Method of manufacturing metallic spirally wound gaskets
AssigneeCorru-Seals Inc.
InventorTerence P. Nicholson
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Abstract
For manufacturing a metallic spirally wound gasket having an outer centring ring it is proposed spirally to coil a corrugated strip of metallic material to form a sealing element of desired diameter and to surround the thus formed sealing element with a centring ring which is or has been formed by spirally coiling a metal strip which is of greater thickness than the sealing element strip and has a corrugated cross-section such that adjacent turns of the spiral fit without clearance one against the other.
Claims4
A method of manufacturing a metallic spirally wound gasket having an outer centring ring which comprises the steps of spirally coiling a corrugated strip of metallic material to form a sealing element of desired diameter, and surrounding the thus formed sealing element with a centring ring which is or has been formed by spirally coiling a metal strip which is of greater thickness than the sealing element strip and has a corrugated cross-section such that adjacent turns of the spiral sealing element and centring ring fit, without clearance one against the other.
Dependencies are inferred from the claim text.