ClassID:

68091

B61D7/22 - CPC Classification

Classification description:

Hopper cars; Adaptations of hopper elements to railways; Closure elements for discharge openings Sealing means thereof

Recent Application in this class:
#1
20260062036
2026-03-05

Hopper Car Discharge Gate Seal Assembly

#2
20260015017
2026-01-15

HOPPER CAR OUTLET GATE MECHANICAL FLAP TO PREVENT PELLET LOSS

#3
20230399033
2023-12-14

RAILROAD HOPPER CAR WITH FLOW THROUGH STRUCTURE

#4
20220371629
2022-11-24

HOPPER CAR DISCHARGE GATE SEAL ASSEMBLY

#5
20220363294
2022-11-17

Longitudinal door operating mechanism

#6
20220315064
2022-10-06

Hopper Car Outlet Gate Mechanical Flap to Prevent Pellet Loss

#7
20200353954
2020-11-12

Railroad hopper car with flow through structure

#8
20170267259
2017-09-21

Hopper car gate seal

#9
20170129504
2017-05-11

Gondola car clean-out door

#10
20160137210
2016-05-19

Rail road hopper car

#11
20150336591
2015-11-26

Open top hopper railcar with biased door seal and enlarged contoured end door

#12
20150096458
2015-04-09

Door sealing assembly for a railcar and method of assembling the same

#13
20150000555
2015-01-01

DISCHARGE ASSEMBLY FOR A WAGON

#14
20140366770
2014-12-18

DISCHARGE ASSEMBLY WITH SEAL

#15
20140331892
2014-11-13

Rail road hopper car ridge fittings

#16
20140224148
2014-08-14

Bottom door device and hopper car having the same

#17
20140158017
2014-06-12

Open top hopper railcar with biased door seal and enlarged contoured end door

#18
20130032055
2013-02-07

Side contoured open top hopper railcar with biased door seal and enlarged contoured end door

#19
20120199041
2012-08-09

Rail road hopper car ridge fittings

#20
20120042804
2012-02-23

Rail road hopper car ridge fittings

#21
20110227297
2011-09-22

Railroad car seal for railroad hopper cars

#22
20110000395
2011-01-06

Apparatus and method for securing a railcar sanitary cover

#23
20100319570
2010-12-23

Rail road hopper car structure

#24
20100132587
2010-06-03

Rail road hopper car ridge fittings

#25
20080066642
2008-03-20

Rail road hopper car fittings and method of operation

#26
20050166788
2005-08-04

Railway hopper car discharge gate

#27
15882143
2018-07-24

Method for actuating discharge doors of railroad hopper cars

#28
15807090
2018-03-13

Railroad hopper car with bottom discharge doors having angled seals and actuating assemblies