Inventor
GROVER DONALD D
17 patents
⚠️ This page may combine multiple inventors who share the name “GROVER DONALD D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SNAP ON TOOLS CORP
14 patentsUS4643030AFeb 17, 1987
Torque measuring apparatus
SNAP ON TOOLS CORP58 citations95
US4934222AJun 19, 1990
Ergonomic tool
SNAP ON TOOLS CORP50 citations90
US5199146AApr 6, 1993
Tensioning and crimping tool
SNAP ON TOOLS CORP35 citations85
USD274496SJul 3, 1984
Hammer
SNAP ON TOOLS CORP24 citations81
US4493208AJan 15, 1985
Dual engine probe
SNAP ON TOOLS CORP11 citations73
US4469952ASep 4, 1984
Adapter for diesel-engine-timing meter
SNAP ON TOOLS CORP10 citations73
US4441021AApr 3, 1984
Luminosity probe for diesel engine timing apparatus
SNAP ON TOOLS CORP14 citations72
US4402222ASep 6, 1983
Bolt load determining apparatus
SNAP ON TOOLS CORP13 citations72
US4373384AFeb 15, 1983
Diesel engine timing apparatus
SNAP ON TOOLS CORP13 citations72
US4262527AApr 21, 1981
Self-adjusting engine timing pickup probe
SNAP ON TOOLS CORP10 citations71
US4484469ANov 27, 1984
Luminosity probe with positively retained light pipe
SNAP ON TOOLS CORP16 citations67
US4577496AMar 25, 1986
Transducer and holder therefor for ultrasonic acoustic tachometer
SNAP ON TOOLS CORP6 citations62
US4506546AMar 26, 1985
Adapter for converting luminosity signals into inductive signals
SNAP ON TOOLS CORP5 citations62
US4302724ANov 24, 1981
Pickup probe for engine timing
SNAP ON TOOLS CORP5 citations54