Probe for sensing the presence of liquid in a container

Details Probe for sensing the presence of liquid in a container Probe for sensing the presence of liquid in a container

1990-03-12

1991-10-15

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

Specific condition

73304R, 7386424, 324663, G08B 2100

Patent

active

050578235

ABSTRACT:
The present invention is a liquid sensing device used for in determining the presence or absence of liquid in a container by the presence or absence of electrical current flow between two conductive probes. Moreover, the present invention prevents the false indication of liquid as can result from the presence of foam, or from bridging of the probes at the proximal ends thereof. A main body portion is formed of an electrically conductive material and has a probe channel extending therethrough. A non-conductive plug is inserted into the proximal end of the probe channel and provides for the retaining of a conductive probe that extends along the central axis of the probe channel. An end cap is secured to the distal end of the main body and covers the distal end of the probe channel for preventing foam access into the probe channel. An inlet port is formed through the main body into the probe channel at the distal end thereof for allowing restricted access of the liquid into the probe channel when the present invention is inserted into the container. The proximal end plug includes an air tight cavity that physically isolated the proximal ends of the probe and the conductive main body from the liquid.

REFERENCES:
patent: 2426252 (1947-08-01), Thomson
patent: 2792566 (1957-05-01), Shanhouse et al.
patent: 3131335 (1964-04-01), Berglund et al.
patent: 4227173 (1980-10-01), Clark
patent: 4503383 (1985-03-01), Agar et al.
patent: 4759475 (1988-07-01), Munthe
patent: 4806847 (1989-02-01), Atherton et al.
patent: 4902962 (1990-02-01), Ishikawa

Affiliated with

Also associated with

Rating

Probe for sensing the presence of liquid in a container does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Probe for sensing the presence of liquid in a container, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probe for sensing the presence of liquid in a container will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-993723