Patents by Inventor Thomas Ian Bradshaw

Thomas Ian Bradshaw has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for monitoring vapor concentration at a phase interface
    Patent number: 4063452
    Abstract: Method of monitoring and indicating the concentration of vapor components at a phase interface comprising sampling vapor at the vapor source phase interface, comparing the vapor concentration in the sample with a standard, and indicating the concentration of the vapor relative to the standard. A monitoring device is disclosed which comprises a sensing means and means for responsively coupling the sensing means to the vapor source phase to be monitored so that a representative vapor sample is presented to the sensing means. The method and device disclosed herein can be advantageously used to monitor volatile components, especially moisture, available to potted plants.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: December 20, 1977
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Thomas Ian Bradshaw