The Perkin-elmer Corporation

Eaton Corporation

Stephen Rowland

Jeffrey E Swensen

John Loyd Spence

Joseph Ilbong Kim

Carmella Ferouz

Brian Bayne

A pressure-energized, annular metallic seal is provided that includes a central annular portion and a pair of annular leg portions extending from the central portion. Each leg portion includes a convex sealing surface lying in sealing plane. One of the leg portions preferably has an annular flange offset from its sealing plane in an axial direction towards the sealing plane of the other leg portion. One of the leg portions preferably has at least one radially extending tab projecting further than adjacent parts of the seal. The seal is preferably manufactured by first cutting a first annular edge in a metallic sheet material, then bending the sheet material substantially into the shape of the seal, and then cutting a second annular edge to complete the shape of the seal. The second annular edge preferably defines the annular flange and/or the at least one tab.

Pressure energized metallic seal

A metallic seal is provided that concentrates the available load over a narrow band to produce a sealing dam over a sufficient width to minimize leakage on a molecular level. The metallic seal has a first annular end section with has a first annular sealing surface, a second annular end section with a second annular sealing surface and an annular center section extending between the first and second annular end sections to form a ring having a central passageway with a center longitudinal axis. The third annular section is frustoconical tube with the first and second annular end sections being contiguously arranged at opposite ends of the annular center section such that sealing loads applied substantially perpendicularly on the first and second annular sealing surfaces primarily deform due to torsional stress of the metallic seal.

Shallow metallic s-seal

A flange and seal assembly is provided with an annular sealing ring and a mounting component. The annular sealing ring is retained as a part of the mounting component. The mounting component has a mounting end with a mounting flange extending outwardly from the mounting end, and an annular seal receiving recess formed in an axial end surface of the mounting end, and a retaining element extending from the mounting end. A portion of the sealing ring is axially retained between the retaining element and the axial end surface of the mounting end.

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Laurel, MD, United States of America

Stephen Rowland