Patents Assigned to Jackson - Kie, Inc.
  • Patent number: 6260414
    Abstract: A cholesteric liquid crystal fluid level indicator that determines the level of a cooled liquid, such as beer, in a closed, opaque keg when placed in thermal contact with the exterior surface of the keg, by producing a color change that is a function of the liquid temperature when the liquid is within a predetermined temperature range, the indicator comprises a multiple level strip having a top transparent layer, liquid crystal layer, a black background layer and an attachment layer employing a protected adhesive on its bottom surface for removably attaching the strip to the keg, the instant invention employs a heat conducting adhesive on the attachment layer and for securing certain layers in the strip, such as the liquid crystal layer.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: July 17, 2001
    Assignee: Jackson - Kie, Inc.
    Inventors: Keith Brown, Chester J. Currie