Weight-monitored air-conditioner charging station

Details Weight-monitored air-conditioner charging station Weight-monitored air-conditioner charging station

1983-05-23

1985-04-30

Tanner, Harry

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

62292, 62126, F25B 4500

Patent

active

045135789

ABSTRACT:
A mobile air-conditioner charging station having a reluctance-type weighing scale on which are mounted reservoirs of both lubricant oil and refrigerant. A computer module reads the weight loss of the combined reservoirs as, first, the oil is charged into the air-conditioner and then, sequentially and automatically, the refrigerant is charged into the air-conditioner. Each charging cycle is completed when the computer module senses, by a plurality of discrete readings of the scale at timed intervals, that a pre-selected magnitude of weight loss has occurred and has been maintained.

REFERENCES:
patent: 2325844 (1947-08-01), Spaulding
patent: 2499170 (1950-02-01), Shoemaker
patent: 2746258 (1956-05-01), Hagans
patent: 3076319 (1963-02-01), White
patent: 3695055 (1972-10-01), Bruce
patent: 3785163 (1974-01-01), Wagner
patent: 3813893 (1974-06-01), Gemender et al.
patent: 3873289 (1975-03-01), White
patent: 4245480 (1981-01-01), Saunders
patent: 4261178 (1981-04-01), Cain
patent: 4285206 (1981-08-01), Koser
patent: 4364236 (1982-12-01), Lower et al.

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