Inventor
FRANK EARL E
US18 patents
Patents
18 patentsUS4624428ANov 25, 1986
Spring rail frog
ABEX CORP35 citations92
US4637578AJan 20, 1987
Railroad frog having movable wing rails
ABEX CORP24 citations81
US4346785AAug 31, 1982
Rail lubricator
ABEX CORP22 citations81
US4245719AJan 20, 1981
Railroad lubricators
ABEX CORP22 citations81
US4034677AJul 12, 1977
Railroad classification yards
ABEX CORP23 citations81
US4005839AFeb 1, 1977
Railroad turnouts
ABEX CORP21 citations81
US4428552AJan 31, 1984
Railroad switch machine
ABEX CORP24 citations80
US4177837ADec 11, 1979
Accumulator
ABEX CORP28 citations80
US4027595AJun 7, 1977
Hydraulic apparatus
ABEX CORP16 citations80
US4362282ADec 7, 1982
Railroad frogs
ABEX CORP10 citations73
US4251042AFeb 17, 1981
Railway double tongue switch
ABEX CORP8 citations73
US4098374AJul 4, 1978
Railroad classification yards
ABEX CORP9 citations73
US4113621ASep 12, 1978
Hydraulic apparatus
ABEX CORP12 citations71
US4081162AMar 28, 1978
Railroad frogs
ABEX CORP5 citations62
US3964679AJun 22, 1976
Railroad guard rails
ABEX CORP3 citations62
US4409902AOct 18, 1983
Spike drivers
ABEX CORP1 citations51
US4346751AAug 31, 1982
Foundry molds
ABEX CORP0 citations41
US4114844ASep 19, 1978
Tongue switch for rail installations
ABEX CORP0 citations41