Inventor
DAUGIRDA PAUL G
US7 patents
Patents
7 patentsUS4813383AMar 21, 1989
Water heater tank flushing device
RHEEM MFG CO23 citations80
US3978309AAug 31, 1976
Sacrificial, shaped anode and method of constructing same
RHEEM MFG CO19 citations76
US4555837ADec 3, 1985
Method of making an improved water heater tank assembly
RHEEM MFG CO7 citations72
US4452226AJun 5, 1984
Water heater tank assembly
RHEEM MFG CO13 citations72
US4488342ADec 18, 1984
Vessel construction employing multiple internal heat exchange tubes
RHEEM MFG CO7 citations71
US4415020ANov 15, 1983
Vessel construction employing multiple internal heat exchange tubes
RHEEM MFG CO7 citations71
US4676199AJun 30, 1987
High efficiency water heater construction
RHEEM MFG CO19 citations69