Refrigeration – With indicator or tester – Operatively correlated with automatic control
Patent
1990-10-15
1991-12-31
Tanner, Harry B.
Refrigeration
With indicator or tester
Operatively correlated with automatic control
62129, 62503, F25B 4900
Patent
active
050760661
ABSTRACT:
The present invention is directed to a system for avoiding possible compressor damage occasioned by major flood back of the suction accumulator in a refrigeration system. In one embodiment of the invention, a float member slides upwardly and downwardly upon the stand pipe of the accumulator in response to the level of refrigerant therein, and when the refrigerant rises to a critical level, the float member is effective to block the outlet openings in the upper end of the suction accumulator, preventing flow of refrigerant to the compressor sufficient in volume to cause damage thereto. In another embodiment of the invention, a float member having magnet means associated therewith moves vertically in opposite directions upon a tubular support connected to the suction accumulator structure. Magnetic switch means associated with the tubular support member is actuated by the float member magnet means when in proximity thereto, effecting by various means termination of refrigerant flow to the compressor sufficient in volume to cause damage thereto.
REFERENCES:
patent: 3563053 (1971-02-01), Bottum
patent: 3837177 (1974-09-01), Rockwell et al.
patent: 3939667 (1976-02-01), Halverson
patent: 4308725 (1982-01-01), Chiyoda
patent: 4757696 (1988-07-01), Gannaway
patent: 4982576 (1991-01-01), Proctor et al.
Claeboe Bertram F.
Tanner Harry B.
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