Independent dog operating system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 2002
Grant Date -
Jan 24, 2002
app pub date -
Apr 11, 2000
filing date -
Apr 11, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dog carriage for a railway car indexing system for positioning a railway car or a trip of coupled railway cars having railway wheels mounted in and carrying bogey wheel truck frames by engaging and pushing against the bogey wheel truck frames using dogs includes a dog carriage frame moveable along a railroad track, a pair of spaced opposed dogs pivotally attached to the dog carriage frame for pivoting between a lowered position and a raised position to engage a bogey wheel truck frame in the raised position by movement of the dog carriage frame. A bogey wheel truck frame sensing device is carried on the dog carriage and a dog operating system is provided for controlling the position of each of the dogs individually between the lowered and the raised position.
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