Medical School University of Arkansas College of Medicine at Little Rock Graduated: 1992
Procedures:
Cardiac Stress Test Continuous EKG Destruction of Benign/Premalignant Skin Lesions Electrocardiogram (EKG or ECG) Pulmonary Function Tests Vaccine Administration
Dr. Clay graduated from the University of Arkansas College of Medicine at Little Rock in 1992. He works in Fayetteville, AR and specializes in Internal Medicine. Dr. Clay is affiliated with Northwest Medical Center and Washington Regional Medical Center.
Us Patents
Apparatus And Method For Monitoring Refrigeration System
David W. Beaverson - Bowling Green OH David A. Clay - Perrysburg OH
Assignee:
Atron, Inc. - Toledo OH
International Classification:
F25B 4902
US Classification:
62129
Abstract:
A flash gas filter system detects a low level of refrigerant flowing in a conduit of a refrigeration system by measuring a temperature drop across a sub-cooler connected to the conduit. The sub-cooler has a liquid process circuit for passing the refrigerant and a refrigerating circuit connected by a manual expansion valve to an outlet of the liquid process circuit for producing a predetermined temperature drop across the sub-cooler when the refrigeration system is fully charged. The temperature drop in the refrigerant is reduced by the presence of bubbles caused by a low refrigerant level. The reduced temperature drop is detected and an alarm signal is generated by a computerized filter system control. The control also can monitor liquid line temperature for protection against malfunctioning condensers generate maintenance information and warn of potential malfunction conditions.