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| Number | Title | Issue Date |
| 5402942 | Railway tie collar system A tie collar having an upper wall for supporting a rail, an upper receptacle for receiving a cross tie, and a lower enlarged ground engaging portion is provided with an improved double wall feature for connecting the ends of the upper wall to the lower po... | 04/04/1995 |
| 4121766 | Railway tie collar A track supporting railway tie collar includes an upper receptacle for slidably and loosely receiving an end portion of a cross tie and a lower enlarged portion supported in the ballast beneath the track structure. The collar serves to transfer the weight... | 10/24/1978 |
