Refrigeration – With indicator or tester
Patent
1989-07-11
1990-09-25
Tanner, Harry B.
Refrigeration
With indicator or tester
62292, 62294, 222 5, 222 23, F25B 4500
Patent
active
049585010
ABSTRACT:
In a refrigerant charging apparatus for charging a refrigerant by using a refrigerant can (1), an upper can-opening part (21), a conduit (6) having two ways of inner passages for indication and charging and a lower can-opening part (6A), and a level indicator (4) communicated with the refrigerant can via both can-opening parts are provided in order to correctly indicate remaining quantity of the refrigerant in the can.
REFERENCES:
patent: 3052101 (1962-09-01), Bishop
patent: 3093979 (1963-06-01), Ehrens et al.
patent: 3916642 (1975-11-01), Mullins
Hashimoto Yasutaka
Higami Sadao
Nakano Genichi
Dengen Co., Ltd.
Fukuhou Teisan Co., Ltd.
Matsushita Electric - Industrial Co., Ltd.
Tanner Harry B.
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