Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for a pipe – conduit – or cable
Reexamination Certificate
2006-02-07
2006-02-07
Pickard, Alison K. (Department: 3673)
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal for a pipe, conduit, or cable
C277S637000, C285S379000, C285S108000
Reexamination Certificate
active
06994356
ABSTRACT:
A gasket seal for piping and equipment flanges comprises a sealing ring and a centralization ring, preferably concentric rings made of a metallic alloy. The sealing ring has an outer contour surface having a substantially L-shaped cross-section comprising an innermost portion and an outermost portion extending axially and a radial portion interconnecting the inner and the outer portions. The centralization ring has an inner contour surface defining a central opening, substantially coincident with the innermost portion of the outer contour surface of the sealing ring, so that the latter can be fitted into the opening as far as the radial portion of its outer contour surface. A deformation is made on the innermost portion of the outer contour surface of the sealing ring, forming a projection, whereby the centralization ring can be retained between the projection and radial portion without the centralization ring needing to be separated and then welded.
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Cowan Liebowitz & Latman P.C.
Manegro Administracao e Paticipacoes Ltda
Pickard Alison K.
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