Patent · US Expired

Glass for metal seal

US4071658A · kind A · utility

4Cited by
4References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 3, 1976
Grant dateJan 31, 1978
Priority date
Expiry dateDec 3, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12972
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A composite metallic article for effecting a seal with glass, said article comprising a nickel-iron alloy core portion, a low carbon steel alloy sheath portion bonded to the core, and a uniformly thick shell portion of a glass-wetting material bonded about the sheath. A method for making the article is also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.