ABB DAIMLER-BENZ TRANSPORTATION (NORTH AMERICA) INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5475818 Communications controller central processing unit boardExpiredMay 26, 94Dec 12, 95[G06F]
5404465 Method and apparatus for monitoring and switching over to a back-up bus in a redundant trainline monitor systemExpiredMar 10, 93Apr 04, 95[G06F]
5388789 System for safely and automatically controlling the distance between vehiclesExpiredDec 04, 92Feb 14, 95[B61L]
5377356 Propulsion control system central processing unit boardExpiredApr 18, 91Dec 27, 94[G06F]
5293632 Method and apparatus for load shedding using a trainline monitor systemExpiredMar 18, 92Mar 08, 94[G06F]
5289176 Multi-master resolution of a serial busExpiredMar 19, 92Feb 22, 94[G05B]
4953472 Rail vehicle, particularly monorailExpiredAug 04, 88Sep 04, 90[B61G]
4819168 Train control having improved wheel wear adjustment for more accurate train operationExpiredJan 19, 88Apr 04, 89[G06F]
4651070 Transit vehicle start-up propulsion motor control apparatus and methodExpiredAug 01, 85Mar 17, 87[H02M]
4625279 Vehicle speed control apparatus and methodExpiredMay 11, 84Nov 25, 86[B61L, H04Q]
4581692 Direct current voltage converter apparatusExpiredOct 04, 84Apr 08, 86[H02M]
4566067 Speed control apparatus and method for rapid transit vehiclesExpiredApr 29, 83Jan 21, 86[B61L, G06F]
4556941 Transit vehicle speed maintaining control apparatus and methodExpiredApr 11, 83Dec 03, 85[B61L]
4516059 Motor control chopper apparatus phase angle limitingExpiredMay 19, 81May 07, 85[H02K]
4498198 Binary signal decoding apparatus and methodExpiredSep 17, 82Feb 05, 85[H03D]
4380724 Shunt field control apparatus and methodExpiredNov 24, 80Apr 19, 83[H02P]
4370603 Shunt field control apparatus and methodExpiredOct 23, 80Jan 25, 83[H02P]
4361300 Vehicle train routing apparatus and methodExpiredOct 08, 80Nov 30, 82[B61L]
4361301 Vehicle train tracking apparatus and methodExpiredOct 08, 80Nov 30, 82[B61L]
4352049 Brake control apparatus and methodExpiredNov 26, 79Sep 28, 82[H02P]

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