US 11,993,295 B2
Modular railcar underframe and top container
Rajesh K. Gupta, Euless, TX (US); Konstantin I. Khenokh, Plano, TX (US); Suman Gachhadar, Frisco, TX (US); Percy Hoshang Elavia, Plano, TX (US); and Matthew Gabriel Westlake, Dallas, TX (US)
Assigned to TRINITY RAIL GROUP, LLC, Dallas, TX (US)
Appl. No. 16/965,837
Filed by TRINITY RAIL GROUP, LLC, Dallas, TX (US)
PCT Filed Jan. 29, 2019, PCT No. PCT/US2019/015629
§ 371(c)(1), (2) Date Jul. 29, 2020,
PCT Pub. No. WO2019/152390, PCT Pub. Date Aug. 8, 2019.
Claims priority of provisional application 62/623,727, filed on Jan. 30, 2018.
Prior Publication US 2021/0053592 A1, Feb. 25, 2021
Int. Cl. B61D 3/20 (2006.01); B61D 3/08 (2006.01); B61F 1/08 (2006.01)
CPC B61D 3/20 (2013.01) [B61D 3/08 (2013.01); B61F 1/08 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A modular railcar comprising:
a pair of trucks disposed near each end of the modular railcar;
an underframe coupled to the pair of trucks and supported by the pair of trucks; and
the underframe comprising a plurality of coupling apparatus, the plurality of coupling apparatus configured to couple a modular top container to the underframe;
wherein each coupling apparatus of the plurality of coupling apparatus comprises a protruding portion configured to couple with a recessed portion of a modular top container and the protruding portion of each coupling apparatus is smaller than a corresponding recessed portion of the modular top container facilitating movement of the modular top container with respect to the underframe.