Seal material
AssigneeFlexitallic Investments, Inc.
InventorsJohn R Hoyes, Michael Bulmer, Liam C Thorpe
Life of this patent
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Abstract
A material stock from which seals and packings may be formed is described; the material stock being relatively soft and compressible and cross section having a construction comprising a plurality of interlaced, as hereinbefore defined, flat section tapes having associated therewith a reinforcement. The tapes may include exfoliated graphite, paper, PTFE, mica, vermiculite as appropriate. The seal stock may have any desired cross sectional shape.
Claims45
A material stock from which seals and packings may be formed, the material stock being relatively soft and compressible and having a density below 1.0 g/cc, wherein the material stock comprises a plurality of substantially flat section tapes that are interlaced together whereby both sides of each tape contact adjacent tapes, each tape of said plurality having a width greater than 6 mm and a reinforcement associated therewith.
A material sock for seals and packings comprising:
- a plurality of tapes each tape of said plurality having a substantially flat, rectangular cross-sectional shape and having a width dimension greater than 6 mm, wherein said tapes are interlaced together whereby both sides of each tape contact adjacent tapes and such that a density of said interlaced plurality of tapes does not exceed 1.0 g/cc;
- and
- a reinforcement associated with each of said tapes.
A seal or packing ring comprising:
- a plurality of tapes, each tape of said plurality having a substantially rectangular cross-sectional shape and having a width dimension greater than 6 mm, wherein said tapes are interlaced together such that a density of said interlaced plurality of tapes does not exceed 1.0 g/cc;
- and
- a reinforcement associated with each of said tapes.
Dependencies are inferred from the claim text.