Liquid level alarm

Details Liquid level alarm Liquid level alarm

2007-06-12

2007-06-12

Garber, Charles D. (Department: 2609)

Communications: electrical

Condition responsive indicating system

Specific condition

C073S308000

Reexamination Certificate

active

11178468

ABSTRACT:
A liquid level alarm is placed in a tank having a bottom and has a weight, a floating box, an alarm circuit and a cord. The weight is placed on the bottom of the tank. The floating box has a top recess, a passage, a slide and a top cover. The passage communicates with the top recess. The slide is mounted slidably in the passage. The alarm circuit is mounted in the top recess in the floating box and has two contacts, an alarm element, a switch and a spring. The switch is connected to the slide. The spring is connected to the top cover and holds the switch open. The cord is connected to the weight and the slide. When the floating box moves above a predetermined level, the switch with the slide moves down and makes contact with the contacts to activate the alarm element.

REFERENCES:
patent: 3786464 (1974-01-01), Staempfli
patent: 5176552 (1993-01-01), Kuboyama et al.
patent: 6414598 (2002-07-01), Freill et al.
patent: 6486786 (2002-11-01), Chuang
patent: 6558216 (2003-05-01), Yerazunis et al.

Affiliated with

Also associated with

Rating

Liquid level alarm does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid level alarm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid level alarm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3842506