Automatic testing apparatus for electrical switches

Details Automatic testing apparatus for electrical switches Automatic testing apparatus for electrical switches

1990-02-21

1992-05-26

Harvey, Jack B.

Electricity: measuring and testing

Electromechanical switching device

324423, G01R 3102

Patent

active

051171899

ABSTRACT:
A computer-controlled apparatus (1) for electrical testing of the make-and-break characteristics of electrical switches (15), including characteristics when the switches are actuated very slowly. The apparatus automatically feeds the switches into a test position (16), "breaks them in" by cycling them through many operations, and tests their switching parameters. The amount of hysteresis (54) between a switch actuator's (38) positions at actuation (30) and deactuation (56) is a criterion for sorting the switches. Switches are automatically classified and marked (14) according to their tested characteristics, and sorted into bins (28, 29). Any undesirable electrical "deadbreak" (an excessive transfer delay) during the operation of a double-throw switch's contacts is detectable by both a Timer Method and a Limit Switch Method, and faulty switches are reliably rejected. The apparatus increases accuracy in the testing of switches and reduces human errors such as those caused by fatigue.

REFERENCES:
patent: 3241063 (1966-03-01), Beattie et al.
patent: 3803480 (1974-04-01), Goldbach
patent: 3823366 (1974-07-01), Fabry
patent: 3988664 (1976-10-01), Beery et al.
patent: 4504789 (1985-03-01), Carr et al.

Affiliated with

Also associated with

Rating

Automatic testing apparatus for electrical switches does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic testing apparatus for electrical switches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic testing apparatus for electrical switches will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-422490