Battery lifetime indicator for a stopwatch

Details Battery lifetime indicator for a stopwatch Battery lifetime indicator for a stopwatch

1985-10-03

1987-09-01

Roskoski, Bernard

Horology: time measuring systems or devices

Power supply details

Electrical

368107, 368113, 368 66, G04B 100

Patent

active

046905685

ABSTRACT:
In an indication hand type stopwatch energized by a battery having a second indication hand, a minute indication hand and an hour indication hand, a battery lifetime display has a battery lifetime detective section for monitoring a voltage of the battery and a battery lifetime display circuit means connected to the battery lifetime detective section and for controlling the driving of the minute indication hand serving as a battery lifetime indication hand for displaying a battery lifetime while the stopwatch is in a non-counting mode.
In the case that the battery voltage is over the predetermined voltage, the minute indication is driven by 15 steps clockwise in response to the operation of an external operation switch and in the case that the battery voltage is below the predetermined voltage, the minute indication is driven by 3 steps.

REFERENCES:
patent: 4219999 (1980-09-01), Ichikawa
patent: 4244039 (1981-01-01), Laesser
patent: 4316274 (1982-02-01), Ushikoshi
patent: 4537514 (1985-08-01), Moriya

Affiliated with

Also associated with

Rating

Battery lifetime indicator for a stopwatch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Battery lifetime indicator for a stopwatch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery lifetime indicator for a stopwatch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1262176