Coining seal
OwnerLloyd Manceboinventor
Life of this patent
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Abstract
A bakeable high pressure-vacuum seal is provided in which an inductile sealing element having a butterfly shaped crosssection with protruding sharp edges at each of the four corners, is sandwiched between two ductile sealing elements, the sandwiched assembly then being compressed between the surfaces of the flange elements of a high pressure or high vacuum vessel to coin the ductile sealing element into the surface of the inductile sealing element as well as the surfaces of the flange elements.
Claims6
A bakeable high pressure-vacuum seal to be compressed between two planar surfaces comprising
- a first generally inductile sealing element having a first sealing surface defining a first pair of protruding sharp edges and a second sealing surface defining a second pair of protruding sharp edges,
- a second generally ductile sealing element adapted to match the shape of said first sealing element and be compressed against said first sealing surface engaging both sharp edges of said first pair of protruding sharp edges, and
- a third generally ductile sealing element adapted to match the shape of said first sealing element and be compressed against said second sealing surface engaging both sharp edges of said second pair of protruding sharp edges,
- a second and third sealing elements being disposed between said two planar surfaces and compressed together thereby.
A bakeable high pressure-vacuum seal adapted to be compressed between two planar surfaces comprising
- a first generally inductile sealing element having first and second sealing surfaces disposed on opposite sides of said first sealing element
- means defining a first groove having its two outer edges defining generally equal height protruding sharp edges disposed longitudinally along said first sealing surface,
- means defining a second groove having its two outer edges defining generally equal height protruding sharp edges disposed longitudinally along said second sealing surface,
- a second generally ductile sealing element adapted to match the shape of said first sealing element and be compressed against said first sealing surface the volume of said second sealing element being greater than the volume of said first groove,
- a third generally ductile sealing element adapted to match the shape of said first sealing element and be compressed against said second sealing surface the volume of said third sealing element being greater than the volume of said second groove,
- said three sealing elements being disposed between said two planar surfaces and compressed together whereby said protruding sharp edges are spaced apart from said planar surfaces.
Dependencies are inferred from the claim text.