Gondola railroad car

US12539893B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12539893-B2
Application numberUS-202217810410-A
CountryUS
Kind codeB2
Filing dateJul 1, 2022
Priority dateJul 1, 2022
Publication dateFeb 3, 2026
Grant dateFeb 3, 2026

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A gondola railroad car partially formed using members of high strength steel, that is lighter than conventional gondola railroad cars, that can carry more weight than conventional gondola railroad cars, that is less prone to damage than conventional gondola railroad cars, and that has a longer lifespan than convention gondola railroad cars. In various such embodiments, the floor and the side walls of the gondola railroad car are partially formed from ultra-high strength steel members.

First claim

Opening claim text (preview).

The invention claimed is: 1. A railroad car comprising: a frame; a containment structure including a floor, a first side wall, a second side wall, a first floor-side-wall connector connecting the floor and the first side wall, and a second floor-side-wall connector connecting the floor to the second side wall; and a plurality of first support brackets connected to the frame and supporting the containment structure, each of the first support brackets including: a first floor connection member rigidly connected to the floor, a first side wall connection member rigidly connected to the first side wall, wherein neither of the first floor connection member nor the first side wall connection member are rigidly connected to the first floor-side-wall connector, and a non-rigid corner support connecting the first floor connection member to the first side wall connection member. 2. The railroad car of claim 1 , wherein the first floor-side-wall connector is at least partially defined by at least one of the floor and the first side wall, and wherein the second floor-side-wall connector is at least partially defined by at least one of the floor and the second side wall. 3. The railroad car of claim 1 , wherein the floor includes at least one ultra-high strength steel member, wherein the first side wall includes at least one ultra-high strength steel member, and wherein the second side wall includes at least one ultra-high strength steel member. 4. The railroad car of claim 3 , wherein the first floor-side-wall connector is at least partially defined by at least one of the floor and the first side wall, and wherein the second floor-side-wall connector is at least partially defined by at least one of the floor and the second side wall. 5. The railroad car of claim 1 , wherein the floor includes at least one ultra-high strength steel member, wherein the first side wall includes at least one ultra-high strength steel member, wherein the second side wall includes at least one ultra-high strength steel member, wherein the first floor-side-wall connector includes at least one ultra-high strength steel member, and wherein the second floor-side-wall connector includes at least one ultra-high strength steel member. 6. The railroad car of claim 1 , wherein the floor includes only one ultra-high strength steel member, wherein the first side wall includes only one ultra-high strength steel member, wherein the second side wall includes only one ultra-high strength steel member, wherein the first floor-side-wall connector includes only one ultra-high strength steel member, and wherein the second floor-side-wall connector includes only one ultra-high strength steel member. 7. The railroad car of claim 1 , wherein the floor is formed from a plurality of ultra-high strength steel members welded together, wherein the first side wall is formed from a plurality of ultra-high strength steel members welded together, and wherein the second side wall is formed from a plurality of ultra-high strength steel members welded together. 8. The railroad car of claim 1 , wherein the floor is formed from a plurality of ultra-high strength steel members welded together, wherein the first side wall is formed from a plurality of ultra-high strength steel members welded together, wherein the second side wall is formed from a plurality of ultra-high strength steel members welded together, wherein the first floor-side-wall connector is formed from a plurality of ultra-high strength steel members welded together, and wherein the second floor-side-wall connector is formed from a plurality of ultra-high strength steel members welded together. 9. The railroad car of claim 1 , wherein the floor, the first side wall, and the second side wall are formed by a plurality of connected ultra-high strength steel U-shaped members. 10. The railroad car of claim 1 , wherein for each of the first support brackets, the first floor connection member is welded to the floor and the first side wall connection member is welded to the first side wall. 11. The railroad car of claim 1 , which includes: a plurality of second support brackets connected to the frame and supporting the containment structure, each of the second support brackets including: a second floor connection member rigidly connected to the floor, a second side wall connection member rigidly connected to the second side wall, wherein neither of the second floor connection member nor the second side wall connection member are rigidly connected to the second floor-side-wall connector, and a non-rigid corner support connecting the first floor connection member to the first side wall connection member. 12. The railroad car of claim 11 , wherein for each of the second support brackets, the second floor connection member is welded to the floor and the second side wall connection member is welded to the second side wall. 13. The railroad car of claim 1 , wherein: the floor is welded to the first floor-side-wall connected along a longitudinally extending first weld connection area, the floor is welded to the second floor-side-wall connected along a longitudinally extending second weld connection area, the first floor-side-wall is welded to the first side wall connected along a longitudinally extending third weld connection area, and the second floor-side-wall is welded to the second side wall connected along a longitudinally extending fourth weld connection area. 14. The railroad car of claim 1 , wherein: the floor includes elongated flat ultra-high strength steel first and second members welded together along a longitudinally extending weld connection area, the first side wall includes an elongated ultra-high strength steel flat member, the first floor-side-wall connector includes an elongated ultra-high strength steel bent member, the second side wall includes an elongated ultra-high strength steel flat member, and the second floor-side-wall connector includes an elongated ultra-high strength steel bent member. 15. The railroad car of claim 1 , wherein the floor, the first side wall, the second side wall, the first floor-side-wall connector, and the second floor-side-wall connector define two opposing end members and a central member of the containment structure, and wherein the end members have a greater thickness than the central member. 16. The railroad car of claim 1 , wherein the floor, the first side wall, the second side wall, the first floor-side-wall connector, and the second floor-side-wall connector are connected together by only longitudinal welds. 17. A railroad car comprising: a frame; a containment structure including a floor, a first side wall, a second side wall, a first floor-side-wall connector connecting the floor and the first side wall, and a second floor-side-wall connector connecting the floor to the second side wall, wherein the floor, the first side wall, the second side wall, the first floor-side-wall connector, and the second floor-side-wall connector are connected together by only longitudinal welds, wherein the first floor-side-wall connector includes: a bottom section connected to the floor by one of the longitudinal welds, the bottom section extending at a first angle relative to the floor, a top section connected to the first side wall by another one of the longitudinal welds, the top section extending at a second angle relative to the floor, and an intermediate section connecting the bottom section and the top section of the first floor-side-wall connector, the intermediate section extending at a third angle relative to the floor, the i

Assignees

Inventors

Classifications

  • Floors · CPC title

  • Sides · CPC title

  • End walls · CPC title

  • Wagons or vans (tank wagons B61D5/00; hopper wagons B61D7/00; tipping wagons B61D9/00; mine cars B61D11/00; vehicles specially adapted for animal transportation B60P3/04; {container traffic B65G}) · CPC title

  • B61D17/043Primary

    connections between superstructure sub-units (for road vehicles B62D27/00) · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12539893B2 cover?
A gondola railroad car partially formed using members of high strength steel, that is lighter than conventional gondola railroad cars, that can carry more weight than conventional gondola railroad cars, that is less prone to damage than conventional gondola railroad cars, and that has a longer lifespan than convention gondola railroad cars. In various such embodiments, the floor and the side wa…
Who is the assignee on this patent?
Gunderson Llc
What technology area does this patent fall under?
Primary CPC classification B61D17/043. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 03 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).