Patents Assigned to Corru-Seals Inc.
  • Method of manufacturing metallic spirally wound gaskets
    Patent number: 4189819
    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.
    Type: Grant
    Filed: September 6, 1978
    Date of Patent: February 26, 1980
    Assignee: Corru-Seals Inc.
    Inventor: Terence P. Nicholson