Battery deterioration indicator for an electronic desk top calcu

Details Battery deterioration indicator for an electronic desk top calcu Battery deterioration indicator for an electronic desk top calcu

1978-03-30

1980-05-13

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340636, 340691, 340715, 340756, G06F 314

Patent

active

042031036

ABSTRACT:
A battery deterioration indicator has a plurality of indication regions indicating a battery life when a battery voltage falls to a voltage corresponding to a predetermined different voltage level. The indicator is capable of detecting the drop of the battery voltage which shows the battery deterioration and indicating in turn the deteriorating degrees of the battery in the order of from a smaller degree of deterioration to a larger. Accordingly, users may know the battery deterioration by seeing signs indicated on the indicator long enough before the battery life runs out to secure a replacement and at the same time may know how long the remaining battery life will last.

REFERENCES:
patent: 3898790 (1975-08-01), Takamune et al.
patent: 4010456 (1977-03-01), Erni
patent: 4020414 (1977-04-01), Paredes
patent: 4024415 (1977-05-01), Matsuura
patent: 4037399 (1977-07-01), Chihara
patent: 4052717 (1977-10-01), Arnold et al.
patent: 4074515 (1978-02-01), Asano

Affiliated with

Also associated with

Rating

Battery deterioration indicator for an electronic desk top calcu 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 deterioration indicator for an electronic desk top calcu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery deterioration indicator for an electronic desk top calcu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-932157