Patents Assigned to Wilbur B. Driver Company
  • Nickel-chromium heating element alloy having improved operating life
    Patent number: 4118224
    Abstract: The addition of about 0.33 weight percent of hafnium to a nickel-chromium heating element alloy having a nominal composition of 20 weight percent chromium, 1.4 weight percent silicon, balance essentially nickel, results in an improved operating life of the alloy.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: October 3, 1978
    Assignee: Wilbur B. Driver Company
    Inventors: Teh Po Wang, Carrol Dean Starr
  • Thermocouple with improved EMF stability
    Patent number: 3972740
    Abstract: A nickel-base thermocouple with improved EMF stability is described, the positive thermoelement of which is a nominal Ni/14.25Cr/1.45Si/.1Mg alloy and the negative thermoelement of which is a nominal Ni/4Si/.1Mg alloy.
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: August 3, 1976
    Assignee: Wilbur B. Driver Company
    Inventors: Carrol Dean Starr, Teh Po Wang