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Four way valve
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Patent number 4,340,202
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Issue date Jul 20, 1982
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Emerson Electric Co.
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David P. Hargraves
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Four way valve
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Patent number 4,202,373
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Issue date May 13, 1980
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Emerson Electric Co.
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David P. Hargraves
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Double ported expansion valve
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Patent number 4,079,886
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Issue date Mar 21, 1978
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Emerson Electric Co.
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Jude A. Pauli
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Refrigerant liquid indicator
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Patent number 4,064,826
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Issue date Dec 27, 1977
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Emerson Electric Co.
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Jude A. Pauli
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...