USRE30388E - Railroad car with depressed floor - Google Patents
Railroad car with depressed floor Download PDFInfo
- Publication number
- USRE30388E USRE30388E US05/906,799 US90679978A USRE30388E US RE30388 E USRE30388 E US RE30388E US 90679978 A US90679978 A US 90679978A US RE30388 E USRE30388 E US RE30388E
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- US
- United States
- Prior art keywords
- floor
- sill
- car
- center sill
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/10—Floors
Definitions
- This invention relates to the construction of railroad freight cars, such as boxcars, where transverse bulkheads divide the interior into load confining compartments, and in particular to car floor constructions.
- the invention provides an improved nailable floor construction that includes a pair of longitudinal floor sections, one on each side of the center sill where the top of the floor sections, the top of a plate on the center sill, and the top of the side sill all lie in the same horizontal plane.
- the invention further provides a removable longitudinal floor section between the side sill and the floor section and in a longitudinal runner recess for alternately receiving a transverse bulkhead supporting rack type track cooperating with a ceiling bulkhead supporting track thereabove.
- FIG. 1 is a side elevation view of a railroad boxcar with the improved inventive floor design
- FIG. 2 is a sectional view taken along line 2--2 of FIG. 1;
- FIG. 3 is a partial enlarged sectional view of that shown in FIG. 2 but with the bulkhead rack track replacing the removable inverted channel;
- FIG. 4 is a sectional view taken along line 4--4 of FIG. 1;
- FIG. 5 is a plan view taken along line 5--5 of FIG. 1 of the floor construction with parts removed;
- FIG. 6 is a partial perspective view with parts missing of the bulkhead track portion taken along line 6--6 of FIG. 1;
- FIG. 7 is a partial enlarged side view of the bulkhead and floor track.
- a railroad freight car 1 of the boxcar type which has a roof 2 and ends 3 and 4, and sides 5 each with sliding door means 6 in a doorway 7 and side posts 8.
- Each car has an underframe 9 which includes the usual side sill reinforcements 10, side sills 11, center sill structure 12, and trucks 13.
- the side sill 11 is an L-shaped angle member from which extends downwardly the channel-shaped side sill reinforcement 10 which connects with a transversely extending horizontal crossmember 14 that extends inwardly to the center sill structure 12 which includes a fixed or stationary center sill 15 and a conventional sliding center sill 16.
- Another crossmember 17 extends from the outer side of the center sill structure to the other side (not shown) of the car which has the same type of side construction including a side sill, side sill reinforcement, etc.
- the crossmember 14 or 17 includes a vertical web 18, a bottom plate or flange 19, and a top plate or flange 20, and an upright outer end flange 21 between the upright channel member 22 of the fixed sill and the side sill reinforcement 10 which has a bottom reinforcement plate 23.
- the fixed sill has a top cover plate 24 joined to the member 22 and to the other stationary center sill upright channel member 25.
- the inner end portion 26 of the top crossmember plate 20 slopes up onto the top of the channel member 22.
- the fixed sill cover plate 24 is spaced above the stationary sill 15 and has flat top portion 27, outward and downward sloping side portions 28 and lateral horizontal end portions 29 on the tops of the channels 22 and 25.
- the nailable steel floor section 30 (see FIG.
- the nailable steel floor section 30 has its right upright end 30a on the left flange end portion 29 adjacent the left sloped portion 28 and also sits on longitudinal I-beam stringers 31 (stringers are also on left side of car) and side sill bottom flange 32 which sits on longitudinal angle member 32a.
- the left end portion 33 of the nailable steel floor section 30 is adjacent the removably attached runner channel member 34 located in the elongated longitudinal passage, runner or recessed area 35.
- the construction of the nailable steel floor section 30 is shown, for instance, in U.S. Pat. No. 3,216,165 issued on Nov. 9, 1965 to William R. Shaver.
- the runner channel member 34 has a top 36 and sides 37 and has on its left laterally spaced overlapping closure angle members 38 and 39. As better seen in FIG.
- the angle member 38 has a top flange 38a and a side flange 38b and angle member 39 has a top flange 39a and a side flange 39b.
- the angle plate flange 39a extends and attaches to upright flange 40 of the side sill 11.
- a central longitudinal steel plate or floor cap structure 41 is on the stationary sill top plate 24 and has a flat top member 42 and short side angle members 43 engaging slope portions 28 and 29, the right end side angle member 43 being adjacent another longitudinal nailable steel floor section 44 which is identical to floor section 30 but on the right side of the center sill structure 12.
- FIG. 4 illustrates the car doorway condition in cross-section which includes the inverted U-shaped floor flush threshold plate 7a, a reduced side sill upright portion 40a and load rack retainer bar to hold in the load.
- the doorway 7 is a door track 7c and door track bracket 7d.
- the runner inverted filler channel member 34 on each side of the car floor may be removed and replaced by a bulkhead engageable track member 45 as seen in FIGS. 3,5,6 and 7.
- the track is in the form of a rack and has teeth 46 and trough portions or recessed portions 47 which receive teeth 48 of a removable transverse bulkhead 50 as seen in FIGS. 3, and 5-7.
- Similar bulkhead tracks 51 are located in the car ceiling 52 for retaining the top 53 of the divider bulkhead 50 as seen in FIG. 6. The bulkhead may be thus moved to various positions along the tracks 45 and 51 and restrained thereat by teeth 46 and 48.
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
A high cubic capacity railroad boxcar that is provided with a longitudinally extending depressed nailable steel floor section disposed on each side of a longitudinally extending center sill structure, the top surface of the floor sections being at the same elevation as the surface of a plate over the center sill structure, the outside lateral margins of each floor section having a removable inverted filler channel member positioned in a longitudinal runner recess adjacent a car angle member and side sill. Each filler channel member may be replaced with a bulkhead floor track in the form of a slotted runner member or a rack gear member and cooperate with a similar overhead track for receiving, locating and restraining removable bulkheads later added to the car by a lading shipper as may be required.
Description
1. Field of the Invention
This invention relates to the construction of railroad freight cars, such as boxcars, where transverse bulkheads divide the interior into load confining compartments, and in particular to car floor constructions.
2. Description of the Prior Art
It has been known to provide various interior freight car constructions to increase the volumetric capacity of the car. However, such construction alterations have been limited by the car center sill height. It is this problem that the instant invention resolves.
It is a general object of this invention to provide an improved freight railroad car, such as a boxcar, which has increased volumetric capacity by recessing the car floor sections about the center sill structure of the car underframe.
The invention provides an improved nailable floor construction that includes a pair of longitudinal floor sections, one on each side of the center sill where the top of the floor sections, the top of a plate on the center sill, and the top of the side sill all lie in the same horizontal plane. The invention further provides a removable longitudinal floor section between the side sill and the floor section and in a longitudinal runner recess for alternately receiving a transverse bulkhead supporting rack type track cooperating with a ceiling bulkhead supporting track thereabove.
FIG. 1 is a side elevation view of a railroad boxcar with the improved inventive floor design;
FIG. 2 is a sectional view taken along line 2--2 of FIG. 1;
FIG. 3 is a partial enlarged sectional view of that shown in FIG. 2 but with the bulkhead rack track replacing the removable inverted channel;
FIG. 4 is a sectional view taken along line 4--4 of FIG. 1;
FIG. 5 is a plan view taken along line 5--5 of FIG. 1 of the floor construction with parts removed;
FIG. 6 is a partial perspective view with parts missing of the bulkhead track portion taken along line 6--6 of FIG. 1; and
FIG. 7 is a partial enlarged side view of the bulkhead and floor track.
With reference to the drawings and in particular with reference to FIG. 1, there is shown a railroad freight car 1 of the boxcar type which has a roof 2 and ends 3 and 4, and sides 5 each with sliding door means 6 in a doorway 7 and side posts 8. Each car has an underframe 9 which includes the usual side sill reinforcements 10, side sills 11, center sill structure 12, and trucks 13.
In FIG. 2 it is seen that the side sill 11 is an L-shaped angle member from which extends downwardly the channel-shaped side sill reinforcement 10 which connects with a transversely extending horizontal crossmember 14 that extends inwardly to the center sill structure 12 which includes a fixed or stationary center sill 15 and a conventional sliding center sill 16. Another crossmember 17 extends from the outer side of the center sill structure to the other side (not shown) of the car which has the same type of side construction including a side sill, side sill reinforcement, etc. The crossmember 14 or 17 includes a vertical web 18, a bottom plate or flange 19, and a top plate or flange 20, and an upright outer end flange 21 between the upright channel member 22 of the fixed sill and the side sill reinforcement 10 which has a bottom reinforcement plate 23. The fixed sill has a top cover plate 24 joined to the member 22 and to the other stationary center sill upright channel member 25. The inner end portion 26 of the top crossmember plate 20 slopes up onto the top of the channel member 22. The fixed sill cover plate 24 is spaced above the stationary sill 15 and has flat top portion 27, outward and downward sloping side portions 28 and lateral horizontal end portions 29 on the tops of the channels 22 and 25. The nailable steel floor section 30 (see FIG. 2) has its right upright end 30a on the left flange end portion 29 adjacent the left sloped portion 28 and also sits on longitudinal I-beam stringers 31 (stringers are also on left side of car) and side sill bottom flange 32 which sits on longitudinal angle member 32a. The left end portion 33 of the nailable steel floor section 30 is adjacent the removably attached runner channel member 34 located in the elongated longitudinal passage, runner or recessed area 35. The construction of the nailable steel floor section 30 is shown, for instance, in U.S. Pat. No. 3,216,165 issued on Nov. 9, 1965 to William R. Shaver. The runner channel member 34 has a top 36 and sides 37 and has on its left laterally spaced overlapping closure angle members 38 and 39. As better seen in FIG. 3, the angle member 38 has a top flange 38a and a side flange 38b and angle member 39 has a top flange 39a and a side flange 39b. The angle plate flange 39a extends and attaches to upright flange 40 of the side sill 11. A central longitudinal steel plate or floor cap structure 41 is on the stationary sill top plate 24 and has a flat top member 42 and short side angle members 43 engaging slope portions 28 and 29, the right end side angle member 43 being adjacent another longitudinal nailable steel floor section 44 which is identical to floor section 30 but on the right side of the center sill structure 12. The horizontal tops of the angle members 38 and 39 are substantially in the same horizontal plane as the tops of members 38, 30, 41 and 44, these members being flush with one another so that a smooth floor is presented. Thus the nailable steel floor sections are recessed or depressed at center sill level to provide for increased volume within the boxcar. The sliding sill 16 is provided with guides 16a and the car sides 5 are provided with side sheeting 5a. It will be appreciated that the construction of the car on either side of the center sill structure is identical. FIG. 4 illustrates the car doorway condition in cross-section which includes the inverted U-shaped floor flush threshold plate 7a, a reduced side sill upright portion 40a and load rack retainer bar to hold in the load. The doorway 7 is a door track 7c and door track bracket 7d. The runner inverted filler channel member 34 on each side of the car floor may be removed and replaced by a bulkhead engageable track member 45 as seen in FIGS. 3,5,6 and 7. The track is in the form of a rack and has teeth 46 and trough portions or recessed portions 47 which receive teeth 48 of a removable transverse bulkhead 50 as seen in FIGS. 3, and 5-7. Similar bulkhead tracks 51 are located in the car ceiling 52 for retaining the top 53 of the divider bulkhead 50 as seen in FIG. 6. The bulkhead may be thus moved to various positions along the tracks 45 and 51 and restrained thereat by teeth 46 and 48.
The foregoing description and drawings merely explain and illustrate the invention insofar as the appended claims are so limited, as those skilled in the art who have the disclosure before them will be able to make modifications and variations therein without departing from the scope of the invention.
Claims (18)
1. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of .Iadd.generally L-shaped .Iaddend.side sills, .Iadd.each having an upright portion and a horizontal portion .Iaddend.
a center sill structure spaced between the side sills,
said floor construction including a floor structure having a pair of recessed floor units .Iadd.having lateral and outer ends.Iaddend., one on either side of and extending substantially below the top of the center sill structure and .[.inwardly.]. .Iadd.having its outer lateral end supported on the horizontal portion .Iaddend.of a respective side sill, .[.and.].
said floor structure having a longitudinal recess portion .Iadd.with inner and outer sides .Iaddend.between each floor unit and .[.its.]. .Iadd.the upright portion of an .Iaddend.adjacent side sill and a removable filler within said recess portion. .[.2. The invention according to claim 1, and
each of said floor units having its outer lateral end supported by a respective side sill and having its inner lateral end supported by the
center sill structure..]. 3. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills,
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill, the recessed floor units having top surfaces, .[.and.].
said floor structure including a flat plate means over the center sill structure and connecting with each floor unit and having a top surface generally flush with the top surfaces of the floor units to present a generally smooth horizontal floor .Iadd.,
each car having vertical side walls,
each floor unit having an outer edge spaced inwardly from the respective side wall,
each side sill having an inwardly extending horizontal portion underlapped with respect to the adjacent outer edge of the associated floor unit and defining a recess therewith extending lengthwise of the car,
transversely extending crossmembers connected at one end to the center sill and extending therefrom to beneath respective side sills,
a longitudinally extending channel-shaped side sill reinforcement member beneath each side sill member and connected to the horizontal portion thereof, and
a longitudinal member positioned adjacent to each reinforcement member and spaced inwardly thereof and connected between said horizontal portion of the adjacent side sill and the crossmembers therebeneath and forming a rectangular construction with said crossmembers and said reinforcement
member and the related side sill. .Iaddend. 4. The invention according to claim .[.2.]. .Iadd.3.Iaddend., and each of said floor units having its
outer lateral end supported by the side sill. 5. The invention according to claim 3, and each of said floor units having its outer lateral end supported by a respective side sill and having its inner lateral end
supported by the center sill structure. 6. The invention according to claim 3, and said floor structure having a longitudinal runner recess portion between each floor unit and its adjacent side sill and a removable filler within said recess portion adapted to be removed and replaced by a transversely extending bulkhead track for locating and holding a load divider bulkhead in one of various longitudinal positions within the car.
. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills, and
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill,
said floor structure having a longitudinal runner recess portion between each floor unit and its adjacent side sill and a removable filler within said recess portion adapted to be removed and replaced by a transversely extending bulkhead track for locating and holding a load divider bulkhead
in one of various longitudinal positions within the car. 8. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills, and
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill,
said floor structure having a longitudinal runner recess portion between each floor unit and its adjacent side sill and a removable filler within said recess portion adapted to be removed and replaced by a transversely extending bulkhead track for locating and holding a load divider bulkhead in one of various longitudinal positions within the car, and
said floor structure including closure means between a runner recess portion and an adjacent side sill, the top surface of the closure means, the runner recess portion and the side sill lying generally in the same
horizontal plane. 9. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills, and
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill;
said floor structure having a longitudinal runner recess portion between each floor unit and its adjacent side sill and a removable filler within said recess portion adapted to be removed and replaced by a transversely extending bulkhead track for locating and holding a load divider bulkhead in one of various longitudinal positions within the car, and
the removable filler lying generally in the same horizontal plane as its
adjacent floor unit. 10. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills, .[.and.].
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill,
each floor unit being recessingly supported on a side sill and said adjacent center sill structure with the top portion of the center sill structure extending approximately in the same general horizontal plane as the top of the floor unit.Iadd., and
each side sill and having a vertical portion spaced laterally outwardly from an adjacent outer edge portion of the respective floor unit and having a horizontal portion extending under the adjacent outer edge portion, said portions of each side sill and the edge portion of the related floor unit forming a longitudinal recess which is positioned inside of said vertical side walls for accommodating bulkhead mounting structure therein, and a removable inverted U-shaped filler member positioned in each recess providing a top wall having a surface coplanar
with said plane. .Iaddend. 11. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a .Iadd.slidable .Iaddend.center sill structure spaced between the side sills, .[.and.].
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill,
a top floor plate on the top of the center sill structure being in the same horizontal plane as the top of each of the floor units.Iadd.,
said floor units having lateral edge portions spaced inwardly from respective sides of the car,
angle member means mounted upon each side sill and connected thereto and defining a longitudinal recess with the adjacent edge portion of the respective floor unit,
a removable filler mounted in each recess in covering relation thereto and having a top wall providing a surface coplanar with said plane and having depending walls closely fitting along the respective sides of the associated recess,
a stationary center sill at each side of said slidable center sill structure,
a longitudinal reinforcement member beneath each side sill and connected thereto, and
floor unit supporting cross-members at each side of the car and extending between and connected to the stationary center sill and reinforcement
member at that side of the car. .Iaddend.12. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills, .[.and.].
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending, substantially below the top of the center sill structure and inwardly of a respective side sill,
each of said floor units being supported by a crossmember spaced between a respective side portion of the car and a respective side of the center sill structure.Iadd., and
each floor unit having an outer lateral terminal edge portion spaced inwardly of the respective vertical sidewall of the car, and each side sill having a bottom flange portion extending under the edge portion of the respective floor unit and defining a bulkhead receiving recess, which is positioned inside the respective vertical sidewall of the car and a reinforcement member having a vertical portion connected to the adjacent end of said crossmembers, said bottom flange portion of the side sill and said reinforcement member having an inwardly directed upper portion disposed in reinforcing supporting relation to said side sill bottom
flange portion. .Iaddend. 13. The invention according to claim 12, and .[.stringer means being interposed between each floor unit and each crossmember.]. .Iadd.longitudinal angle members comprising an outwardly directed lower flange seated upon said crossmember and a vertical flange having an upper end connected to the underside of said bottom flange
portion. .Iaddend. 14. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills, and
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill,
said floor structure having a longitudinal runner recess portion between each floor unit and its adjacent side sill and a removable filler within said recess portion adapted to be removed and replaced by a transversely extending bulkhead track for locating and holding a load divider bulkhead in one of various longitudinal positions within the car, and
a longitudinal doorway threshold plate having a top surface in the same horizontal plane as the top of the removable filler and laterally
outwardly adjacent thereto. 15. The invention according to claim 14, and
the threshold plate being supported by its respective side sill. 16. The invention according to claim 15, and a load rack retainer on the threshold
plate. 17. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills,
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill, the recessed floor units having top surfaces,
said floor structure including a flat plate means over the center sill structure and connecting with each floor unit and having a top surface generally flush with the top surfaces of the floor units to present a generally smooth horizontal floor,
each of said floor units having its outer lateral end supported by a respective side sill and having its inner lateral end supported by the center sill structure,
said floor structure having a longitudinal runner recess portion between each floor unit and its adjacent side sill and a removable filler within said recess portion adapted to be removed and replaced by a transversely extending bulkhead track for locating and holding a load divider bulkhead in one of various longitudinal positions within the car, and
the removable filler lying generally in the same horizontal plane as its
adjacent floor unit. 18. The invention according to claim 17, and each of said floor units being supported by a crossmember spaced between a respective side portion of the car and a respective side of the center
sill structure. 19. The invention according to claim 18, and stringer means being interposed between each floor unit and each crossmember. .[.20. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills,
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill,
a longitudinal runner recess portion between each side sill and floor unit, and
a load divider bulkhead rack in each recess portion..]. .[.21. The invention according to claim 20, and load divider bulkhead rack means in the ceiling of the car to cooperate with the floor racks..]. .[.22. The invention according to claim 20, and a transverse load divider bulkhead coupling with said racks..]. .Iadd. 23. A railroad car for high cubic capacity interior design including a recessed floor construction and comprising:
a pair of side sills,
a center sill structure spaced between the side sills,
said floor construction including a floor structure having a pair of recessed floor units, one on either side of and extending substantially below the top of the center sill structure and inwardly of a respective side sill,
said floor structure having a longitudinal recess portion between each floor unit and its adjacent side sill and a removable filler within said recess portion, and
said floor units comprising a plurality of substantially contiguous and longitudinally spaced steel planks extending transversely with respect to said car,
a vertically elongated plate extending longitudinally of the car and connected to the ends of the planks and forming an inner side of the recess. .Iaddend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/906,799 USRE30388E (en) | 1974-04-08 | 1978-05-17 | Railroad car with depressed floor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US458741A US3885506A (en) | 1974-04-08 | 1974-04-08 | Railroad car with depressed floor |
| US05/906,799 USRE30388E (en) | 1974-04-08 | 1978-05-17 | Railroad car with depressed floor |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US458741A Reissue US3885506A (en) | 1974-04-08 | 1974-04-08 | Railroad car with depressed floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USRE30388E true USRE30388E (en) | 1980-09-02 |
Family
ID=27039102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/906,799 Expired - Lifetime USRE30388E (en) | 1974-04-08 | 1978-05-17 | Railroad car with depressed floor |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USRE30388E (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6431085B1 (en) | 2000-12-20 | 2002-08-13 | Gunderson, Inc. | Center beam car with depressed cargo-carrying area |
| US20020124766A1 (en) * | 2001-03-12 | 2002-09-12 | Forbes James W. | Dropped deck center beam rail road car |
| US6523484B2 (en) | 2000-12-20 | 2003-02-25 | Gunderson, Inc. | Center beam car with depressed cargo-carrying area |
| US20040011243A1 (en) * | 2000-11-02 | 2004-01-22 | National Steel Car | Dropped deck center beam rail road car |
| US20040221764A1 (en) * | 2003-05-09 | 2004-11-11 | National Steel Car Ltd. | Dropped deck center beam rail road car with shallow center sill |
| US20040234353A1 (en) * | 1999-12-08 | 2004-11-25 | National Steel Car Limited | Center beam car with deep upper beam structure |
| US6962114B1 (en) | 2000-11-02 | 2005-11-08 | National Steel Car Limited | Dropped deck center beam rail road car |
| USRE39777E1 (en) | 2000-11-02 | 2007-08-21 | National Steel Car Limited | Dropped deck center beam rail road car structure |
| US7434519B2 (en) | 2005-11-10 | 2008-10-14 | National Steel Car Limited | Rail road freight car |
| US7461600B2 (en) | 2005-11-10 | 2008-12-09 | National Steel Car Limited | Rail road freight car structure |
| US7546808B2 (en) | 2006-06-22 | 2009-06-16 | Gunderson, Inc. | Railroad car with lightweight center beam structure |
| US20100011987A1 (en) * | 2008-07-21 | 2010-01-21 | National Steel Car Limited | Railroad gondola car structure |
| US20150144024A1 (en) * | 2012-05-31 | 2015-05-28 | Siemens Aktiengesellschaft | Rail vehicle comprising a trough-shaped inner floor |
| US9346472B2 (en) | 2013-09-12 | 2016-05-24 | National Steel Car Limited | Rail road freight car |
| CN112078619B (en) * | 2020-09-24 | 2021-11-16 | 中车株洲电力机车有限公司 | Rail vehicle chassis structure and rail vehicle |
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Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040234353A1 (en) * | 1999-12-08 | 2004-11-25 | National Steel Car Limited | Center beam car with deep upper beam structure |
| USRE41261E1 (en) | 1999-12-08 | 2010-04-27 | National Steel Car Limited | Center beam car with deep upper beam structure |
| US7249562B2 (en) | 1999-12-08 | 2007-07-31 | National Steel Car Limited | Center beam car with deep upper beam structure |
| US7108467B2 (en) | 1999-12-08 | 2006-09-19 | National Steel Car Limited | Center beam car with deep upper beam structure |
| US20050045060A1 (en) * | 1999-12-08 | 2005-03-03 | National Steel Car Limited | Center beam car with deep upper beam structure |
| US20050263033A1 (en) * | 2000-11-02 | 2005-12-01 | National Steel Car Limited | Dropped deck center beam rail road car |
| USRE39777E1 (en) | 2000-11-02 | 2007-08-21 | National Steel Car Limited | Dropped deck center beam rail road car structure |
| US7424854B2 (en) | 2000-11-02 | 2008-09-16 | National Steel Car Limited | Dropped deck center beam rail road car |
| US6920829B2 (en) | 2000-11-02 | 2005-07-26 | National Steel Car Limited | Dropped deck center beam rail road car |
| US6962114B1 (en) | 2000-11-02 | 2005-11-08 | National Steel Car Limited | Dropped deck center beam rail road car |
| US7337727B2 (en) | 2000-11-02 | 2008-03-04 | National Steel Car Limited | Dropped deck center beam rail road car |
| US6983702B2 (en) | 2000-11-02 | 2006-01-10 | National Steel Car Limited | Dropped deck center beam rail road car |
| US20040237832A1 (en) * | 2000-11-02 | 2004-12-02 | National Steel Car Limited | Dropped deck center beam rail road car |
| US20040011243A1 (en) * | 2000-11-02 | 2004-01-22 | National Steel Car | Dropped deck center beam rail road car |
| US6523484B2 (en) | 2000-12-20 | 2003-02-25 | Gunderson, Inc. | Center beam car with depressed cargo-carrying area |
| US7506591B2 (en) | 2000-12-20 | 2009-03-24 | Gunderson, Inc. | Center beam car with depressed cargo-carrying area |
| US6431085B1 (en) | 2000-12-20 | 2002-08-13 | Gunderson, Inc. | Center beam car with depressed cargo-carrying area |
| US7044062B2 (en) | 2001-03-12 | 2006-05-16 | National Steel Car Limited | Dropped deck center beam rail road car |
| US20020124766A1 (en) * | 2001-03-12 | 2002-09-12 | Forbes James W. | Dropped deck center beam rail road car |
| US20040221764A1 (en) * | 2003-05-09 | 2004-11-11 | National Steel Car Ltd. | Dropped deck center beam rail road car with shallow center sill |
| US7434519B2 (en) | 2005-11-10 | 2008-10-14 | National Steel Car Limited | Rail road freight car |
| US8025014B2 (en) | 2005-11-10 | 2011-09-27 | National Steel Car Limited | Railroad freight car |
| US7559284B2 (en) | 2005-11-10 | 2009-07-14 | National Steel Car Limited | Railroad freight car |
| US20100006000A1 (en) * | 2005-11-10 | 2010-01-14 | National Steel Car Limited | Railroad freight car |
| US20090031919A1 (en) * | 2005-11-10 | 2009-02-05 | National Steel Car Limited | Railroad freight car |
| US7461600B2 (en) | 2005-11-10 | 2008-12-09 | National Steel Car Limited | Rail road freight car structure |
| US7757611B2 (en) | 2005-11-10 | 2010-07-20 | National Steel Car Limited | Railroad freight car |
| US20100275812A1 (en) * | 2005-11-10 | 2010-11-04 | National Steel Car Limited | Railroad freight car |
| US20110017095A1 (en) * | 2005-11-10 | 2011-01-27 | National Steel Car Limited | Railroad freight car |
| US7878125B2 (en) | 2005-11-10 | 2011-02-01 | National Steel Car Limited | Railroad freight car |
| US7546808B2 (en) | 2006-06-22 | 2009-06-16 | Gunderson, Inc. | Railroad car with lightweight center beam structure |
| US20100011987A1 (en) * | 2008-07-21 | 2010-01-21 | National Steel Car Limited | Railroad gondola car structure |
| US9156478B2 (en) | 2008-07-21 | 2015-10-13 | National Steel Car Limited | Railroad gondola car structure |
| US11008025B2 (en) | 2008-07-21 | 2021-05-18 | National Steel Car Limited | Railroad gondola car structure |
| US20150144024A1 (en) * | 2012-05-31 | 2015-05-28 | Siemens Aktiengesellschaft | Rail vehicle comprising a trough-shaped inner floor |
| US9346472B2 (en) | 2013-09-12 | 2016-05-24 | National Steel Car Limited | Rail road freight car |
| CN112078619B (en) * | 2020-09-24 | 2021-11-16 | 中车株洲电力机车有限公司 | Rail vehicle chassis structure and rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: PULLMAN STANDARD INC., 200 S. MICHIGAN AVE., CHICA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:M.W. KELLOGG COMPANY, THE;REEL/FRAME:004370/0168 Effective date: 19840224 |