Railroad crosstie for level crossing between a road and a railroad
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Description
FIG. 1 is a perspective view of a railroad crosstie (sleeper) of our new design;
FIG. 2 is a side view of the crosstie of FIG. 1;
FIG. 3 is a top view of the crosstie of FIG. 1;
FIG. 4 is an end elevation of the crosstie of FIG. 1.
Referenced Cited
U.S. Patent Documents
D215073 | August 1969 | McQueen |
4009827 | March 1, 1977 | Tafel |
Patent History
Patent number: D253230
Type: Grant
Filed: Apr 6, 1978
Date of Patent: Oct 23, 1979
Assignee: A-Betong AB (Vaxjo)
Inventors: Sten Limmergard (Alvesta), Stig H. G. Thim (Vaxjo)
Primary Examiner: A. Hugo Word
Attorney: Robert Osann
Application Number: 5/894,048
Type: Grant
Filed: Apr 6, 1978
Date of Patent: Oct 23, 1979
Assignee: A-Betong AB (Vaxjo)
Inventors: Sten Limmergard (Alvesta), Stig H. G. Thim (Vaxjo)
Primary Examiner: A. Hugo Word
Attorney: Robert Osann
Application Number: 5/894,048
Classifications
Current U.S. Class:
Railway (includes Tie) (D12/49);
D25/74;
D25/92
International Classification: D2501;
International Classification: D2501;