Patent ID: 7333398

Claim:
A device for indicating elapsed time by way of the state of indicators, such indicators being arranged in a plurality of separate groups, each indicator having a first indication state and a second indication state, comprising: a first group of indicators for indicating a first hours digit in the indication of elapsed hours by the count of the indicators in said first indication state; wherein said count is a number representing the value of the first hours digit of said elapsed hours; a second group of indicators for indicating a second hours digit in the indication of elapsed hours by the count of the indicators in said first indication state; wherein said count is a number representing the value of the second hours digit of said elapsed hour; a third group of indicators for indicating a first minutes digit in the indication of elapsed minutes by the count of the indicators in said first indication state; wherein said count is a number representing the value of the first minutes digit of said elapsed minutes; a fourth group of indicators for indicating a second minutes digit in the indication of elapsed minutes by the count of the indicators in said first indication state; wherein said count is a number representing the value of the second minutes digit of said elapsed minutes; and the indication of elapsed hours requiring both the first hours digit and the second hours digit, and the indication of elapsed minutes requiring both the first minutes digit and the second minutes digit, such that the combination of the first hours digit and the second hours digit together with the first minutes digit and the second minutes digit provides an indication of total elapsed time in hours and minutes.