Inventor
MADISON HARRY
US18 patents
⚠️ This page may combine multiple inventors who share the name “MADISON HARRY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HARSCO CORP
11 patentsUS5186109AFeb 16, 1993
Side shift railway guide wheel apparatus for rail/highway conversion with V-shaped automatic centering surfaces for centering vehicle relative to the rails
HARSCO CORP35 citations92
US4951573AAug 28, 1990
Tie remover and inserter
HARSCO CORP28 citations92
US5542355AAug 6, 1996
Tie plate track fastener feeder
HARSCO CORP24 citations91
US5048424ASep 17, 1991
Tie replacer and method
HARSCO CORP29 citations90
US5359815ANov 1, 1994
Profile grinder
HARSCO CORP22 citations89
US5305692AApr 26, 1994
Truck mounted tie exchanger with self-aligning tie clamp
HARSCO CORP27 citations89
US5197389AMar 30, 1993
Tie replacer
HARSCO CORP24 citations89
US5660115AAug 26, 1997
Vertically actuated rail guide wheels
HARSCO CORP24 citations86
US5619931AApr 15, 1997
Road and rail using rail wheel drive and apparatus
HARSCO CORP19 citations84
US5154124AOct 13, 1992
Rail engagement apparatus which uses vehicle supension
HARSCO CORP16 citations73
US5586507ADec 24, 1996
Rail guide wheel apparatus with double overcenter linkage
HARSCO CORP14 citations70
HARSCO TECHNOLOGIES CORP
6 patentsUS6662729B1Dec 16, 2003
Rail anchor spreader
HARSCO TECHNOLOGIES CORP21 citations92
US6089162AJul 18, 2000
Rail vehicle for tie loading and unloading
HARSCO TECHNOLOGIES CORP31 citations92
US5868078AFeb 9, 1999
Road and rail vehicle using rail wheel drive and apparatus
HARSCO TECHNOLOGIES CORP41 citations92
US6595140B1Jul 22, 2003
Railway tie plate insertion apparatus and method
HARSCO TECHNOLOGIES CORP29 citations86
US6536354B1Mar 25, 2003
Railway tie bed scarifier
HARSCO TECHNOLOGIES CORP7 citations71
US6575099B1Jun 10, 2003
Railway tie insertion guide
HARSCO TECHNOLOGIES CORP1 citations51