Refrigeration – With indicator or tester – Operatively correlated with automatic control
Patent
1989-05-08
1991-09-10
Wayner, William E.
Refrigeration
With indicator or tester
Operatively correlated with automatic control
62149, 62292, 177127, F25B 4900
Patent
active
050463225
ABSTRACT:
An electronic scale assembly for transferring refrigerant charge between a tank and refrigeration equipment under service comprises a generally rectangular enclosure that includes a handle positioned along one side edge of the enclosure for manually transporting the scale, and a cover for selectively opening and closing the enclosure. A scale includes a platform mounted within the enclosure at a position to support a refrigerant tank when the cover is open, and a strain gage sensor for providing an electrical signal as function of weight supported by the platform. A solenoid-operated refrigerant transfer valve is mounted within the enclosure for connection between a tank mounted on the scale platform and refrigeration equipment under service for selectively transferring refrigerant between the tank and the equipment through the valve. An electronic controller is responsive to the electrical scale signal for indicating weight of refrigerant transferred through the valve. The electronic controller includes facility for operator programming of a selected charge transfer quantity, opening the solenoid valve upon initiation of a charging operation, and monitoring the scale signal for automatically closing the transfer valve responsive to a change in the scale signal corresponding to the programmed transfer refrigerant quantity.
REFERENCES:
patent: 783329 (1905-02-01), Sweet
patent: 997091 (1911-07-01), Reichmann
patent: 2386765 (1945-10-01), Adams et al.
patent: 2884223 (1959-04-01), Cooksley
patent: 3976110 (1976-08-01), White
patent: 4624112 (1986-11-01), Proctor
patent: 4688388 (1987-08-01), Lower et al.
patent: 4938031 (1990-07-01), Manz et al.
patent: 4939905 (1990-07-01), Manz
Control Power Systems, Inc. (catalog page).
TIF Instruments, Inc. (catalog page).
Bulla Don A.
Dunham Byron J.
Murray Gary P.
Kent-Moore Corporation
Wayner William E.
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