Removable Or Variable Pressure Roller Or Particular Roller Texture, Composition, Configuration, Or Spacing Patents (Class 396/584)
  • Test pouch
    Patent number: 5674653
    Abstract: Method and an apparatus for measuring the development parameter of a light-sensitive fluid in a white-light environment. The apparatus comprises first and second flexible light-impervious sheets superimposed and sealed together to form a pouch containing a plurality of chambers having flow paths therebetween, wherein the chambers are sealed with burstable seals allowing fluid communication between the chambers upon the application of a predetermined pressure.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: October 7, 1997
    Assignee: Eastman Kodak Company
    Inventors: John B. Chemelli, Walter J. Bernecker, Craig A. Caprio