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US 12,553,518 B2Granted
Ring seal with trough
AssigneeMicroflex Technologies LLC
InventorGregory Doyle
Life of this patent
Estimating the term…
Abstract
A ring seal includes an annular body defining an axial hole therethrough for fluid passage in an axial direction and having a radial plane that is perpendicular to the axial direction. An axial side of the ring seal includes deformable annular protrusions extending from the annular body in an axial direction to first and second apexes, which are configured to deform upon engagement with a first planar sealing surface and define a trough therebetween to engage a first annular rounded sealing protrusion or ring. So configured, the ring seal can seal two different types of flow components.
Claims20
A metallic ring seal comprising:
- an annular body defining an axial hole therethrough for fluid passage in an axial direction, the annular body having a radial plane perpendicular to the axial direction and having:
- a radial outer face with a generally C-shaped cross section groove, a plurality of bores disposed therein, or both the generally C-shaped cross section groove and the plurality of bores;
- a first sealing side on a first axial end of the annular body, the first sealing side including:
- a first deformable annular protrusion extending from the annular body in the axial direction to a first apex, the first deformable annular protrusion configured to deform upon engagement with a first planar sealing surface,
- a second deformable annular protrusion extending from the annular body in the axial direction to a second apex, the second deformable annular protrusion configured to deform upon engagement with the first planar sealing surface,
- a first trough defined between the first deformable annular protrusion and the second deformable annular protrusion, the first trough extending annularly around the first sealing side, the first trough including an annular trough base, a first outer rising surface, and a first inner rising surface, the first outer rising surface extending radially outward from the trough base to one of the first apex and the second apex, the first inner rising surface extending radially inward from the trough base to the other of the first apex and the second apex, and the first trough configured to engage with a first annular rounded sealing protrusion;
- wherein the first inner rising surface and the first outer rising surface are curved in cross section;
- wherein a distance between the first apex and the second apex is between 0.023 inches and 0.043 inches, and
- wherein the first trough has a maximum depth below the first deformable annular protrusion of between 0.003 and 0.008 inches.
6 more elements
A metallic ring seal comprising:
- an annular body defining an axial hole therethrough for fluid passage in an axial direction, the annular body having a radial plane perpendicular to the axial direction and having:
- a radial outer face with a generally C-shaped cross section groove, a plurality of bores disposed therein, or both the generally C-shaped cross section groove and the plurality of bores;
- a first sealing side on a first axial end of the annular body, the first sealing side including:
- a first deformable annular protrusion extending from the annular body in the axial direction to a first apex, the first deformable annular protrusion configured to deform upon engagement with a first planar sealing surface,
- a second deformable annular protrusion extending from the annular body in the axial direction to a second apex, the second deformable annular protrusion configured to deform upon engagement with the first planar sealing surface,
- a first trough defined between the first deformable annular protrusion and the second deformable annular protrusion, the first trough extending around the first sealing side and configured to engage with a first annular rounded sealing protrusion, the first trough including an annular trough base, a first outer rising surface, and a first inner rising surface, the first outer rising surface extending radially outward from the trough base to one of the first apex and the second apex, the first inner rising surface extending radially inward from the trough base to the other of the first apex and the second apex, wherein the first inner rising surface and the first outer rising surface are curved in cross section,
- wherein a distance between the first apex and the second apex is substantially larger than a maximum depth of the first trough below the first deformable annular protrusion, the distance between the first apex and the second apex and the depth of the first trough permitting the first annular rounded sealing protrusion to be received between the first apex and the second apex and against the trough to deform the trough against the first annular rounded sealing protrusion to form a fluid tight seal with the first annular rounded sealing protrusion.
4 more elements
Dependencies are inferred from the claim text.