Patents Represented by Law Firm Iran Milton Jones & Associates
  • Patent number: 4011552
    Abstract: A temperature sensor for a food freezer alarm or the like comprises a sensing element such as a thermistor enclosed in a capsule filled with a material (e.g., water-alcohol mixture) that melts and freezes at a predetermined temperature (e.g., 25.degree. F.), with such change of state occurring as a result of change of latent heat content of the material.
    Type: Grant
    Filed: January 7, 1976
    Date of Patent: March 8, 1977
    Assignee: Whitewater Electronics, Inc.
    Inventor: Patric C. Quirke