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US 4,219,204 AGranted
Anti-extrusion seals and packings
AssigneeUtex Industries, Inc.
InventorFrederick B. Pippert
Life of this patent
Estimating the term…
Abstract
A seal or packing, usable in static or dynamic applications, the seal or packing having a body section, and an anti-extrusion section contiguous and, preferably bonded, to at least a portion of said body section, the anti-extrusion section being comprised of a knitted material formed from interlocked filaments or wires, at least some of which are metallic in nature.
Claims46
An anti-extrusion sealing device comprising:
- a generally non-metallic body section, said body section having at least one sealing surface, and
- an anti-extrusion section contiguous at least a portion of said body section, said anti-extrusion section serving to resist extrusion forces acting on said body section adjacent said anti-extrusion section, said anti-extrusion section being comprised of a knitted material, at least some of the filaments of said knitted material being metallic in nature.
An anti-extrusion sealing device comprising:
- a generally non-metallic body section;
- at least one sealing lip section attached to said body section;
- and
- an anti-extrusion section contiguous at least a portion of said body section, said anti-extrusion section serving to resist extrusion forces acting on said body section adjacent said anti-extrusion section, said anti-extrusion section being comprised of a knitted material, at least some of the filaments of said knitted material being metallic in nature.
1 more element
A strip packing member comprising:
- an elongate, generally non-metallic body section, and body section having at least one sealing surface, and
- an anti-extrusion section bonded to at least a portion of said body section, said anti-extrusion section serving to resist extrusion forces acting on said body section adjacent said anti-extrusion section, said anti-extrusion section being comprised of a knitted material, at least some of the filaments of said knitted material being metallic in nature.
Dependencies are inferred from the claim text.