Inventor
WALTER ARTHUR
13 patents
⚠️ This page may combine multiple inventors who share the name “WALTER ARTHUR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SICK OPTIK ELEKTRONIK ERWIN
10 patentsUS4365188ADec 21, 1982
Circuit arrangement for monitoring and controlling closing and opening movements
SICK OPTIK ELEKTRONIK ERWIN21 citations81
US4354106AOct 12, 1982
Light barrier apparatus
SICK OPTIK ELEKTRONIK ERWIN23 citations81
US4196961AApr 8, 1980
Optical apparatus for correcting the spherical aberration of a spherical concave mirror
SICK OPTIK ELEKTRONIK ERWIN25 citations80
US4250498AFeb 10, 1981
Light barrier receiver
SICK OPTIK ELEKTRONIK ERWIN19 citations73
US4156883AMay 29, 1979
Light barrier arrangement
SICK OPTIK ELEKTRONIK ERWIN8 citations72
US4012635AMar 15, 1977
Light barrier system
SICK OPTIK ELEKTRONIK ERWIN13 citations71
US4571582AFeb 18, 1986
Fault pre-warning device for use in carpet manufacturing machines
SICK OPTIK ELEKTRONIK ERWIN5 citations62
US4568827AFeb 4, 1986
Light barrier apparatus
SICK OPTIK ELEKTRONIK ERWIN6 citations62
US3973107AAug 3, 1976
Reading device for optically detectable digital codes
SICK OPTIK ELEKTRONIK ERWIN3 citations62
US4131804ADec 26, 1978
Electrooptical scanning device
SICK OPTIK ELEKTRONIK ERWIN3 citations61