claim 6, wherein the third surface comprises: a first portion which is convex, the first portion between the second surface and a second portion;a second portion which convex, the second portion between the first portion and a third portion; anda third portion which is convex, the third portion between the second portion and the fourth surface;wherein, for the cross-section of the seal, a radius of the first portion is equal to a radius of the third portion, and a radius of the second portion is greater than the radius of the first portion. 8. The fluid connector of claim 3, wherein the outer diameter of the seal is greater than an inner diameter of the lip. 9. The fluid connector of claim 8, wherein contact between the seal and the lip deforms the first surface downward relative to the axis when the seal is installed in the groove. 10. The fluid connector of claim 9, wherein the lip retains the seal in the groove when the seal is installed in the groove. 11. The fluid connector of claim 9, wherein the outer diameter of the seal is substantially the same as a diameter of the outer wall. 12. The fluid connector of claim 9, wherein the inner diameter of the seal is greater than a diameter of the inner wall. 13. The fluid connector of claim 12, wherein no portion of the seal makes contact with the inner wall when the seal is installed in the groove. 14. The fluid connector of claim 1, wherein the fluid connector is included in a fluid joint, the fluid joint also comprises a mating fluid connector, the mating fluid connector comprises an opposing face facing at least one of the inner face and the outer face when the fluid joint is in a fastened position, and the seal is compressed between the bottom wall and the opposing face when the fluid joint is in the fastened position. 15. The fluid connector of claim 1, wherein, when the seal is installed in the groove, a portion of the fourth surface contacts the bottom wall and forms a space between the fourth surface and the bottom wall. 16. A fluid joint comprising: a first fluid connector comprising: a first face;an annular groove, the groove defined by an inner wall perpendicular to the first face, a bottom wall parallel to and below the first face, an outer wall parallel to and radially outward of the inner wall, and a lip positioned at the top of the outer wall and projecting radially inward from the outer wall; andan annular elastomeric seal comprising, in an undeformed state, an inner convex surface forming the radially innermost portion of the seal, an outer convex surface forming the radially outermost portion of the seal, a first concave surface interconnecting the inner convex surface and the outer convex surface and positioned on a first side of the seal, and a second concave surface interconnecting the inner convex surface and the outer convex surface and positioned on a second side of the seal opposite the first side, the seal being symmetrical about a plane bisecting the inner convex surface and the outer convex surface and defining the first side and the second side of the seal; anda second fluid connector comprising a second face;wherein the seal is installed in the groove with the lip retaining the outer convex surface in the groove, the seal is compressed by contact between its first side and the bottom wall and contact between its second side and the second face when the fluid joint is in a fastened position, the first fluid connector fastened to the second fluid connector via threads when the fluid joint is in the fastened position. 17. The fluid joint of claim 16, wherein a cross-section of the outer convex surface forms a circular arc with a first radius, a cross-section of the first concave surface forms a circular arc with a second radius, and a cross-section of the second concave surface forms a circular arc with a third radius, and the second radius and third radius are each between 80% and 120% of the first radius. 18. A method of fastening a fluid joint, the method comprising: positioning a first face of a first fluid connector opposite a second face of a second fluid connector;moving the first face and the second face toward each other until a threaded surface on first fluid connector can engage a threaded surface on the second fluid connector;fastening the threaded surface on the first fluid connector to the threaded surface on the second fluid connector at least until the second face makes contact with a seal, the seal installed in a groove of the first fluid connector, the groove defined by an inner wall extending between the first face and a bottom wall parallel with the first face, an outer wall substantially parallel with the inner wall and extending from the bottom wall to a lip, and a lip positioned at the opposite end of the outer wall as the bottom wall; andcontinuing to fasten the threaded surface until the seal is compressed between the second face and the bottom wall, the seal comprising, in an undeformed state, an outer convex surface defining an outer diameter of the seal greater than an inner diameter of the lip, an inner convex surface defining an inner diameter of the seal, a first concave surface adjacent to the inner convex surface and adjacent to the outer convex surface on a first side of the seal, and a second concave surface adjacent to the inner convex surface and adjacent to the outer convex surface on a second side of the seal opposite the first side. 19. The method of claim 18, further comprising installing the seal in the groove by placing the undeformed seal above the groove and exerting a downward force on the seal to deform the seal and move it downward until the outer convex surface is below the lip and deformed by the lip so as to retain the seal in the groove. 20. The method of claim 19, further comprising exerting a downward force on the seal until the entirety of the outer convex surface is below the lip.
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이 특허에 인용된 특허 (27)
Sahba Bahman (Warwick RI) Champlin ; Jr. Harry C. (Hopkinton RI) Cory John M. (Old Lyme CT), All-metal, valve sealing mechanism.
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