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Class Information
Number: 105/248
Name: Railway rolling stock > Special car bodies > Dumping > Hopper type > Multiple hopper
Description: Lading receptacles in which the car bottom has a plurality of funnel-shaped outlets longitudinally arranged.


Sub-classes under this class:

Class Number Class Name Patents
105/249 Facing center chute 1


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7523708 Railroad hopper car transverse door actuating mechanism Apr. 28, 2009
6907828 Model train cars Jun. 21, 2005
6865992 Increased capacity railway car Mar. 15, 2005
6502518 Converted multiple hopper rail car and method for making same Jan. 7, 2003
6334397 Side sheets for a hopper and bulk container car Jan. 1, 2002
6273647 Pressure discharge railway hopper car Aug. 14, 2001
6237505 Large capacity car body for pressure discharge railway hopper cars May. 29, 2001
6213028 Increased capacity railway car Apr. 10, 2001
6205931 Aerator pad for fluidizing particulate materials Mar. 27, 2001
6044771 End structure assembly for hopper car Apr. 4, 2000
5934200 Lightweight hopper car Aug. 10, 1999
5794539 Moisture barrier filter seal for hopper rail car hatches Aug. 18, 1998
5443016 Convertible hopper railcar design with internal bracing for adapting car to haul bladders Aug. 22, 1995
5433559 Pressurized hopper car Jul. 18, 1995
5263421 Coal fly-ash railway hopper car with 70 degree minimum slope and end sheet angle and longitudinal dual purpose loading hatch Nov. 23, 1993
5259322 Five unit articulated covered hopper car Nov. 9, 1993
5209166 Aerodynamic self cleaning hopper car May. 11, 1993
5168816 Sludge car Dec. 8, 1992
5031546 Hopper car discharge system Jul. 16, 1991
5013530 Sparger system for discharge of bulk material from hopper cars May. 7, 1991
4966081 Articulated multi-unit hopper railway car Oct. 30, 1990
4922833 End structure for railway car May. 8, 1990
4909154 Aerodynamic end closures for railway hopper cars Mar. 20, 1990
4898101 Vehicle hopper body with internal reinforcing members Feb. 6, 1990
4893568 Railway car conversion to gondola car Jan. 16, 1990
4884511 Aluminum hopper car with cast collars interconnecting intersecting center sill hood with ridge hood and sloped end walls Dec. 5, 1989
4875417 End structure for railway car Oct. 24, 1989
4771702 Covered hopper car Sep. 20, 1988
4696237 Multiple hopper rail car with offset vertical weld from conversion Sep. 29, 1987
4696238 End structure for railway car Sep. 29, 1987
4677917 High volume covered hopper car with loading from below and automatic unloading Jul. 7, 1987
4644871 Articulated hopper railcar Feb. 24, 1987
4608931 Filament wound railway hopper car Sep. 2, 1986
4598646 High volume covered hopper car Jul. 8, 1986
RE32189 Railway hopper car roof support structure Jun. 24, 1986
4594948 Liquid and solid dual lading railroad car Jun. 17, 1986
4561361 Mounting for the top chords of the sides of a railroad hopper car Dec. 31, 1985
4498400 Hopper slope sheet support and connecting means Feb. 12, 1985
4497258 Transverse bulkhead connection to filament wound vehicle body sides Feb. 5, 1985
4484528 Railway hopper car Nov. 27, 1984
4478155 Railway container and car Oct. 23, 1984
4455947 Covered hopper car Jun. 26, 1984
4444123 Curved roof hooper car Apr. 24, 1984
4377058 Curved hopper car roof Mar. 22, 1983
4368673 Distribution means for partition sheet assembly Jan. 18, 1983
4366757 Actuating and locking means for the hopper doors of a railroad hopper car Jan. 4, 1983
4361096 Railway hopper car door seal Nov. 30, 1982
4352331 Railway hopper car Oct. 5, 1982
4348962 Railway hopper car bolster assembly Sep. 14, 1982
4346905 Tank trailer Aug. 31, 1982

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