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Patent applications and USPTO patent grants for Willitts; Benjamin R..The latest application filed is for "highly energy efficient heat reclamation means for food display case refrigeration systems".
Patent | Date |
---|---|
Highly energy efficient heat reclamation means for food display case refrigeration systems Grant 4,535,603 - Willitts , et al. August 20, 1 | 1985-08-20 |
Pressure control means for refrigeration systems of the energy conservation type Grant 4,430,866 - Willitts February 14, 1 | 1984-02-14 |
Energy conservation system having improved means for controlling receiver pressure Grant 4,231,229 - Willitts November 4, 1 | 1980-11-04 |
Refrigeration system utilizing saturated gaseous refrigerant for defrost purposes Grant 4,167,102 - Willitts September 11, 1 | 1979-09-11 |
Refrigeration and hot gas defrost system Grant 4,012,921 - Willitts , et al. March 22, 1 | 1977-03-22 |
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