Patents by Inventor Bruce Butler Wright

Bruce Butler Wright 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).

  • Comparator for time-temperature indicator
    Patent number: 6737274
    Abstract: A comparator for use with a time-temperature indicator wherein the time-temperature indicator includes an active portion having an initial color and which undergoes chemical changes as time elapses and at a rate related to the temperature of the surrounding environment and wherein the chemical changes produce changes in the color of the active portion. The comparator comprises a substantially planar support member, and a plurality of comparator stages located on the support member. Each comparator stage comprises a first portion having a reference color and a second portion having a predetermined color that is the same as one of the colors to which the active portion of the time-temperature indicator changes.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: May 18, 2004
    Assignee: United States of America as represented by the Secretary of the Army
    Inventor: Bruce Butler Wright
  • COMPARATOR FOR TIME-TEMPERATURE INDICATOR
    Publication number: 20040092023
    Abstract: A comparator for use with a time-temperature indicator wherein the time-temperature indicator includes an active portion having an initial color and which undergoes chemical changes as time elapses and at a rate related to the temperature of the surrounding environment and wherein the chemical changes produce changes in the color of the active portion. The comparator comprises a substantially planar support member, and a plurality of comparator stages located on the support member. Each comparator stage comprises a first portion having a reference color and a second portion having a predetermined color that is the same as one of the colors to which the active portion of the time-temperature indicator changes.
    Type: Application
    Filed: February 4, 1999
    Publication date: May 13, 2004
    Inventor: BRUCE BUTLER WRIGHT