Liquid level alarm for remotely indicating when less than a pred

Details Liquid level alarm for remotely indicating when less than a pred Liquid level alarm for remotely indicating when less than a pred

1980-04-07

1981-09-15

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

73308, 200 84C, G08B 2100

Patent

active

042900590

ABSTRACT:
The present invention provides an improvement by adaptation of a rising stem fuel oil gauge for indicating, at a remote location, the quantity of fuel in oil storage tanks commonly used in homes and businesses. The improvement includes a magnet carried on a horizontally positioned level indicating disc, which is attached to the upper end of a vertically rising stem and enclosed within a transparent tube. Markings on the tube correspond to the quantity of fuel oil within the storage tank and the alignment of the indicating disc with a specific marking indicates the fuel oil quantity at any given time. A magnetically actuated reed switch is mounted to the exterior of the tube at a predetermined position, and a power supply and remote alarm are coupled to the switch. When the level of the indicating disc is near the position at which the switch is mounted, the magnet carried on the disc actuates the switch which in turn actuates the remote alarm. The system thus provides an alarm when the quantity of fuel within the storage tank corresponds to that predetermined quantity corresponding to the level at which the magnetic switch is mounted on the tube.

REFERENCES:
patent: 3359799 (1967-12-01), Lubin
patent: 3942526 (1976-03-01), Wilder et al.

Affiliated with

Also associated with

Rating

Liquid level alarm for remotely indicating when less than a pred 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 for remotely indicating when less than a pred, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid level alarm for remotely indicating when less than a pred will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-393138