Inventor · disambiguated record
Thomas H. Engle
Also filed as: ENGLE THOMAS · ENGLE THOMAS H
66 granted patents·1,476 citations·filing 1974–2005
99Inventor score
Files withGEN SIGNAL CORP31KNORR BRAKE HOLDING CORP9WESTINGHOUSE AIR BRAKE CO9WESTINGHOUSE AIR BRAKE TECH CORP7NEW YORK AIR BRAKE CORP4
Top patents by PatentIndex Score
66 records- 0199US4074700AQuick-acting valve assemblyGEN SIGNAL CORP·Filed 1975·Granted Feb 21, 1978·115 cites·2 claims
- 0297US4766980ARail car brake apparatusGEN SIGNAL CORP·Filed 1987·Granted Aug 30, 1988·69 cites·8 claims
- 0393US5494342AElectropneumatic brake control systemNEW YORK AIR BRAKE CORP·Filed 1994·Granted Feb 27, 1996·41 cites·17 claims
- 0493US4652057AControl system for integral trainsGEN SIGNAL CORP·Filed 1985·Granted Mar 24, 1987·77 cites·28 claims
- 0593US4080005AEmpty-load fluid pressure brake system including proportioning valveGEN SIGNAL CORP·Filed 1975·Granted Mar 21, 1978·28 cites·5 claims
- 0692US4653812ATruck mounted pneumatic brake control systemGEN SIGNAL CORP·Filed 1985·Granted Mar 31, 1987·41 cites·36 claims
- 0791US6718886B2Ramp carWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2002·Granted Apr 13, 2004·45 cites·6 claims
- 0891US4018140AHydraulic disc brake actuatorGEN SIGNAL CORP·Filed 1974·Granted Apr 19, 1977·51 cites·3 claims
- 0990US4973206AMethod and apparatus for loading and unloading semitrailers and off railroad flat carsGEN SIGNAL CORP·Filed 1988·Granted Nov 27, 1990·55 cites·10 claims
- 1089US5564795AElectropneumatic brake control system parking brakeNEW YORK AIR BRAKE CORP·Filed 1995·Granted Oct 15, 1996·39 cites·6 claims
- 1187US7140477B2Automatic parking brake for a rail vehicleWABTEC HOLDING CORP·Filed 2004·Granted Nov 28, 2006·31 cites·6 claims
- 1286US7404473B2Automatic parking brake for a rail vehicleWABTEC HOLDING CORP·Filed 2005·Granted Jul 29, 2008·12 cites·14 claims
- 1385US4978178AAutomatic self-resetting parking brakeGEN SIGNAL CORP·Filed 1989·Granted Dec 18, 1990·44 cites·14 claims
- 1484US6491352B2Spring applied parking brake for rail carsWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2001·Granted Dec 10, 2002·30 cites·17 claims
- 1584US4718800AStanchionGEN SIGNAL CORP·Filed 1986·Granted Jan 12, 1988·42 cites·15 claims
- 1683USRE36036EElectropneumatic brake control systemNEW YORK AIR BRAKE CORP·Filed 1996·Granted Jan 12, 1999·29 cites·1 claims
- 1783US4702291APropulsion system for integral trainsGEN SIGNAL CORP·Filed 1985·Granted Oct 27, 1987·40 cites·11 claims
- 1882US6971723B2Graduated release/proportioning valveWABTEC HOLDING CORP·Filed 2005·Granted Dec 6, 2005·7 cites·10 claims
- 1982US5246081AMethod and apparatus for semitrailer transferKNORR BRAKE HOLDING CORP·Filed 1992·Granted Sep 21, 1993·46 cites·11 claims
- 2081US4776648ARelay valve assemblyGEN SIGNAL CORP·Filed 1987·Granted Oct 11, 1988·20 cites·17 claims
- 2180US6609769B2Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake systemWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2001·Granted Aug 26, 2003·15 cites·15 claims
- 2279US5083843AAutomatic graduated/direct release valveKNORR BRAKE HOLDING CORP·Filed 1990·Granted Jan 28, 1992·24 cites·23 claims
- 2378US4746171AParking brake system for railway vehiclesGEN SIGNAL CORP·Filed 1986·Granted May 24, 1988·34 cites·9 claims
- 2477US5112172ASliding pull up stanchion and methodKNORR BRAKE HOLDING CORP·Filed 1990·Granted May 12, 1992·24 cites·37 claims
- 2576US4718351AArticulated coupling for integral trainsGEN SIGNAL CORP·Filed 1986·Granted Jan 12, 1988·27 cites·28 claims
- 2676US4105257AElectro-pneumatic apparatus for graduated brake releaseGEN SIGNAL CORP·Filed 1977·Granted Aug 8, 1978·14 cites·10 claims
- 2774US5815823AMicroprocessor controlled railway car accounting and communication systemWESTINGHOUSE AIR BRAKE CO·Filed 1996·Granted Sep 29, 1998·36 cites·23 claims
- 2874US3954304AEmergency and handbrake control systemGEN SIGNAL CORP·Filed 1974·Granted May 4, 1976·24 cites·10 claims
- 2972US3937430AMethod and apparatus for controlling the speed of a vehicleGEN SIGNAL CORP·Filed 1975·Granted Feb 10, 1976·12 cites·5 claims
- 3070US7232282B2Apparatus for attaching semi-trailers to railcarsWABTEC HOLDING CORP·Filed 2005·Granted Jun 19, 2007·9 cites·21 claims
- 3170US4792269AContainer securing deviceGEN SIGNAL CORP·Filed 1987·Granted Dec 20, 1988·24 cites·4 claims
- 3270US3944286ABrake system including means for ensuring parking brake releaseGEN SIGNAL CORP·Filed 1974·Granted Mar 16, 1976·20 cites·7 claims
- 3369US4874065AParking brake system for railway vehiclesGEN SIGNAL CORP·Filed 1988·Granted Oct 17, 1989·23 cites·7 claims
- 3469US4775194APneumatically operated graduated release valve for rail vehiclesGEN SIGNAL CORP·Filed 1988·Granted Oct 4, 1988·14 cites·26 claims
- 3566US6217130B1Load proportional brake cylinder pressure limiting systemWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2000·Granted Apr 17, 2001·7 cites·11 claims
- 3665US4060152ARail car brake apparatusGEN SIGNAL CORP·Filed 1976·Granted Nov 29, 1977·18 cites·29 claims
- 3763US5980289AHose coupling with electrical contactsWESTINGHOUSE AIR BRAKE CO·Filed 1997·Granted Nov 9, 1999·28 cites·19 claims
- 3863US5222443ARailway ramp carKNORR BRAKE HOLDING CORP·Filed 1992·Granted Jun 29, 1993·21 cites·28 claims
- 3959US6736071B2Rail cars for intermodal trainWESTINGHOUSE AIR BRAKE TECH CORP·Filed 1999·Granted May 18, 2004·19 cites·63 claims
- 4059US5452982ASystem for positioning and supporting trailers on railcarsKNORR BRAKE HOLDING CORP·Filed 1994·Granted Sep 26, 1995·32 cites·12 claims
- 4159US4799741AParking brake system for railway vehiclesGEN SIGNAL CORP·Filed 1988·Granted Jan 24, 1989·16 cites·4 claims
- 4258US7306294B2Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake systemWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2003·Granted Dec 11, 2007·5 cites·3 claims
- 4358US5826685ACooling spoke arrangement for a brake discWESTINGHOUSE AIR BRAKE CO·Filed 1996·Granted Oct 27, 1998·14 cites·17 claims
- 4456US5518354AHook for actuating pull up hitchNEW YORK AIR BRAKE CORP·Filed 1995·Granted May 21, 1996·11 cites·8 claims
- 4555US5480042ALock and coupler for a railway ramp car having fluid and electrical couplingsKNORR BRAKE HOLDING CORP·Filed 1995·Granted Jan 2, 1996·14 cites·14 claims
- 4652US4673063AHydraulic shock absorber having reserve liquid supply chamber and indicatorGEN SIGNAL CORP·Filed 1986·Granted Jun 16, 1987·14 cites·4 claims
- 4750US5746293APneumatic pressure to hydraulic pressure intensifier mechanismWESTINGHOUSE AIR BRAKE CO·Filed 1996·Granted May 5, 1998·11 cites·20 claims
- 4849US3955370AHydraulic slack adjuster and brake circuits thereforGEN SIGNAL CORP·Filed 1974·Granted May 11, 1976·9 cites·4 claims
- 4948US6079795ALoad proportional brake cylinder pressure limiting systemWESTINGHOUSE AIR BRAKE TECH CORP·Filed 1998·Granted Jun 27, 2000·8 cites·22 claims
- 5048US5501566ASystem for positioning and supporting trailers on railcarsFiled 1995·Granted Mar 26, 1996·8 cites·9 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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