Patents Assigned to S. Brannan & Sons, Ltd.
  • Maximum/minimum thermometer
    Patent number: 7011445
    Abstract: This invention relates to maximum/minimum thermometer of the type comprising an expansion liquid, a transfer liquid and indexes for recording the maximum and minimum temperatures. Described in particular are new transfer liquids designed to replace conventionally used mercury and new indexes suitable for use in the disclosed thermometers.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: March 14, 2006
    Assignee: S. Brannan & Sons, Ltd.
    Inventors: John Montgomery Hamilton, Peter Graham Perkins