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Patent Searching and Data


Title:
PRIORITY CAR SORTING IN RAILROAD CLASSIFICATION YARDS USING A CONTINUOUS MULTI-STAGE METHOD
Document Type and Number:
WIPO Patent Application WO2002042141
Kind Code:
A3
Abstract:
A new method of sorting railroad cars in yards is presented, as shown in Figure 10, whereby outbound trains are built in proper standing order for departure directly on classification tracks (55), using a continuously sustainable multi-stage sorting process. During this process, cars are easily separated based on priority or according to delivery time commitments, so connections of cars needing to go on a specific train can be protected. During second stage sorting operations, railcars may be inspected or repaired while they await outbound connections on classification tracks, effectively utilizing otherwise idle time and resulting in considerable savings in time required for railcars to pass through the yard. The need for a separate departure yard, along with the bottleneck "flat" switching operation at the departure end of the classification yard, is also eliminated. This sorting process may be implemented in a traditional rail yard setting, but it will yield even more benefit if accomplished in one of the specialized facility designs shown in the drawing figures.

Inventors:
KRAFT EDWIN R (US)
Application Number:
PCT/US2001/043075
Publication Date:
August 28, 2003
Filing Date:
November 14, 2001
Export Citation:
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Assignee:
KRAFT EDWIN R (US)
International Classes:
B61B1/00; B61L17/00; (IPC1-7): B61B1/00
Foreign References:
US5986579A1999-11-16
US5986577A1999-11-16
US5777547A1998-07-07
US5758848A1998-06-02
US4883245A1989-11-28
US4689602A1987-08-25
US3889603A1975-06-17
US3727559A1973-04-17
US2976817A1961-03-28
US2948234A1960-08-09
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