Ring seal having sealing lobes
First Claim
Patent Images
1. A ring seal comprising:
- a body portion which is annular, circumferentially continuous, has an axial axis and an exterior surface of the body portion and in an uncompressed state, has a circumferentially continuous first sealing lobe projecting axially outwardly from said exterior surface of the body, and a circumferentially continuous second sealing lobe axially spaced from and opposed to the first sealing lobe and projecting axially outwardly from said exterior surface of the body, the second sealing lobe shares an axial centerline with the first sealing lobe which axial centerline is parallel to said axial axis of said body portion, and the first and second sealing lobes project axially outwardly relative to each other; and
a circumferentially continuous tail portion disposed radially inwardly of the sealing lobes and projecting axially outwardly from the body.
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Abstract
A ring seal includes a body portion and a tail portion extending from the body portion. The body portion has, when viewed in cross-section and in an uncompressed state, an axially outboard surface and an axially inboard surface. The outboard surface defines a first sealing lobe, and the inboard surface defines a second sealing lobe that shares an axial centerline with the first sealing lobe.
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Citations
19 Claims
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1. A ring seal comprising:
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a body portion which is annular, circumferentially continuous, has an axial axis and an exterior surface of the body portion and in an uncompressed state, has a circumferentially continuous first sealing lobe projecting axially outwardly from said exterior surface of the body, and a circumferentially continuous second sealing lobe axially spaced from and opposed to the first sealing lobe and projecting axially outwardly from said exterior surface of the body, the second sealing lobe shares an axial centerline with the first sealing lobe which axial centerline is parallel to said axial axis of said body portion, and the first and second sealing lobes project axially outwardly relative to each other; and a circumferentially continuous tail portion disposed radially inwardly of the sealing lobes and projecting axially outwardly from the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An assembly comprising:
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a fuel tank defining an opening; a plug mounted to the fuel tank in the opening, the plug having an axial axis, a radial flange extending radially beyond a circumference of the opening and an axial flange extending axially into the opening; and a ring seal disposed between the fuel tank and the plug to form a sealed joint thereat, the ring seal comprising; a body portion which is annular, circumferentially continuous, in cross-section and in an uncompressed state has an axially outboard exterior surface defining a first sealing lobe to bear against the radial flange, and having an axially inboard exterior surface defining a second sealing lobe to bear against the fuel tank, wherein the first sealing lobe and the second sealing lobe are axially opposed, axially spaced apart, and share an axial centerline parallel to said axial axis, and the first and second sealing lobes project axially outwardly relative to each other; and a circumferentially continuous tail portion disposed radially inwardly of the sealing lobes and projecting axially outwardly from the body portion and having a radially inward surface defining a planar wall to bear generally flush against the axial flange to help maintain a position of the ring seal with respect to the fuel tank and the plug. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification