Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1976-09-13
1978-09-19
Queisser, Richard C.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
73714, 73753, 62129, G01K 722, G01L 900
Patent
active
041144481
ABSTRACT:
The disclosed apparatus is presented, for ease of comprehension, in terms of apparatus for servicing refrigeration systems, the disclosed apparatus using readily obtainable temperatures, rather than using the prior-art method of breaking into a refrigeration line for the purpose of measuring pressures.
An added feature is the ability of the apparatus to provide either absolute temperature read-outs for the temperature at the desired locations, or a differential temperature read-out for the temperatures between two desired locations. Moreover, the disclosed apparatus permits vacuum read-outs and pressure read-outs, again without the necessity of breaking into the refrigeration lines.
Since various refrigeration systems use different refrigerants, the disclosed apparatus also has the ability to convert the temperature read-outs to pressure read-outs that are associated with specific refrigerants.
In addition, the disclosed apparatus permits the automatic charging or bleeding of a refrigeration system that has an undercharge or an overcharge of refrigerant.
REFERENCES:
patent: 3082951 (1963-03-01), Kayan
patent: 3589168 (1971-06-01), Hankinson et al.
patent: 3707851 (1973-01-01), McAshan, Jr.
patent: 3713337 (1973-01-01), Stroman
patent: 3729949 (1973-05-01), Talbot
patent: 3911746 (1975-10-01), Spangler et al.
patent: 3939459 (1976-02-01), Hoopes
Beauchamp John P.
LoJacono, Sr. Francis X.
Queisser Richard C.
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