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US 7,975,622 B2Granted
System and method for reinforcing railway tank cars
AssigneeTrinity Industries, Inc.
InventorsThomas H. Dalrymple, Aubra D. McKisic
Life of this patent
Estimating the term…
Abstract
An apparatus for reinforcing a railway tank car includes a tank shell. A plurality of attachment pads are welded to the tank shell to form a tank assembly. The tank assembly is subjected to a post-weld heat treatment. A plurality of shield plates may each be welded directly to at least one of the plurality of attachment pads. The shield plates are not subjected to the post-weld heat treatment.
Claims21
An apparatus for reinforcing a tank of a railway tank car, comprising:
- a tank shell;
- a plurality of circumferential attachment pads, each of the circumferential attachment pads welded to and wrapped around a respective lateral circumference of the tank shell to form a tank assembly, the tank assembly being subjected to a post-weld heat treatment;
- and
- a plurality of shield plates, each of the plurality of shield plates welded directly to at least one of the plurality of circumferential attachment pads, the shield plate not being subjected to the post-weld heat treatment.
1 more element
A method for reinforcing a railway tank car, comprising:
- forming a tank shell;
- welding each of a plurality of circumferential attachment pads to at least a portion of a respective lateral circumference of the tank shell to form a tank assembly, each of the plurality of circumferential attachment pads wrapping around each respective lateral circumference of the tank shell;
- subjecting the tank assembly to a post-weld heat treatment;
- welding each of a plurality of shield plates directly to at least one of the plurality of circumferential attachment pads after the post-weld heat treatment.
1 more element
Dependencies are inferred from the claim text.