Inventor
DOUGLAS ELLWOOD S
US9 patents
⚠️ This page may combine multiple inventors who share the name “DOUGLAS ELLWOOD S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PACKAGE MACHINERY CO
6 patentsUS4529050AJul 16, 1985
Combination weighing machine with adaptive signal correction
PACKAGE MACHINERY CO58 citations95
US5270495ADec 14, 1993
Combination weighing machine with feed control
PACKAGE MACHINERY CO51 citations92
US4534428AAug 13, 1985
Vibratory feeder control for a weighing system
PACKAGE MACHINERY CO45 citations92
US4466500AAug 21, 1984
Combination weighing system
PACKAGE MACHINERY CO44 citations91
US4813503AMar 21, 1989
Method and apparatus for preparing a blended product charge
PACKAGE MACHINERY CO23 citations81
US4535856AAug 20, 1985
Combination weighing machine having short search
PACKAGE MACHINERY CO4 citations62