Refrigerant gas leak detector

Details Refrigerant gas leak detector Refrigerant gas leak detector

1993-01-22

1994-09-27

Peng, John K.

Communications: electrical

Condition responsive indicating system

Specific condition

340605, 324455, 324464, G08B 1710

Patent

active

053510372

ABSTRACT:
A refrigerant gas leak detector for detecting the location of leaks of refrigerant gas such as halogen has a sensing tip with a pair of electrodes across which a relatively high voltage is generated to cause a corona current to pass through the electrodes. The voltage applied across the electrodes is varied to maintain the corona current through the electrodes at a substantially constant magnitude. The leak detector includes a gas sensing circuit that detects changes in the concentration of refrigerant gas by sensing the voltage applied to the electrodes. The sensitivity of the gas sensing circuit is automatically varied based on the concentration of refrigerant gas present. The leak detector includes a signal generating circuit that causes a number of audible and visual indications to be generated based on the concentration of refrigerant gas sensed as well as other operating conditions. The leak detector also has a circuit for detecting the presence of an abnormal operating condition, which is assumed to occur when the corona current falls below its substantially constant magnitude.

REFERENCES:
patent: 4282521 (1981-08-01), Lieberman
patent: 4488118 (1984-12-01), Jeffers et al.
patent: 4831332 (1989-05-01), Rudisill et al.
patent: 4879546 (1989-11-01), Dunham et al.
patent: 4910463 (1990-03-01), Williams, II et al.
patent: 5184500 (1993-02-01), Krcma et al.
patent: 5214412 (1993-05-01), Gavlak et al.

Affiliated with

Also associated with

Rating

Refrigerant gas leak detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1267974